| G2A | Regence Blue Cross Blue Shield |
| G2B | Blue Cross Blue Shield of Western New York |
| G2C | Blue Cross Blue Shield of Rhode Island |
| G2D | Anthem Blue Cross Blue Shield of Colorado |
| G2E | Blue Cross Blue Shield of Illinois |
| G2F | Blue Cross Blue Shield of Illinois |
| G2G | Anthem Blue Cross Blue Shield of Virginia |
| G2H | Highmark Blue Shield |
| G2I | Unassigned Prefix |
| G2J | Blue Cross Blue Shield of Texas |
| G2K | Blue Cross Blue Shield of Illinois |
| G2L | Anthem Blue Cross of California |
| G2M | Anthem Blue Cross Blue Shield of Virginia |
| G2N | Independence Blue Cross |
| G2O | Unassigned Prefix |
| G2P | Regence Blue Cross Blue Shield |
| G2Q | Anthem Blue Cross of California |
| G2R | Blue Cross Blue Shield of Illinois |
| G2S | Anthem Blue Cross of California |
| G2T | Independence Blue Cross |
| G2U | Anthem Blue Cross of California |
| G2V | Independence Blue Cross |
| G2W | Blue Cross Blue Shield of Illinois |
| G2X | Blue Cross Blue Shield of Texas |
| G2Y | Anthem Blue Cross Blue Shield of Connecticut |
| G2Z | Anthem Blue Cross of California |
| G3A | Regence Blue Cross Blue Shield |
| G3B | Highmark Blue Cross Blue Shield |
| G3C | Regence Blue Cross Blue Shield |
| G3D | Highmark Blue Cross Blue Shield |
| G3E | Highmark Blue Cross Blue Shield |
| G3F | Anthem Blue Cross Blue Shield of Virginia |
| G3G | Anthem Blue Cross Blue Shield of Missouri |
| G3H | Blue Cross Blue Shield of Texas |
| G3I | Anthem Blue Cross of California |
| G3J | Anthem Blue Cross Blue Shield of Virginia |
| G3K | Blue Cross Blue Shield of Minnesota |
| G3L | Blue Cross Blue Shield of Illinois |
| G3M | Anthem Blue Cross Blue Shield of Virginia |
| G3N | Anthem Blue Cross Blue Shield of Virginia |
| G3O | Unassigned Prefix |
| G3P | Anthem Blue Cross Blue Shield of Virginia |
| G3Q | Anthem Blue Cross Blue Shield of Georgia |
| G3R | Regence Blue Cross Blue Shield |
| G3S | Anthem Blue Cross of California |
| G3T | Blue Shield of Northeastern New York |
| G3U | Blue Cross Blue Shield of Michigan |
| G3V | Regence Blue Cross Blue Shield |
| G3W | Anthem Blue Cross Blue Shield of Virginia |
| G3X | Blue Cross Blue Shield of Michigan |
| G3Y | Horizon Blue Cross Blue Shield |
| G3Z | Anthem Blue Cross Blue Shield of Virginia |
| G4A | Unassigned Prefix |
| G4B | Anthem Blue Cross Blue Shield of Indiana |
| G4C | Blue Cross Blue Shield of Illinois |
| G4D | Anthem Blue Cross Blue Shield of Georgia |
| G4E | Anthem Blue Cross Blue Shield of Indiana |
| G4F | Regence Blue Cross Blue Shield |
| G4G | Anthem Blue Cross Blue Shield of Georgia |
| G4H | Blue Cross Blue Shield of Texas |
| G4I | Unassigned Prefix |
| G4J | Anthem Blue Cross Blue Shield of Indiana |
| G4K | Anthem Blue Cross Blue Shield of Virginia |
| G4L | Anthem Blue Cross Blue Shield of Indiana |
| G4M | Carefirst Blue Cross Blue Shield |
| G4N | Anthem Blue Cross Blue Shield of Virginia |
| G4O | Unassigned Prefix |
| G4P | Anthem Blue Cross Blue Shield of Georgia |
| G4Q | Anthem Blue Cross Blue Shield of Indiana |
| G4R | Anthem Blue Cross Blue Shield of Indiana |
| G4S | Anthem Blue Cross Blue Shield of Indiana |
| G4T | Blue Cross Blue Shield of Illinois |
| G4U | Anthem Blue Cross Blue Shield of Indiana |
| G4V | Anthem Blue Cross Blue Shield of Georgia |
| G4W | Unassigned Prefix |
| G4X | Anthem Blue Cross Blue Shield of Indiana |
| G4Y | Anthem Blue Cross Blue Shield of Georgia |
| G4Z | Anthem Blue Cross Blue Shield of Indiana |
| G5A | Blue Cross Blue Shield of Minnesota |
| G5B | Anthem Blue Cross Blue Shield of Ohio |
| G5C | Blue Cross Blue Shield of Texas |
| G5D | Blue Cross Blue Shield of Texas |
| G5E | Blue Cross Blue Shield of Texas |
| G5F | Blue Cross Blue Shield of Texas |
| G5G | Blue Cross Blue Shield of Texas |
| G5H | Blue Cross Blue Shield of Texas |
| G5I | Unassigned Prefix |
| G5J | Blue Cross Blue Shield of Illinois |
| G5K | Blue Cross Blue Shield of Texas |
| G5L | Highmark Blue Cross Blue Shield |
| G5M | Blue Cross Blue Shield of Texas |
| G5N | Blue Cross Blue Shield of Western New York |
| G5O | Unassigned Prefix |
| G5P | Anthem Blue Cross Blue Shield of Indiana |
| G5Q | Anthem Blue Cross Blue Shield of Georgia |
| G5R | Blue Cross Blue Shield of Massachusetts |
