| A2A | Blue Cross Blue Shield of Texas |
| A2B | Blue Cross Blue Shield of Texas |
| A2C | Blue Cross Blue Shield of Illinois |
| A2D | Blue Cross Blue Shield of Texas |
| A2E | Blue Cross Blue Shield of Texas |
| A2F | Blue Cross Blue Shield of Texas |
| A2G | Blue Cross Blue Shield of Illinois |
| A2H | Blue Cross Blue Shield of Texas |
| A2I | Capital Blue Cross |
| A2J | Blue Cross Blue Shield of Illinois |
| A2K | Capital Blue Cross |
| A2L | Capital Blue Cross |
| A2M | Capital Blue Cross |
| A2N | Capital Blue Cross |
| A2O | Carefirst Blue Cross Blue Shield |
| A2P | Capital Blue Cross |
| A2Q | Horizon Blue Cross Blue Shield |
| A2R | Capital Blue Cross |
| A2S | Capital Blue Cross |
| A2T | Premera Blue Cross |
| A2U | Highmark Blue Cross Blue Shield |
| A2V | Carefirst Blue Cross Blue Shield |
| A2W | Highmark Blue Cross Blue Shield |
| A2X | Carefirst Blue Cross Blue Shield |
| A2Y | Blue Cross Blue Shield of Texas |
| A2Z | Carefirst Blue Cross Blue Shield |
| A3A | Blue Cross of Massachusetts |
| A3B | Carefirst Blue Cross Blue Shield |
| A3C | Arkansas Blue Cross |
| A3D | Carefirst Blue Cross Blue Shield |
| A3E | Capital Blue Cross |
| A3F | Carefirst Blue Cross Blue Shield |
| A3G | Blue Cross Blue Shield of Illinois |
| A3H | Capital Blue Cross |
| A3I | Capital Blue Cross |
| A3J | Blue Cross Blue Shield of Illinois |
| A3K | Blue Cross Blue Shield of Texas |
| A3L | Highmark Blue Cross Blue Shield |
| A3M | Regence Blue Cross Blue Shield |
| A3N | Blue Cross Blue Shield of Illinois |
| A3O | Carefirst Blue Cross Blue Shield |
| A3P | Blue Cross Blue Shield of Minnesota |
| A3Q | Horizon Blue Cross Blue Shield |
| A3R | Capital Blue Cross |
| A3S | Capital Blue Cross |
| A3T | Blue Cross Blue Shield of Texas |
| A3U | Carefirst Blue Cross Blue Shield |
| A3V | Highmark Blue Cross Blue Shield |
| A3W | Blue Cross Blue Shield of Minnesota |
| A3X | Carefirst Blue Cross Blue Shield |
| A3Y | Blue Cross Blue Shield of Texas |
| A3Z | Horizon Blue Cross Blue Shield |
| A4A | Carefirst Blue Cross Blue Shield |
| A4B | Carefirst Blue Cross Blue Shield |
| A4C | Regence Blue Cross Blue Shield |
| A4D | Blue Cross Blue Shield of Illinois |
| A4E | Capital Blue Cross |
| A4F | Blue Cross Blue Shield of Michigan |
| A4G | Capital Blue Cross |
| A4H | Carefirst Blue Cross Blue Shield |
| A4I | Carefirst Blue Cross Blue Shield |
| A4J | Blue Cross Blue Shield of Illinois |
| A4K | Horizon Blue Cross Blue Shield |
| A4L | Carefirst Blue Cross Blue Shield |
| A4M | Capital Blue Cross |
| A4N | Carefirst Blue Cross Blue Shield |
| A4O | Carefirst Blue Cross Blue Shield |
| A4P | Blue Cross Blue Shield of Illinois |
| A4Q | Capital Blue Cross |
| A4R | Carefirst Blue Cross Blue Shield |
| A4S | Regence Blue Cross Blue Shield |
| A4T | Regence Blue Cross Blue Shield |
| A4U | Carefirst Blue Cross Blue Shield |
