BCBS Prefix List IAA to IZZ

Blue Cross Blue Shield Provider Phone Number
Blue Cross Blue Shield Federal Phone Number
Blue Cross Blue Shield Claim Mailing address
BCBS Prefix List 2021 - AlphaState LookupBCBS Company
IAAWisconsinAnthem Blue-Cross Blue-Shield of Wisconsin
IAB-Unallocated/Not Assigned
IACOregon/Idaho/Utah/WashingtonRegence Blue-Cross Blue-Shield
IADIndianaAnthem Blue-Cross Blue-Shield of Indiana
IAEMichiganBlue-Cross Blue-Shield of Michigan
IAF-Unallocated/Not Assigned
IAGVirginiaAnthem Blue-Cross Blue-Shield of Virginia
IAHSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IAI-Unallocated/Not Assigned
IAJMaryland/District of Columbia/Northern VirginiaCarefirst Blue-Cross Blue-Shield
IAKCaliforniaBlue-Shield of California
IALSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IAMCaliforniaBlue-Shield of California
IAN-Unallocated/Not Assigned
IAO-Unallocated/Not Assigned
IAPSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IAQ-Unallocated/Not Assigned
IARAlabamaBlue-Cross Blue-Shield of Alabama
IASMassachusettsBlue-Cross Blue-Shield of Massachusetts
IAT BCBS PrefixNew YorkEmpire Blue-Cross Blue-Shield of New York
IAUNebraskaBlue-Cross Blue-Shield of Nebraska
IAVSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IAWSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IAX-Unallocated/Not Assigned
IAYSouth CarolinaBlue-Cross Blue-Shield of South Carolina
IAZ-Unallocated/Not Assigned
IBAIllinoisBlue-Cross Blue-Shield of Illinois
IBBNew JerseyHorizon Blue-Cross Blue-Shield of New Jersey
IBCWisconsinAnthem Blue-Cross Blue-Shield of Wisconsin
IBDWisconsinAnthem Blue-Cross Blue-Shield of Wisconsin
IBEIllinoisBlue-Cross Blue-Shield of Illinois
IBFSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IBG-Unallocated/Not Assigned
IBHAlabamaBlue-Cross Blue-Shield of Alabama
IBISouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IBJMichiganBlue-Cross Blue-Shield of Michigan
IBKGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IBLPennsylvaniaIndependence Blue-Cross of Philadelphia and Southeastern Pennsylvania
IBMCaliforniaBlue-Shield of California
IBN-Unallocated/Not Assigned
IBOPennsylvaniaIndependence Blue-Cross of Philadelphia and Southeastern Pennsylvania
IBPSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IBQOregon/Idaho/Utah/WashingtonRegence Blue-Cross Blue-Shield
IBRMichiganBlue-Cross Blue-Shield of Michigan
IBSGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IBTIllinoisBlue-Cross Blue-Shield of Illinois
IBUAlabamaBlue-Cross Blue-Shield of Alabama
IBVMassachusettsBlue-Cross Blue-Shield of Massachusetts
IBWIllinoisBlue-Cross Blue-Shield of Illinois
IBXCaliforniaAnthem Blue-Cross
IBY-Unallocated/Not Assigned
IBZOregon/Idaho/Utah/WashingtonRegence Blue-Cross Blue-Shield
ICAMaryland/District of Columbia/Northern VirginiaCarefirst Blue-Cross Blue-Shield
ICB-Unallocated/Not Assigned
ICCColoradoAnthem Blue-Cross Blue-Shield of Colorado
ICDMaryland/District of Columbia/Northern VirginiaCarefirst Blue-Cross Blue-Shield
ICEMaryland/District of Columbia/Northern VirginiaCarefirst Blue-Cross Blue-Shield
ICFMaryland/District of Columbia/Northern VirginiaCarefirst Blue-Cross Blue-Shield
ICGLouisianaBlue-Cross Blue-Shield of Louisiana
ICHVirginiaAnthem Blue-Cross Blue-Shield of Virginia
ICIFloridaFlorida-Blue
ICJGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
ICKMaryland/District of Columbia/Northern VirginiaCarefirst Blue-Cross Blue-Shield
ICLMaryland/District of Columbia/Northern VirginiaCarefirst Blue-Cross Blue-Shield
ICMCaliforniaBlue-Shield of California
ICNGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
ICONorth CarolinaBlue-Cross Blue-Shield of North Carolina
ICPGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
ICQ-Unallocated/Not Assigned
ICROhioAnthem Blue-Cross Blue-Shield of Ohio
ICS-Unallocated/Not Assigned
ICTNew York (Western)Blue-Cross Blue-Shield of Western New York
ICU-Unallocated/Not Assigned
ICVMichiganBlue-Cross Blue-Shield of Michigan
ICWMassachusettsBlue-Cross Blue-Shield of Massachusetts
ICX-Unallocated/Not Assigned