| G5S | Anthem Blue Cross of California |
| G5T | Blue Cross Blue Shield of Illinois |
| G5U | Unassigned Prefix |
| G5V | Anthem Blue Cross Blue Shield of Georgia |
| G5W | Unassigned Prefix |
| G5X | Anthem Blue Cross Blue Shield of Virginia |
| G5Y | Unassigned Prefix |
| G5Z | Carefirst Blue Cross Blue Shield |
| G6A | Anthem Blue Cross Blue Shield of Virginia |
| G6B | Anthem Blue Cross Blue Shield of Georgia |
| G6C | Anthem Blue Cross Blue Shield of Virginia |
| G6D | Highmark Blue Cross Blue Shield |
| G6E | Empire Blue Cross Blue Shield |
| G6F | Regence Blue Cross Blue Shield |
| G6G | Anthem Blue Cross Blue Shield of Wisconsin |
| G6H | Blue Cross Blue Shield of Texas |
| G6I | Unassigned Prefix |
| G6J | Unassigned Prefix |
| G6K | Blue Cross Blue Shield of Illinois |
| G6L | Regence Blue Cross Blue Shield |
| G6M | Anthem Blue Cross Blue Shield of Georgia |
| G6N | Anthem Blue Cross Blue Shield of Virginia |
| G6O | Unassigned Prefix |
| G6P | Anthem Blue Cross of California |
| G6Q | Anthem Blue Cross Blue Shield of Georgia |
| G6R | Blue Cross Blue Shield of Illinois |
| G6S | Anthem Blue Cross Blue Shield of Indiana |
| G6T | Blue Cross Blue Shield of Illinois |
| G6U | Unassigned Prefix |
| G6V | Unassigned Prefix |
| G6W | Horizon Blue Cross Blue Shield |
| G6X | Unassigned Prefix |
| G6Y | Unassigned Prefix |
| G6Z | Unassigned Prefix |
| G7A | Blue Cross of Massachusetts |
| G7B | Carefirst Blue Cross Blue Shield |
| G7C | Anthem Blue Cross Blue Shield of Virginia |
| G7D | Highmark Blue Cross Blue Shield |
| G7E | Regence Blue Cross Blue Shield |
| G7F | Anthem Blue Cross Blue Shield of Georgia |
| G7G | Unassigned Prefix |
| G7H | Blue Cross Blue Shield of Texas |
| G7I | Unassigned Prefix |
| G7J | Unassigned Prefix |
| G7K | Unassigned Prefix |
| G7L | Unassigned Prefix |
| G7M | Regence Blue Cross Blue Shield |
| G7N | Unassigned Prefix |
| G7O | Unassigned Prefix |
| G7P | Blue Cross Blue Shield of Western New York |
| G7Q | Unassigned Prefix |
| G7R | Highmark Blue Cross Blue Shield |
| G7S | Anthem Blue Cross Blue Shield of Indiana |
| G7T | Blue Cross Blue Shield of Illinois |
| G7U | Unassigned Prefix |
| G7V | Unassigned Prefix |
| G7W | Anthem Blue Cross of California |
| G7X | Unassigned Prefix |
| G7Y | Unassigned Prefix |
| G7Z | Unassigned Prefix |
| G8A | Anthem Blue Cross Blue Shield of Colorado |
| G8B | Anthem Blue Cross of California |
| G8C | Blue Cross Blue Shield of Illinois |
| G8D | Unassigned Prefix |
| G8E | Unassigned Prefix |
| G8F | Blue Cross Blue Shield of Montana |
| G8G | Anthem Blue Cross Blue Shield of Georgia |
| G8H | Blue Cross Blue Shield of Texas |
| G8I | Unassigned Prefix |
| G8J | Unassigned Prefix |
| G8K | Unassigned Prefix |
| G8L | Unassigned Prefix |
| G8M | Blue Cross Blue Shield of Texas |
| G8N | Unassigned Prefix |
| G8O | Unassigned Prefix |
| G8P | Anthem Blue Cross Blue Shield of Georgia |
| G8Q | Unassigned Prefix |
| G8R | Anthem Blue Cross Blue Shield of Georgia |
| G8S | Blue Cross Blue Shield of Illinois |
| G8T | Blue Cross Blue Shield of Illinois |
| G8U | Regence Blue Cross Blue Shield |
| G8V | Unassigned Prefix |
| G8W | Unassigned Prefix |
| G8X | Unassigned Prefix |
| G8Y | Unassigned Prefix |
| G8Z | Unassigned Prefix |
| G9A | Blue Cross Blue Shield of Minnesota |
| G9B | Anthem Blue Cross Blue Shield of Georgia |
| G9C | Anthem Blue Cross Blue Shield of Missouri |
| G9D | Unassigned Prefix |
| G9E | Unassigned Prefix |
| G9F | Anthem Blue Cross of California |
| G9G | Anthem Blue Cross of California |
| G9H | Anthem Blue Cross Blue Shield of Virginia |
| G9I | Unassigned Prefix |
| G9J | Unassigned Prefix |
| G9K | Unassigned Prefix |
| G9L | Unassigned Prefix |
| G9M | Blue Cross Blue Shield of Massachusetts |
| G9N | Empire Blue Cross Blue Shield |
| G9O | Unassigned Prefix |
| G9P | Premera Blue Cross Blue Shield of Alaska |
| G9Q | Unassigned Prefix |
| G9R | Anthem Blue Cross of California |
| G9S | Unassigned Prefix |
| G9T | Anthem Blue Cross Blue Shield of Virginia |
| G9U | Unassigned Prefix |
| G9V | Unassigned Prefix |
| G9W | Anthem Blue Cross of California |
| G9X | Anthem Blue Cross of California |
| G9Y | Unassigned Prefix |
| G9Z | Unassigned Prefix |
