| F2A | Blue Cross Blue Shield of Illinois |
| F2B | Blue Cross Blue Shield of Texas |
| F2C | Anthem Blue Cross Blue Shield of Wisconsin |
| F2D | Anthem Blue Cross Blue Shield of Wisconsin |
| F2E | Anthem Blue Cross Blue Shield of Wisconsin |
| F2F | Horizon Blue Cross Blue Shield |
| F2G | Regence Blue Cross Blue Shield |
| F2H | Anthem Blue Cross of California |
| F2I | Unassigned Prefix |
| F2J | Unassigned Prefix |
| F2K | Premera Blue Cross |
| F2L | Blue Cross Blue Shield of Illinois |
| F2M | Blue Cross of Idaho |
| F2N | Blue Cross Blue Shield of Illinois |
| F2O | Unassigned Prefix |
| F2P | Anthem Blue Cross of California |
| F2Q | Anthem Blue Cross of California |
| F2R | Carefirst Blue Cross Blue Shield |
| F2S | Blue Cross Blue Shield of Rhode Island |
| F2T | Anthem Blue Cross Blue Shield of Ohio |
| F2U | Anthem Blue Cross Blue Shield of Wisconsin |
| F2V | Regence Blue Cross Blue Shield |
| F2W | Blue Cross Blue Shield of Illinois |
| F2X | Anthem Blue Cross Blue Shield of Wisconsin |
| F2Y | Anthem Blue Cross Blue Shield of Wisconsin |
| F2Z | Unassigned Prefix |
| F3A | Highmark Blue Cross Blue Shield |
| F3B | Premera Blue Cross |
| F3C | Highmark Blue Cross Blue Shield |
| F3D | Highmark Blue Cross Blue Shield |
| F3E | Blue Cross Blue Shield of Texas |
| F3F | Blue Cross Blue Shield of Illinois |
| F3G | Unassigned Prefix |
| F3H | Horizon Blue Cross Blue Shield |
| F3I | Unassigned Prefix |
| F3J | Unassigned Prefix |
| F3K | Blue Cross Blue Shield of Minnesota |
| F3L | Anthem Blue Cross of California |
| F3M | Blue Cross Blue Shield of Illinois |
| F3N | Horizon Blue Cross Blue Shield |
| F3O | Unassigned Prefix |
| F3P | Highmark Blue Shield |
| F3Q | Unassigned Prefix |
| F3R | Unassigned Prefix |
| F3S | Unassigned Prefix |
| F3T | Unassigned Prefix |
| F3U | Horizon Blue Cross Blue Shield |
| F3V | Horizon Blue Cross Blue Shield |
| F3W | Unassigned Prefix |
| F3X | Horizon Blue Cross Blue Shield |
| F3Y | Blue Cross Blue Shield of Illinois |
| F3Z | Anthem Blue Cross Blue Shield of Ohio |
| F4A | Anthem Blue Cross Blue Shield of Virginia |
| F4B | Florida Blue |
| F4C | Blue Cross Blue Shield of Texas |
| F4D | Florida Blue |
| F4E | Unassigned Prefix |
| F4F | Blue Cross Blue Shield of Texas |
| F4G | Blue Cross Blue Shield of Minnesota |
| F4H | Blue Cross of Vermont |
| F4I | Unassigned Prefix |
| F4J | Anthem Blue Cross of California |
| F4K | Anthem Blue Cross Blue Shield of Georgia |
| F4L | Highmark Blue Cross Blue Shield of Western New York |
| F4M | Anthem Blue Cross Blue Shield of Wisconsin |
| F4N | Anthem Blue Cross Blue Shield of Wisconsin |
| F4O | Unassigned Prefix |
| F4P | Blue Cross Blue Shield of Minnesota |
| F4Q | Unassigned Prefix |
| F4R | Anthem Blue Cross Blue Shield of Indiana |
| F4S | Horizon Blue Cross Blue Shield |
| F4T | Blue Cross Blue Shield of Minnesota |
| F4U | Unassigned Prefix |
| F4V | Anthem Blue Cross Blue Shield of Missouri |
| F4W | Florida Blue |
| F4X | Anthem Blue Cross Blue Shield of Missouri |
| F4Y | Empire Blue Cross Blue Shield |
| F4Z | Anthem Blue Cross Blue Shield of Virginia |
| F5A | Blue Cross Blue Shield of Minnesota |
| F5B | Blue Cross Blue Shield of Illinois |
| F5C | Blue Cross Blue Shield of Texas |
| F5D | Anthem Blue Cross of California |
| F5E | Unassigned Prefix |
| F5F | Carefirst Blue Cross Blue Shield |
| F5G | Blue Cross Blue Shield of Illinois |
| F5H | Unassigned Prefix |
| F5I | Unassigned Prefix |
| F5J | Unassigned Prefix |
| F5K | Premera Blue Cross Blue Shield of Alaska |
| F5L | Unassigned Prefix |
| F5M | Anthem Blue Cross Blue Shield of Wisconsin |
| F5N | Anthem Blue Cross Blue Shield of Missouri |
| F5O | Unassigned Prefix |
| F5P | Highmark Blue Shield of Northeastern New York |
| F5Q | Anthem Blue Cross Blue Shield of Missouri |
| F5R | Unassigned Prefix |
| F5S | Unassigned Prefix |
| F5T | Horizon Blue Cross Blue Shield |
| F5U | Unassigned Prefix |
| F5V | Unassigned Prefix |
| F5W | Horizon Blue Cross Blue Shield |