| A4V | Carefirst Blue Cross Blue Shield |
| A4W | Carefirst Blue Cross Blue Shield |
| A4X | Carefirst Blue Cross Blue Shield |
| A4Y | Horizon Blue Cross Blue Shield |
| A4Z | Capital Blue Cross |
| A5A | Carefirst Blue Cross Blue Shield |
| A5B | Carefirst Blue Cross Blue Shield |
| A5C | Capital Blue Cross |
| A5D | Carefirst Blue Cross Blue Shield |
| A5E | Capital Blue Cross |
| A5F | Carefirst Blue Cross Blue Shield |
| A5G | Capital Blue Cross |
| A5H | Carefirst Blue Cross Blue Shield |
| A5I | Carefirst Blue Cross Blue Shield |
| A5J | Capital Blue Cross |
| A5K | Carefirst Blue Cross Blue Shield |
| A5L | Blue Cross Blue Shield of Vermont |
| A5M | Regence Blue Cross Blue Shield |
| A5N | Capital Blue Cross |
| A5O | Capital Blue Cross |
| A5P | Carefirst Blue Cross Blue Shield |
| A5Q | Capital Blue Cross |
| A5R | Anthem Blue Cross of California |
| A5S | Blue Cross Blue Shield of Tennessee |
| A5T | Carefirst Blue Cross Blue Shield |
| A5U | Carefirst Blue Cross Blue Shield |
| A5V | Carefirst Blue Cross Blue Shield |
| A5W | Horizon Blue Cross Blue Shield |
| A5X | Unassigned Prefix |
| A5Y | Horizon Blue Cross Blue Shield |
| A5Z | Carefirst Blue Cross Blue Shield |
| A6A | Anthem Blue Cross Blue Shield of Georgia |
| A6B | Carefirst Blue Cross Blue Shield |
| A6C | Regence Blue Cross Blue Shield |
| A6D | Blue Cross Blue Shield of Illinois |
| A6E | Capital Blue Cross |
| A6F | Blue Cross Blue Shield of Illinois |
| A6G | Carefirst Blue Cross Blue Shield |
| A6H | Carefirst Blue Cross Blue Shield |
| A6I | Capital Blue Cross |
| A6J | Capital Blue Cross |
| A6K | Carefirst Blue Cross Blue Shield |
| A6L | Carefirst Blue Cross Blue Shield |
| A6M | Anthem Blue Cross Blue Shield of Virginia |
| A6N | Carefirst Blue Cross Blue Shield |
| A6O | Capital Blue Cross |
| A6P | Blue Cross Blue Shield of Minnesota |
| A6Q | Anthem Blue Cross of California |
| A6R | Carefirst Blue Cross Blue Shield |
| A6S | Carefirst Blue Cross Blue Shield |
| A6T | Carefirst Blue Cross Blue Shield |
| A6U | Capital Blue Cross |
| A6V | Carefirst Blue Cross Blue Shield |
| A6W | Carefirst Blue Cross Blue Shield |
| A6X | Carefirst Blue Cross Blue Shield |
| A6Y | Carefirst Blue Cross Blue Shield |
| A6Z | Anthem Blue Cross Blue Shield of Nevada |
| A7A | Carefirst Blue Cross Blue Shield |
| A7B | Carefirst Blue Cross Blue Shield |
| A7C | Regence Blue Cross Blue Shield |
| A7D | Carefirst Blue Cross Blue Shield |
| A7E | Regence Blue Cross Blue Shield |
| A7F | Carefirst Blue Cross Blue Shield |
| A7G | Blue Cross Blue Shield of Illinois |
| A7H | Carefirst Blue Cross Blue Shield |
| A7I | Carefirst Blue Cross Blue Shield |
| A7J | Capital Blue Cross |
| A7K | Blue Cross Blue Shield of Illinois |
| A7L | Anthem Blue Cross Blue Shield of Indiana |
| A7M | Blue Cross Blue Shield of Illinois |
| A7N | Carefirst Blue Cross Blue Shield |
| A7O | Carefirst Blue Cross Blue Shield |