ICYOhioAnthem Blue-Cross Blue-Shield of Ohio
ICZ-Unallocated/Not Assigned
IDAIdahoBlue-Cross of Idaho
IDBFloridaFlorida-Blue
IDC-Unallocated/Not Assigned
IDDVirginiaAnthem Blue-Cross Blue-Shield of Virginia
IDEIdahoBlue-Cross of Idaho
IDFIdahoBlue-Cross of Idaho
IDG-Unallocated/Not Assigned
IDH-Unallocated/Not Assigned
IDICaliforniaBlue-Shield of California
IDJVirginiaAnthem Blue-Cross Blue-Shield of Virginia
IDKNew YorkEmpire Blue-Cross Blue-Shield of New York
IDLIdahoBlue-Cross of Idaho
IDMIdahoBlue-Cross of Idaho
IDNIdahoBlue-Cross of Idaho
IDOKansasBlue-Cross Blue-Shield of Kansas
IDPIdahoBlue-Cross of Idaho
IDQVirginiaAnthem Blue-Cross Blue-Shield of Virginia
IDRCaliforniaAnthem Blue-Cross
IDSKansas CityBlue-Cross Blue-Shield of Kansas City
IDTVirginiaAnthem Blue-Cross Blue-Shield of Virginia
IDULouisianaBlue-Cross Blue-Shield of Louisiana
IDV-Unallocated/Not Assigned
IDW-Unallocated/Not Assigned
IDXIllinoisBlue-Cross Blue-Shield of Illinois
IDYSouth CarolinaBlue-Cross Blue-Shield of South Carolina
IDZSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IEAOregon/Idaho/Utah/WashingtonRegence Blue-Cross Blue-Shield
IEBIndianaAnthem Blue-Cross Blue-Shield of Indiana
IECCaliforniaBlue-Shield of California
IED BCBS PrefixIndianaAnthem Blue-Cross Blue-Shield of Indiana
IEE-Unallocated/Not Assigned
IEFMassachusettsBlue-Cross Blue-Shield of Massachusetts
IEG-Unallocated/Not Assigned
IEHAlaskaPremera Blue-Cross Blue-Shield of Alaska
IEIPennsylvaniaIndependence Blue-Cross of Philadelphia and Southeastern Pennsylvania
IEJSouth CarolinaBlue-Cross Blue-Shield of South Carolina
IEKMaryland/District of Columbia/Northern VirginiaCarefirst Blue-Cross Blue-Shield
IELIllinoisBlue-Cross Blue-Shield of Illinois
IEM-Unallocated/Not Assigned
IEN-Unallocated/Not Assigned
IEO BCBS PrefixNorth CarolinaBlue-Cross Blue-Shield of North Carolina
IEPLouisianaBlue-Cross Blue-Shield of Louisiana
IEQNew YorkEmpire Blue-Cross Blue-Shield of New York
IERVirginiaAnthem Blue-Cross Blue-Shield of Virginia
IESTexasBlue-Cross Blue-Shield of Texas
IETConnecticutAnthem Blue-Cross Blue-Shield of Connecticut
IEULouisianaBlue-Cross Blue-Shield of Louisiana
IEV-Unallocated/Not Assigned
IEWIllinoisBlue-Cross Blue-Shield of Illinois
IEXMichiganBlue-Cross Blue-Shield of Michigan
IEYSouth CarolinaBlue-Cross Blue-Shield of South Carolina
IEZMaryland/District of Columbia/Northern VirginiaCarefirst Blue-Cross Blue-Shield
IFAGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IFBSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IFCNew York (Western)Blue-Cross Blue-Shield of Western New York
IFDOregon/Idaho/Utah/WashingtonRegence Blue-Cross Blue-Shield
IFEGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IFFSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IFG-Unallocated/Not Assigned
IFHPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IFIPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IFJPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IFKPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IFLOregon/Idaho/Utah/WashingtonRegence Blue-Cross Blue-Shield
IFM-Unallocated/Not Assigned
IFNPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IFOPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IFPNevadaAnthem Blue-Cross Blue-Shield of Nevada
IFQMaryland/District of Columbia/Northern VirginiaCarefirst Blue-Cross Blue-Shield
IFRKentuckyAnthem Blue-Cross Blue-Shield of Kentucky
IFS-Unallocated/Not Assigned
IFTPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IFUPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IFVPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IFWPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IFXOhioAnthem Blue-Cross Blue-Shield of Ohio
IFYMaryland/District of Columbia/Northern VirginiaCarefirst Blue-Cross Blue-Shield
IFZSouth CarolinaBlue-Cross Blue-Shield of South Carolina
IGAPennsylvaniaIndependence Blue-Cross of Philadelphia and Southeastern Pennsylvania
IGB-Unallocated/Not Assigned
IGCMaryland/District of Columbia/Northern VirginiaCarefirst Blue-Cross Blue-Shield
IGDSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IGEAlabamaBlue-Cross Blue-Shield of Alabama
IGFCaliforniaBlue-Shield of California
IGGCaliforniaBlue-Shield of California
IGHPennsylvaniaIndependence Blue-Cross of Philadelphia and Southeastern Pennsylvania
IGISouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IGJPennsylvaniaIndependence Blue-Cross of Philadelphia and Southeastern Pennsylvania
IGKPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IGLPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IGM-Unallocated/Not Assigned
IGNPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IGONew York (Western)Blue-Cross Blue-Shield of Western New York
IGPSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IGQPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IGR-Unallocated/Not Assigned
IGS-Unallocated/Not Assigned
IGT-Unallocated/Not Assigned
IGULouisianaBlue-Cross Blue-Shield of Louisiana
IGVPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IGWMaryland/District of Columbia/Northern VirginiaCarefirst Blue-Cross Blue-Shield
IGXMaryland/District of Columbia/Northern VirginiaCarefirst Blue-Cross Blue-Shield
IGYMaryland/District of Columbia/Northern VirginiaCarefirst Blue-Cross Blue-Shield
IGZPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IHA-Unallocated/Not Assigned
IHBSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IHC-Unallocated/Not Assigned
IHDNebraskaBlue-Cross Blue-Shield of Nebraska
IHEOhioAnthem Blue-Cross Blue-Shield of Ohio
IHFNew YorkEmpire Blue-Cross Blue-Shield of New York
IHG-Unallocated/Not Assigned
IHHAlabamaBlue-Cross Blue-Shield of Alabama
IHIPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IHJNew YorkEmpire Blue-Cross Blue-Shield of New York
IHKPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IHLWest VirginiaHighmark Blue-Cross Blue-Shield of West Virginia
IHMDelawareHighmark Blue-Cross Blue-Shield of Delaware
IHNCaliforniaBlue-Shield of California
IHOLouisianaBlue-Cross Blue-Shield of Louisiana
IHP-Unallocated/Not Assigned
IHQLouisianaBlue-Cross Blue-Shield of Louisiana
IHRCaliforniaBlue-Shield of California
IHSMassachusettsBlue-Cross Blue-Shield of Massachusetts
IHTAlabamaBlue-Cross Blue-Shield of Alabama
IHU-Unallocated/Not Assigned
IHV-Unallocated/Not Assigned
IHWCaliforniaBlue-Shield of California
IHXColoradoAnthem Blue-Cross Blue-Shield of Colorado
IHYGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IHZGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IIACaliforniaBlue-Shield of California
IIB-Unallocated/Not Assigned
IICNew JerseyHorizon Blue-Cross Blue-Shield of New Jersey
IIDIdahoBlue-Cross of Idaho
IIEPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IIFGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IIGPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IIH-Unallocated/Not Assigned
IIITennesseeBlue-Cross Blue-Shield of Tennessee
IIJPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IIKPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IILPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IIMPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IINMassachusettsBlue-Cross Blue-Shield of Massachusetts
IIO-Unallocated/Not Assigned
IIPNew York (Western)Blue-Cross Blue-Shield of Western New York
IIQFloridaFlorida-Blue
IIRSouth CarolinaBlue-Cross Blue-Shield of South Carolina
IIS-Unallocated/Not Assigned
IITIllinoisBlue-Cross Blue-Shield of Illinois
IIUPennsylvaniaIndependence Blue-Cross of Philadelphia and Southeastern Pennsylvania
IIVFloridaFlorida-Blue
IIWCaliforniaBlue-Shield of California
IIXIdahoBlue-Cross of Idaho
IIYSouth CarolinaBlue-Cross Blue-Shield of South Carolina
IIZFloridaFlorida-Blue
IJAWisconsinAnthem Blue-Cross Blue-Shield of Wisconsin
IJBKentuckyAnthem Blue-Cross Blue-Shield of Kentucky
IJC-Unallocated/Not Assigned
IJDNew HampshireAnthem Blue-Cross Blue-Shield of New Hampshire
IJENew York (Western)Blue-Cross Blue-Shield of Western New York
IJFGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IJGGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IJHGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IJIGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IJJGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IJKGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IJLGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IJM-Unallocated/Not Assigned
IJNFloridaFlorida-Blue
IJO-Unallocated/Not Assigned
IJPSouth CarolinaBlue-Cross Blue-Shield of South Carolina
IJQGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IJRIdahoBlue-Cross of Idaho
IJSWisconsinAnthem Blue-Cross Blue-Shield of Wisconsin
IJTGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IJUTexasBlue-Cross Blue-Shield of Texas
IJVGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IJW-Unallocated/Not Assigned
IJXGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IJYPennsylvaniaCapital Blue-Cross of Pennsylvania
IJZSouth CarolinaBlue-Cross Blue-Shield of South Carolina
IKAKentuckyAnthem Blue-Cross Blue-Shield of Kentucky
IKBVirginiaAnthem Blue-Cross Blue-Shield of Virginia
IKCVirginiaAnthem Blue-Cross Blue-Shield of Virginia
IKDSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IKEPennsylvaniaIndependence Blue-Cross of Philadelphia and Southeastern Pennsylvania
IKFPennsylvaniaIndependence Blue-Cross of Philadelphia and Southeastern Pennsylvania
IKG-Unallocated/Not Assigned
IKHSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IKIFloridaFlorida-Blue
IKJ-Unallocated/Not Assigned
IKKMichiganBlue-Cross Blue-Shield of Michigan
IKLVirginiaAnthem Blue-Cross Blue-Shield of Virginia
IKM-Unallocated/Not Assigned
IKN-Unallocated/Not Assigned
IKODelawareHighmark Blue-Cross Blue-Shield of Delaware
IKP-Unallocated/Not Assigned
IKQSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IKRMissouriAnthem Blue-Cross Blue-Shield of Missouri
IKSCaliforniaBlue-Shield of California
IKTKentuckyAnthem Blue-Cross Blue-Shield of Kentucky
IKUGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IKVMichiganBlue-Cross Blue-Shield of Michigan
IKW-Unallocated/Not Assigned
IKXMichiganBlue-Cross Blue-Shield of Michigan
IKYNebraskaBlue-Cross Blue-Shield of Nebraska
IKZ-Unallocated/Not Assigned
ILANew YorkEmpire Blue-Cross Blue-Shield of New York
ILBMassachusettsBlue-Cross Blue-Shield of Massachusetts
ILCSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
ILDMichiganBlue-Cross Blue-Shield of Michigan
ILESouth Dakota/IowaWellmark Blue-Cross Blue-Shield
ILFAlabamaBlue-Cross Blue-Shield of Alabama
ILGCaliforniaBlue-Shield of California
ILHCaliforniaAnthem Blue-Cross
ILI-Unallocated/Not Assigned
ILJWisconsinAnthem Blue-Cross Blue-Shield of Wisconsin
ILKOregon/Idaho/Utah/WashingtonRegence Blue-Cross Blue-Shield
ILLCaliforniaAnthem Blue-Cross
ILM-Unallocated/Not Assigned
ILN-Unallocated/Not Assigned
ILOWisconsinAnthem Blue-Cross Blue-Shield of Wisconsin
ILP-Unallocated/Not Assigned
ILQ-Unallocated/Not Assigned
ILR-Unallocated/Not Assigned
ILSAlaskaPremera Blue-Cross Blue-Shield of Alaska
ILTIllinoisBlue-Cross Blue-Shield of Illinois
ILU-Unallocated/Not Assigned
ILVAlabamaBlue-Cross Blue-Shield of Alabama
ILWCaliforniaBlue-Shield of California
ILXAlabamaBlue-Cross Blue-Shield of Alabama
ILY BCBS PrefixCaliforniaAnthem Blue-Cross
ILZMichiganBlue-Cross Blue-Shield of Michigan
IMANew YorkExcellus Blue-Cross Blue-Shield of New York
IMBMassachusettsBlue-Cross Blue-Shield of Massachusetts
IMC-Unallocated/Not Assigned
IMD-Unallocated/Not Assigned
IMEPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IMFOregon/Idaho/Utah/WashingtonRegence Blue-Cross Blue-Shield
IMGOregon/Idaho/Utah/WashingtonRegence Blue-Cross Blue-Shield
IMHColoradoAnthem Blue-Cross Blue-Shield of Colorado
IMISouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IMJMissouriAnthem Blue-Cross Blue-Shield of Missouri
IMKMaineAnthem Blue-Cross Blue-Shield of Maine
IML-Unallocated/Not Assigned
IMMNew York (Western)Blue-Cross Blue-Shield of Western New York
IMN-Unallocated/Not Assigned
IMO-Unallocated/Not Assigned
IMP-Unallocated/Not Assigned
IMQTennesseeBlue-Cross Blue-Shield of Tennessee
IMRAlabamaBlue-Cross Blue-Shield of Alabama