| F5X | Unassigned Prefix |
| F5Y | Unassigned Prefix |
| F5Z | Horizon Blue Cross Blue Shield |
| F6A | Anthem Blue Cross Blue Shield of Indiana |
| F6B | Anthem Blue Cross Blue Shield of Georgia |
| F6C | Carefirst Blue Cross Blue Shield |
| F6D | Carefirst Blue Cross Blue Shield |
| F6E | Unassigned Prefix |
| F6F | Anthem Blue Cross Blue Shield of Connecticut |
| F6G | Blue Cross Blue Shield of Illinois |
| F6H | Unassigned Prefix |
| F6I | Unassigned Prefix |
| F6J | Unassigned Prefix |
| F6K | Unassigned Prefix |
| F6L | Anthem Blue Cross of California |
| F6M | Anthem Blue Cross Blue Shield of Wisconsin |
| F6N | Blue Cross Blue Shield of Michigan |
| F6O | Unassigned Prefix |
| F6P | Unassigned Prefix |
| F6Q | Unassigned Prefix |
| F6R | Unassigned Prefix |
| F6S | Anthem Blue Cross Blue Shield of Missouri |
| F6T | Horizon Blue Cross Blue Shield |
| F6U | Horizon Blue Cross Blue Shield |
| F6V | Horizon Blue Cross Blue Shield |
| F6W | Unassigned Prefix |
| F6X | Blue Cross Blue Shield of Michigan |
| F6Y | Unassigned Prefix |
| F6Z | Unassigned Prefix |
| F7A | Independence Blue Cross |
| F7B | Anthem Blue Cross Blue Shield of Georgia |
| F7C | Regence Blue Cross Blue Shield |
| F7D | Anthem Blue Cross of California |
| F7E | Unassigned Prefix |
| F7F | Blue Cross Blue Shield of Texas |
| F7G | Blue Cross Blue Shield of Illinois |
| F7H | Anthem Blue Cross Blue Shield of Georgia |
| F7I | Unassigned Prefix |
| F7J | Unassigned Prefix |
| F7K | Unassigned Prefix |
| F7L | Anthem Blue Cross Blue Shield of Ohio |
| F7M | Anthem Blue Cross Blue Shield of Wisconsin |
| F7N | Unassigned Prefix |
| F7O | Unassigned Prefix |
| F7P | Blue Cross Blue Shield of Texas |
| F7Q | Unassigned Prefix |
| F7R | Anthem Blue Cross Blue Shield of Georgia |
| F7S | Anthem Blue Cross Blue Shield of Missouri |
| F7T | Unassigned Prefix |
| F7U | Unassigned Prefix |
| F7V | Unassigned Prefix |
| F7W | Blue Cross Blue Shield of Illinois |
| F7X | Unassigned Prefix |
| F7Y | Unassigned Prefix |
| F7Z | Unassigned Prefix |
| F8A | Blue Cross Blue Shield of Illinois |
| F8B | Anthem Blue Cross Blue Shield of Virginia |
| F8C | Anthem Blue Cross of California |
| F8D | Unassigned Prefix |
| F8E | Unassigned Prefix |
| F8F | Blue Cross Blue Shield of Michigan |
| F8G | Blue Cross Blue Shield of Michigan |
| F8H | Unassigned Prefix |
| F8I | Unassigned Prefix |
| F8J | Unassigned Prefix |
| F8K | Unassigned Prefix |
| F8L | Unassigned Prefix |
| F8M | Anthem Blue Cross Blue Shield of Wisconsin |
| F8N | Unassigned Prefix |
| F8O | Unassigned Prefix |
| F8P | Unassigned Prefix |
| F8Q | Unassigned Prefix |
| F8R | Unassigned Prefix |
| F8S | Anthem Blue Cross Blue Shield of Indiana |
| F8T | Blue Cross Blue Shield of Texas |
| F8U | Unassigned Prefix |
| F8V | Unassigned Prefix |
| F8W | Unassigned Prefix |
| F8X | Unassigned Prefix |
| F8Y | Unassigned Prefix |
| F8Z | Unassigned Prefix |
| F9A | Carefirst Blue Cross Blue Shield |
| F9B | Anthem Blue Cross Blue Shield of Ohio |
| F9C | Anthem Blue Cross Blue Shield of Virginia |
| F9D | Anthem Blue Cross Blue Shield of Wisconsin |
| F9E | Unassigned Prefix |
| F9F | Anthem Blue Cross Blue Shield of Virginia |
| F9G | Anthem Blue Cross Blue Shield of Virginia |
| F9H | Highmark Blue Cross Blue Shield |
| F9I | Unassigned Prefix |
| F9J | Anthem Blue Cross Blue Shield of Virginia |
| F9K | Unassigned Prefix |
| F9L | Blue Cross Blue Shield of Minnesota |
| F9M | Anthem Blue Cross Blue Shield of Wisconsin |
| F9N | Anthem Blue Cross Blue Shield of Virginia |
| F9O | Unassigned Prefix |
| F9P | Anthem Blue Cross Blue Shield of Virginia |
| F9Q | Unassigned Prefix |
| F9R | Unassigned Prefix |
| F9S | Anthem Blue Cross Blue Shield of Ohio |
| F9T | Horizon Blue Cross Blue Shield |
| F9U | Unassigned Prefix |
| F9V | Unassigned Prefix |
| F9W | Horizon Blue Cross Blue Shield |
| F9X | Anthem Blue Cross Blue Shield of Ohio |
| F9Y | Unassigned Prefix |
| F9Z | Premera Blue Cross Blue Shield of Alaska |