| A7P | Capital Blue Cross |
| A7Q | Carefirst Blue Cross Blue Shield |
| A7R | Carefirst Blue Cross Blue Shield |
| A7S | Blue Cross of Massachusetts |
| A7T | Blue Cross Blue Shield of Vermont |
| A7U | Carefirst Blue Cross Blue Shield |
| A7V | Carefirst Blue Cross Blue Shield |
| A7W | Carefirst Blue Cross Blue Shield |
| A7X | Blue Cross Blue Shield of North Dakota |
| A7Y | Carefirst Blue Cross Blue Shield |
| A7Z | Anthem Blue Cross Blue Shield of Virginia |
| A8A | Blue Cross Blue Shield of Minnesota |
| A8B | Blue Cross Blue Shield of Illinois |
| A8C | Blue Cross Blue Shield of Illinois |
| A8D | Anthem Blue Cross of California |
| A8E | Carefirst Blue Cross Blue Shield |
| A8F | Highmark Blue Shield |
| A8G | Anthem Blue Cross of California |
| A8H | Carefirst Blue Cross Blue Shield |
| A8I | Anthem Blue Cross Blue Shield of Connecticut |
| A8J | Carefirst Blue Cross Blue Shield |
| A8K | Highmark Blue Cross Blue Shield |
| A8L | Highmark Blue Cross Blue Shield |
| A8M | Anthem Blue Cross Blue Shield of Virginia |
| A8N | Carefirst Blue Cross Blue Shield |
| A8O | Anthem Blue Cross Blue Shield of Connecticut |
| A8P | Capital Blue Cross |
| A8Q | Anthem Blue Cross Blue Shield of Connecticut |
| A8R | Blue Cross Blue Shield of Texas |
| A8S | Anthem Blue Cross Blue Shield of Connecticut |
| A8T | Blue Cross Blue Shield of Illinois |
| A8U | Anthem Blue Cross Blue Shield of Connecticut |
| A8V | Anthem Blue Cross Blue Shield of Connecticut |
| A8W | Carefirst Blue Cross Blue Shield |
| A8X | Carefirst Blue Cross Blue Shield |
| A8Y | Anthem Blue Cross Blue Shield of Connecticut |
| A8Z | Anthem Blue Cross Blue Shield of Connecticut |
| A9A | Anthem Blue Cross Blue Shield of Connecticut |
| A9B | Regence Blue Cross Blue Shield |
| A9C | Anthem Blue Cross Blue Shield of Connecticut |
| A9D | Blue Cross Blue Shield of Minnesota |
| A9E | Blue Cross Blue Shield of Illinois |
| A9F | Blue Cross Blue Shield of Minnesota |
| A9G | Regence Blue Cross Blue Shield |
| A9H | Blue Cross Blue Shield of Minnesota |
| A9I | Anthem Blue Cross Blue Shield of Wisconsin |
| A9J | Carefirst Blue Cross Blue Shield |
| A9K | Blue Cross Blue Shield of Minnesota |
| A9L | Blue Cross Blue Shield of Minnesota |
| A9M | Anthem Blue Cross Blue Shield of Colorado |
| A9N | Blue Cross Blue Shield of Minnesota |
| A9O | Anthem Blue Cross Blue Shield of Virginia |
| A9P | Premera Blue Cross Blue Shield of Alaska |
| A9Q | Anthem Blue Cross of California |
| A9R | Carefirst Blue Cross Blue Shield |
| A9S | Carefirst Blue Cross Blue Shield |
| A9T | Anthem Blue Cross Blue Shield of Virginia |
| A9U | Anthem Blue Cross of California |
| A9V | Blue Cross Blue Shield of Illinois |
| A9W | Blue Cross of Massachusetts |
| A9X | Blue Cross Blue Shield of Texas |
| A9Y | Anthem Blue Cross of California |
| A9Z | Highmark Blue Cross Blue Shield |