IMSKentuckyAnthem Blue-Cross Blue-Shield of Kentucky
IMTSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IMULouisianaBlue-Cross Blue-Shield of Louisiana
IMVMassachusettsBlue-Cross Blue-Shield of Massachusetts
IMWOhioAnthem Blue-Cross Blue-Shield of Ohio
IMXMissouriAnthem Blue-Cross Blue-Shield of Missouri
IMYSouth CarolinaBlue-Cross Blue-Shield of South Carolina
IMZSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
INAKentuckyAnthem Blue-Cross Blue-Shield of Kentucky
INBAlaskaPremera Blue-Cross of Alaska
INCCaliforniaAnthem Blue-Cross
INDNorth CarolinaBlue-Cross Blue-Shield of North Carolina
INESouth CarolinaBlue-Cross Blue-Shield of South Carolina
INF-Unallocated/Not Assigned
INGOhioAnthem Blue-Cross Blue-Shield of Ohio
INH-Unallocated/Not Assigned
INIDelawareHighmark Blue-Cross Blue-Shield of Delaware
INJKentuckyAnthem Blue-Cross Blue-Shield of Kentucky
INKCaliforniaAnthem Blue-Cross
INLTennesseeBlue-Cross Blue-Shield of Tennessee
INM-Unallocated/Not Assigned
INN-Unallocated/Not Assigned
INOCaliforniaBlue-Shield of California
INPNorth CarolinaBlue-Cross Blue-Shield of North Carolina
INQOregon/Idaho/Utah/WashingtonRegence Blue-Cross Blue-Shield
INRIndianaAnthem Blue-Cross Blue-Shield of Indiana
INSSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
INTVirginiaAnthem Blue-Cross Blue-Shield of Virginia
INU-Unallocated/Not Assigned
INVSouth CarolinaBlue-Cross Blue-Shield of South Carolina
INWPennsylvaniaIndependence Blue-Cross of Philadelphia and Southeastern Pennsylvania
INX-Unallocated/Not Assigned
INYCaliforniaAnthem Blue-Cross
INZ-Unallocated/Not Assigned
IOA-Unallocated/Not Assigned
IOBTennesseeBlue-Cross Blue-Shield of Tennessee
IOCCaliforniaBlue-Shield of California
IODMichiganBlue-Cross Blue-Shield of Michigan
IOENew YorkEmpire Blue-Cross Blue-Shield of New York
IOFCaliforniaBlue-Shield of California
IOGNew York (Northeastern)Blue-Shield of Northeastern New York
IOH-Unallocated/Not Assigned
IOIMichiganBlue-Cross Blue-Shield of Michigan
IOJMichiganBlue-Cross Blue-Shield of Michigan
IOK-Unallocated/Not Assigned
IOLMichiganBlue-Cross Blue-Shield of Michigan
IOMMichiganBlue-Cross Blue-Shield of Michigan
IONFloridaFlorida-Blue
IOOMichiganBlue-Cross Blue-Shield of Michigan
IOPNew York (Western)Blue-Cross Blue-Shield of Western New York
IOQMichiganBlue-Cross Blue-Shield of Michigan
IORSouth CarolinaBlue-Cross Blue-Shield of South Carolina
IOSNorth CarolinaBlue-Cross Blue-Shield of North Carolina
IOTPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IOULouisianaBlue-Cross Blue-Shield of Louisiana
IOV-Unallocated/Not Assigned
IOW-Unallocated/Not Assigned
IOXOhioAnthem Blue-Cross Blue-Shield of Ohio
IOYSouth CarolinaBlue-Cross Blue-Shield of South Carolina
IOZCaliforniaBlue-Shield of California
IPAVirginiaAnthem Blue-Cross Blue-Shield of Virginia
IPBPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IPC-Unallocated/Not Assigned
IPDPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IPECaliforniaBlue-Shield of California
IPF-Unallocated/Not Assigned
IPGVirginiaAnthem Blue-Cross Blue-Shield of Virginia
IPHKansasBlue-Cross Blue-Shield of Kansas
IPI-Unallocated/Not Assigned
IPJ-Unallocated/Not Assigned
IPKCaliforniaBlue-Shield of California
IPL-Unallocated/Not Assigned
IPMPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IPNPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IPO-Unallocated/Not Assigned
IPPGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IPQOhioAnthem Blue-Cross Blue-Shield of Ohio
IPRSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IPSCaliforniaBlue-Shield of California
IPTIllinoisBlue-Cross Blue-Shield of Illinois
IPUIdahoBlue-Cross of Idaho
IPVMichiganBlue-Cross Blue-Shield of Michigan
IPWOregon/Idaho/Utah/WashingtonRegence Blue-Cross Blue-Shield
IPXSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IPYNew York (Western)Blue-Cross Blue-Shield of Western New York
IPZRhode IslandBlue-Cross Blue-Shield of Rhode Island
IQA-Unallocated/Not Assigned
IQBGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IQCPennsylvaniaCapital Blue-Cross of Pennsylvania
IQDGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IQETennesseeBlue-Cross Blue-Shield of Tennessee
IQFTennesseeBlue-Cross Blue-Shield of Tennessee
IQGIndianaAnthem Blue-Cross Blue-Shield of Indiana
IQHKentuckyAnthem Blue-Cross Blue-Shield of Kentucky
IQIMissouriAnthem Blue-Cross Blue-Shield of Missouri
IQJVirginiaAnthem Blue-Cross Blue-Shield of Virginia
IQKGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IQLGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IQMGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IQNLouisianaBlue-Cross Blue-Shield of Louisiana
IQOCaliforniaAnthem Blue-Cross
IQP-Unallocated/Not Assigned
IQQGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IQRWisconsinAnthem Blue-Cross Blue-Shield of Wisconsin
IQSPennsylvaniaIndependence Blue-Cross of Philadelphia and Southeastern Pennsylvania
IQTOhioAnthem Blue-Cross Blue-Shield of Ohio
IQUMichiganBlue-Cross Blue-Shield of Michigan
IQVGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IQWGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IQXGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IQYSouth CarolinaBlue-Cross Blue-Shield of South Carolina
IQZ-Unallocated/Not Assigned
IRANew JerseyHorizon Blue-Cross Blue-Shield of New Jersey
IRBMassachusettsBlue-Cross Blue-Shield of Massachusetts
IRCColoradoAnthem Blue-Cross Blue-Shield of Colorado
IRD-Unallocated/Not Assigned
IRE-Unallocated/Not Assigned
IRF-Unallocated/Not Assigned
IRGLouisianaBlue-Cross Blue-Shield of Louisiana
IRH-Unallocated/Not Assigned
IRIRhode IslandBlue-Cross Blue-Shield of Rhode Island
IRJSouth CarolinaBlue-Cross Blue-Shield of South Carolina
IRKAlabamaBlue-Cross Blue-Shield of Alabama
IRL-Unallocated/Not Assigned
IRMKansas CityBlue-Cross Blue-Shield of Kansas City
IRN-Unallocated/Not Assigned
IROOhioAnthem Blue-Cross Blue-Shield of Ohio
IRPFloridaFlorida-Blue
IRQFloridaFlorida-Blue
IRROhioAnthem Blue-Cross Blue-Shield of Ohio
IRSFloridaFlorida-Blue
IRTSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IRUConnecticutAnthem Blue-Cross Blue-Shield of Connecticut
IRV-Unallocated/Not Assigned
IRWCaliforniaBlue-Shield of California
IRXMassachusettsBlue-Cross Blue-Shield of Massachusetts
IRYPennsylvaniaIndependence Blue-Cross of Philadelphia and Southeastern Pennsylvania
IRZCaliforniaAnthem Blue-Cross
ISAOhioAnthem Blue-Cross Blue-Shield of Ohio
ISBAlaskaPremera Blue-Cross Blue-Shield of Alaska
ISCNew JerseyHorizon Blue-Cross Blue-Shield of New Jersey
ISDArizonaBlue-Cross Blue-Shield of Arizona
ISEVirginiaAnthem Blue-Cross Blue-Shield of Virginia
ISF-Unallocated/Not Assigned
ISG-Unallocated/Not Assigned
ISHMaryland/District of Columbia/Northern VirginiaCarefirst Blue-Cross Blue-Shield
ISICaliforniaBlue-Shield of California
ISJPennsylvaniaIndependence Blue-Cross of Philadelphia and Southeastern Pennsylvania
ISK-Unallocated/Not Assigned
ISLSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
ISMPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
ISNIdahoBlue-Cross of Idaho
ISOMassachusettsBlue-Cross Blue-Shield of Massachusetts
ISPWisconsinAnthem Blue-Cross Blue-Shield of Wisconsin
ISQKansas CityBlue-Cross Blue-Shield of Kansas City
ISR-Unallocated/Not Assigned
ISS-Unallocated/Not Assigned
ISTOhioAnthem Blue-Cross Blue-Shield of Ohio
ISUIdahoBlue-Cross of Idaho
ISV-Unallocated/Not Assigned
ISWIdahoBlue-Cross of Idaho
ISXSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
ISY-Unallocated/Not Assigned
ISZIdahoBlue-Cross of Idaho
ITAMaryland/District of Columbia/Northern VirginiaCarefirst Blue-Cross Blue-Shield
ITBSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
ITCMassachusettsBlue-Cross Blue-Shield of Massachusetts
ITDPennsylvaniaIndependence Blue-Cross of Philadelphia and Southeastern Pennsylvania
ITENorth CarolinaBlue-Cross Blue-Shield of North Carolina
ITFMichiganBlue-Cross Blue-Shield of Michigan
ITG-Unallocated/Not Assigned
ITHPennsylvaniaCapital Blue-Cross of Pennsylvania
ITI-Unallocated/Not Assigned
ITJ-Unallocated/Not Assigned
ITKMaryland/District of Columbia/Northern VirginiaCarefirst Blue-Cross Blue-Shield
