| D2A | Delaware | Highmark Blue-Cross Blue-Shield of Delaware |
| D2B | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| D2C | Illinois | Blue-Cross Blue-Shield of Illinois |
| D2D | Indiana | Anthem Blue-Cross Blue-Shield of Indiana |
| D2E | Indiana | Anthem Blue-Cross Blue-Shield of Indiana |
| D2F | Delaware | Highmark Blue-Cross Blue-Shield of Delaware |
| D2G | Pennsylvania | Highmark Blue-Shield of Pennsylvania |
| D2H | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| D2I | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| D2J | Delaware | Highmark Blue-Cross Blue-Shield of Delaware |
| D2K | West Virginia | Highmark Blue-Cross Blue-Shield of West Virginia |
| D2L | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| D2M | Delaware | Highmark Blue-Cross Blue-Shield of Delaware |
| D2N | Delaware | Highmark Blue-Cross Blue-Shield of Delaware |
| D2O | - | Unallocated/Not Assigned |
| D2P | Delaware | Highmark Blue-Cross Blue-Shield of Delaware |
| D2Q | Nevada | Anthem Blue-Cross Blue-Shield of Nevada |
| D2R | Illinois | Blue-Cross Blue-Shield of Illinois |
| D2S | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| D2T | Illinois | Blue-Cross Blue-Shield of Illinois |
| D2U | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| D2V | Delaware | Highmark Blue-Cross Blue-Shield of Delaware |
| D2W | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| D2X | West Virginia | Highmark Blue-Cross Blue-Shield of West Virginia |
| D2Y | Delaware | Highmark Blue-Cross Blue-Shield of Delaware |
| D2Z | Pennsylvania | Highmark Blue-Shield of Pennsylvania |
| D3A | California | Anthem Blue-Cross |
| D3B | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| D3C | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| D3D | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| D3E | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| D3F | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| D3G | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| D3H | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| D3I | - | Unallocated/Not Assigned |
| D3J | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| D3K | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin |
| D3L | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin |
| D3M | Vermont | Blue-Cross Blue-Shield of Vermont |
| D3N | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| D3O | - | Unallocated/Not Assigned |
| D3P | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D3Q | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| D3R | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| D3S | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| D3T | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| D3U | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| D3V | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| D3W | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| D3X | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| D3Y | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| D3Z | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin |
| D4A | California | Anthem Blue-Cross |
| D4B | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| D4C | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| D4D | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| D4E | Texas | Blue-Cross Blue-Shield of Texas |
| D4F | California | Anthem Blue-Cross |
| D4G | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| D4H | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| D4I | - | Unallocated/Not Assigned |
| D4J | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| D4K | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| D4L | New York (Northeastern) | Blue-Shield of Northeastern New York |
| D4M | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| D4N | Illinois | Blue-Cross Blue-Shield of Illinois |
| D4O | - | Unallocated/Not Assigned |
| D4P | - | Unallocated/Not Assigned |
| D4Q | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| D4R | Nevada | Anthem Blue-Cross Blue-Shield of Nevada |
| D4S | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| D4T | Nevada | Anthem Blue-Cross Blue-Shield of Nevada |
| D4U | Maine | Anthem Blue-Cross Blue-Shield of Maine |
| D4V | Illinois | Blue-Cross Blue-Shield of Illinois |
| D4W | Maine | Anthem Blue-Cross Blue-Shield of Maine |
| D4X | Maine | Anthem Blue-Cross Blue-Shield of Maine |
| D4Y | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D4Z | Tennessee | Blue-Cross Blue-Shield of Tennessee |
| D5A | California | Anthem Blue-Cross |
| D5B | Texas | Blue-Cross Blue-Shield of Texas |
| D5C | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D5D | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D5E | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D5F | Michigan | Blue-Cross Blue-Shield of Michigan |
| D5G | Michigan | Blue-Cross Blue-Shield of Michigan |
| D5H | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| D5I | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| D5J | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| D5K | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| D5L | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D5M | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| D5N | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| D5O | - | Unallocated/Not Assigned |
| D5P | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| D5Q | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D5R | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D5S | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| D5T | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| D5U | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D5V | Illinois | Blue-Cross Blue-Shield of Illinois |