ITL-Unallocated/Not Assigned
ITMMichiganBlue-Cross Blue-Shield of Michigan
ITN-Unallocated/Not Assigned
ITONew York (Northeastern)Blue-Shield of Northeastern New York
ITPOhioAnthem Blue-Cross Blue-Shield of Ohio
ITQSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
ITRNew YorkEmpire Blue-Cross Blue-Shield of New York
ITSArkansasArkansas Blue-Cross Blue-Shield
ITTGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
ITUOregon/Idaho/Utah/WashingtonRegence Blue-Cross Blue-Shield
ITV-Unallocated/Not Assigned
ITWIllinoisBlue-Cross Blue-Shield of Illinois
ITXOregon/Idaho/Utah/WashingtonRegence Blue-Cross Blue-Shield
ITYPennsylvaniaIndependence Blue-Cross of Philadelphia and Southeastern Pennsylvania
ITZGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IUASouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IUBConnecticutAnthem Blue-Cross Blue-Shield of Connecticut
IUCOhioAnthem Blue-Cross Blue-Shield of Ohio
IUD-Unallocated/Not Assigned
IUENew YorkEmpire Blue-Cross Blue-Shield of New York
IUFMissouriAnthem Blue-Cross Blue-Shield of Missouri
IUGAlaskaPremera Blue-Cross Blue-Shield of Alaska
IUHMassachusettsBlue-Cross Blue-Shield of Massachusetts
IUIRhode IslandBlue-Cross Blue-Shield of Rhode Island
IUJ-Unallocated/Not Assigned
IUKLouisianaBlue-Cross Blue-Shield of Louisiana
IULMaryland/District of Columbia/Northern VirginiaCarefirst Blue-Cross Blue-Shield
IUMMassachusettsBlue-Cross Blue-Shield of Massachusetts
IUN-Unallocated/Not Assigned
IUONew YorkEmpire Blue-Cross Blue-Shield of New York
IUPConnecticutAnthem Blue-Cross Blue-Shield of Connecticut
IUQMaryland/District of Columbia/Northern VirginiaCarefirst Blue-Cross Blue-Shield
IURPennsylvaniaIndependence Blue-Cross of Philadelphia and Southeastern Pennsylvania
IUSPennsylvaniaIndependence Blue-Cross of Philadelphia and Southeastern Pennsylvania
IUTOhioAnthem Blue-Cross Blue-Shield of Ohio
IUU-Unallocated/Not Assigned
IUVOregon/Idaho/Utah/WashingtonRegence Blue-Cross Blue-Shield
IUWOhioAnthem Blue-Cross Blue-Shield of Ohio
IUX-Unallocated/Not Assigned
IUYGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IUZ-Unallocated/Not Assigned
IVA-Unallocated/Not Assigned
IVBMichiganBlue-Cross Blue-Shield of Michigan
IVCKansas CityBlue-Cross Blue-Shield of Kansas City
IVD-Unallocated/Not Assigned
IVECaliforniaBlue-Shield of California
IVFTennesseeBlue-Cross Blue-Shield of Tennessee
IVG-Unallocated/Not Assigned
IVHRhode IslandBlue-Cross Blue-Shield of Rhode Island
IVILouisianaBlue-Cross Blue-Shield of Louisiana
IVJWisconsinAnthem Blue-Cross Blue-Shield of Wisconsin
IVKMississippiBlue-Cross Blue-Shield of Mississippi
IVL-Unallocated/Not Assigned
IVM-Unallocated/Not Assigned
IVNTennesseeBlue-Cross Blue-Shield of Tennessee
IVO-Unallocated/Not Assigned
IVPMichiganBlue-Cross Blue-Shield of Michigan
IVQ-Unallocated/Not Assigned
IVRArizonaBlue-Cross Blue-Shield of Arizona
IVSCaliforniaAnthem Blue-Cross
IVTSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IVUFloridaFlorida-Blue
IVVPennsylvaniaHighmark Blue-Cross Blue-Shield of Pennsylvania
IVWWisconsinAnthem Blue-Cross Blue-Shield of Wisconsin
IVXOhioAnthem Blue-Cross Blue-Shield of Ohio
IVYRhode IslandBlue-Cross Blue-Shield of Rhode Island
IVZIndianaAnthem Blue-Cross Blue-Shield of Indiana
IWA BCBS PrefixIndianaAnthem Blue-Cross Blue-Shield of Indiana
IWB-Unallocated/Not Assigned
IWCVirginiaAnthem Blue-Cross Blue-Shield of Virginia
IWDMaryland/District of Columbia/Northern VirginiaCarefirst Blue-Cross Blue-Shield
IWESouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IWFNew YorkEmpire Blue-Cross Blue-Shield of New York
IWGNew YorkExcellus Blue-Cross Blue-Shield of New York
IWHMaryland/District of Columbia/Northern VirginiaCarefirst Blue-Cross Blue-Shield
IWIGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IWJIndianaAnthem Blue-Cross Blue-Shield of Indiana
IWKMichiganBlue-Cross Blue-Shield of Michigan
IWLGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IWM-Unallocated/Not Assigned
IWNOhioAnthem Blue-Cross Blue-Shield of Ohio
IWOMissouriAnthem Blue-Cross Blue-Shield of Missouri
IWPMichiganBlue-Cross Blue-Shield of Michigan
IWQGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IWRConnecticutAnthem Blue-Cross Blue-Shield of Connecticut
IWSSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IWTPennsylvaniaCapital Blue-Cross of Pennsylvania
IWUVirginiaAnthem Blue-Cross Blue-Shield of Virginia
IWVKansas CityBlue-Cross Blue-Shield of Kansas City
IWWMassachusettsBlue-Cross Blue-Shield of Massachusetts
IWXNew York (Western)Blue-Cross Blue-Shield of Western New York
IWYNew YorkEmpire Blue-Cross Blue-Shield of New York
IWZMichiganBlue-Cross Blue-Shield of Michigan
IXAArkansasArkansas Blue-Cross Blue-Shield
IXBCaliforniaBlue-Shield of California
IXC-Unallocated/Not Assigned
IXD-Unallocated/Not Assigned
IXEOhioAnthem Blue-Cross Blue-Shield of Ohio
IXFIndianaAnthem Blue-Cross Blue-Shield of Indiana
IXGIndianaAnthem Blue-Cross Blue-Shield of Indiana
IXHIndianaAnthem Blue-Cross Blue-Shield of Indiana
IXIFloridaFlorida-Blue
IXJIndianaAnthem Blue-Cross Blue-Shield of Indiana
IXKOhioAnthem Blue-Cross Blue-Shield of Ohio
IXLCaliforniaBlue-Shield of California
IXMCaliforniaBlue-Shield of California
IXNOhioAnthem Blue-Cross Blue-Shield of Ohio
IXOCaliforniaBlue-Shield of California
IXPMissouriAnthem Blue-Cross Blue-Shield of Missouri
IXQSouth CarolinaBlue-Cross Blue-Shield of South Carolina
IXRMichiganBlue-Cross Blue-Shield of Michigan
IXS-Unallocated/Not Assigned
IXT-Unallocated/Not Assigned
IXUPennsylvaniaIndependence Blue-Cross of Philadelphia and Southeastern Pennsylvania
IXV-Unallocated/Not Assigned
IXWMichiganBlue-Cross Blue-Shield of Michigan
IXXOhioAnthem Blue-Cross Blue-Shield of Ohio
IXYOhioAnthem Blue-Cross Blue-Shield of Ohio
IXZ-Unallocated/Not Assigned
IYA-Unallocated/Not Assigned
IYBWisconsinAnthem Blue-Cross Blue-Shield of Wisconsin
IYCPennsylvaniaIndependence Blue-Cross of Philadelphia and Southeastern Pennsylvania
IYDPennsylvaniaCapital Blue-Cross of Pennsylvania
IYE-Unallocated/Not Assigned
IYF-Unallocated/Not Assigned
IYGFloridaFlorida-Blue
IYHKentuckyAnthem Blue-Cross Blue-Shield of Kentucky
IYIMichiganBlue-Cross Blue-Shield of Michigan
IYJKansas CityBlue-Cross Blue-Shield of Kansas City
IYK-Unallocated/Not Assigned
IYLGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IYM-Unallocated/Not Assigned
IYNAlaskaPremera Blue-Cross of Alaska
IYO-Unallocated/Not Assigned
IYPColoradoAnthem Blue-Cross Blue-Shield of Colorado
IYQSouth CarolinaBlue-Cross Blue-Shield of South Carolina
IYRFloridaFlorida-Blue
IYS-Unallocated/Not Assigned
IYT-Unallocated/Not Assigned
IYUMichiganBlue-Cross Blue-Shield of Michigan
IYVMichiganBlue-Cross Blue-Shield of Michigan
IYWPennsylvaniaIndependence Blue-Cross of Philadelphia and Southeastern Pennsylvania
IYXMichiganBlue-Cross Blue-Shield of Michigan
IYYMichiganBlue-Cross Blue-Shield of Michigan
IYZMichiganBlue-Cross Blue-Shield of Michigan
IZAAlabamaBlue-Cross Blue-Shield of Alabama
IZBWisconsinAnthem Blue-Cross Blue-Shield of Wisconsin
IZC-Unallocated/Not Assigned
IZDGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IZEMaryland/District of Columbia/Northern VirginiaCarefirst Blue-Cross Blue-Shield
IZFPennsylvaniaIndependence Blue-Cross of Philadelphia and Southeastern Pennsylvania
IZGMichiganBlue-Cross Blue-Shield of Michigan
IZH-Unallocated/Not Assigned
IZIMichiganBlue-Cross Blue-Shield of Michigan
IZJMichiganBlue-Cross Blue-Shield of Michigan
IZKOhioAnthem Blue-Cross Blue-Shield of Ohio
IZLMichiganBlue-Cross Blue-Shield of Michigan
IZMMichiganBlue-Cross Blue-Shield of Michigan
IZN-Unallocated/Not Assigned
IZOMichiganBlue-Cross Blue-Shield of Michigan
IZPIdahoBlue-Cross of Idaho
IZQ-Unallocated/Not Assigned
IZRMichiganBlue-Cross Blue-Shield of Michigan
IZSMichiganBlue-Cross Blue-Shield of Michigan
IZT-Unallocated/Not Assigned
IZUSouth Dakota/IowaWellmark Blue-Cross Blue-Shield
IZVGeorgiaAnthem Blue-Cross Blue-Shield of Georgia
IZWMichiganBlue-Cross Blue-Shield of Michigan
IZXMichiganBlue-Cross Blue-Shield of Michigan
IZYMichiganBlue-Cross Blue-Shield of Michigan
IZZ-Unallocated/Not Assigned