| D5W | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| D5X | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D5Y | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D5Z | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| D6A | California | Anthem Blue-Cross |
| D6B | Indiana | Anthem Blue-Cross Blue-Shield of Indiana |
| D6C | Texas | Blue-Cross Blue-Shield of Texas |
| D6D | California | Anthem Blue-Cross |
| D6E | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D6F | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D6G | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| D6H | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D6I | Pennsylvania | Capital Blue-Cross of Pennsylvania |
| D6J | Pennsylvania | Independence Blue-Cross |
| D6K | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D6L | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D6M | Illinois | Blue-Cross Blue-Shield of Illinois |
| D6N | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D6O | - | Unallocated/Not Assigned |
| D6P | New York | Empire Blue-Cross Blue-Shield of New York |
| D6Q | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D6R | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| D6S | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D6T | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| D6U | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D6V | Illinois | Blue-Cross Blue-Shield of Illinois |
| D6W | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D6X | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D6Y | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| D6Z | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D7A | California | Anthem Blue-Cross |
| D7B | Indiana | Anthem Blue-Cross Blue-Shield of Indiana |
| D7C | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| D7D | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| D7E | - | Unallocated/Not Assigned |
| D7F | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| D7G | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| D7H | California | Anthem Blue-Cross |
| D7I | - | Unallocated/Not Assigned |
| D7J | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D7K | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| D7L | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| D7M | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut |
| D7N | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| D7O | - | Unallocated/Not Assigned |
| D7P | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D7Q | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| D7R | California | Anthem Blue-Cross |
| D7S | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D7T | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| D7U | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| D7V | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| D7W | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| D7X | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D7Y | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D7Z | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D8A | New York (Western) | Blue-Cross Blue-Shield of Western New York |
| D8B | Indiana | Anthem Blue-Cross Blue-Shield of Indiana |
| D8C | Texas | Blue-Cross Blue-Shield of Texas |
| D8D | California | Anthem Blue-Cross |
| D8E | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D8F | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| D8G | California | Anthem Blue-Cross |
| D8H | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D8I | - | Unallocated/Not Assigned |
| D8J | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D8K | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D8L | Alaska | Premera Blue-Cross of Alaska |
| D8M | Illinois | Blue-Cross Blue-Shield of Illinois |
| D8N | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| D8O | - | Unallocated/Not Assigned |
| D8P | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D8Q | California | Anthem Blue-Cross |
| D8R | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D8S | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D8T | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D8U | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D8V | Georgia | Anthem Blue-Cross Blue-Shield of Georgia |
| D8W | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D8X | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D8Y | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin |
| D8Z | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin |
| D9A | California | Anthem Blue-Cross |
| D9B | Indiana | Anthem Blue-Cross Blue-Shield of Indiana |
| D9C | Minnesota | Blue-Cross Blue-Shield of Minnesota |
| D9D | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D9E | Massachusetts | Blue-Cross Blue-Shield of Massachusetts |
| D9F | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D9G | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| D9H | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| D9I | - | Unallocated/Not Assigned |
| D9J | - | Unallocated/Not Assigned |
| D9K | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D9L | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| D9M | Delaware | Highmark Blue-Cross Blue-Shield of Delaware |
| D9N | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D9O | - | Unallocated/Not Assigned |
| D9P | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D9Q | - | Unallocated/Not Assigned |
| D9R | Illinois | Blue-Cross Blue-Shield of Illinois |
| D9S | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| D9T | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |
| D9U | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D9V | New Jersey | Horizon Blue-Cross Blue-Shield of New Jersey |
| D9W | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D9X | Maryland/District of Columbia/Northern Virginia | Carefirst Blue-Cross Blue-Shield |
| D9Y | Illinois | Blue-Cross Blue-Shield of Illinois |
| D9Z | Missouri | Anthem Blue-Cross Blue-Shield of Missouri |