| H2A | Blue Cross Blue Shield of Illinois |
| H2B | Blue Cross Blue Shield of Western New York |
| H2C | Blue Cross Blue Shield of Illinois |
| H2D | Blue Cross Blue Shield of Illinois |
| H2E | Blue Cross Blue Shield of Illinois |
| H2F | Anthem Blue Cross Blue Shield of Indiana |
| H2G | Blue Cross Blue Shield of Texas |
| H2H | Arkansas Blue Cross |
| H2I | Unassigned Prefix |
| H2J | Blue Cross Blue Shield of Illinois |
| H2K | Blue Cross Blue Shield of Illinois |
| H2L | Anthem Blue Cross Blue Shield of Indiana |
| H2M | Anthem Blue Cross Blue Shield of Virginia |
| H2N | Horizon Blue Cross Blue Shield |
| H2O | Highmark Blue Cross Blue Shield |
| H2P | Blue Cross Blue Shield of Illinois |
| H2Q | Anthem Blue Cross Blue Shield of Virginia |
| H2R | Blue Cross Blue Shield of Western New York |
| H2S | Anthem Blue Cross Blue Shield of Indiana |
| H2T | Blue Cross Blue Shield of Western New York |
| H2U | Anthem Blue Cross Blue Shield of Indiana |
| H2V | Carefirst Blue Cross Blue Shield |
| H2W | Horizon Blue Cross Blue Shield |
| H2X | Blue Cross of Massachusetts |
| H2Y | Horizon Blue Cross Blue Shield |
| H2Z | Horizon Blue Cross Blue Shield |
| H3A | Highmark Blue Cross Blue Shield |
| H3B | Highmark Blue Cross Blue Shield |
| H3C | Anthem Blue Cross Blue Shield of Virginia |
| H3D | Blue Cross Blue Shield of Illinois |
| H3E | Highmark Blue Cross Blue Shield |
| H3F | Anthem Blue Cross Blue Shield of Virginia |
| H3G | Premera Blue Cross Blue Shield of Alaska |
| H3H | Anthem Blue Cross Blue Shield of Virginia |
| H3I | Highmark Blue Cross Blue Shield |
| H3J | Anthem Blue Cross Blue Shield of Virginia |
| H3K | Anthem Blue Cross Blue Shield of Virginia |
| H3L | Highmark Blue Cross Blue Shield |
| H3M | Blue Cross Blue Shield of Texas |
| H3N | Anthem Blue Cross of California |
| H3O | Unassigned Prefix |
| H3P | Highmark Blue Cross Blue Shield |
| H3Q | Highmark Blue Cross Blue Shield |
| H3R | Blue Cross Blue Shield of Illinois |
| H3S | Horizon Blue Cross Blue Shield |
| H3T | Blue Cross Blue Shield of Western New York |
| H3U | Blue Cross Blue Shield of Illinois |
| H3V | Blue Cross Blue Shield of Illinois |
| H3W | Anthem Blue Cross Blue Shield of Virginia |
| H3X | Blue Cross Blue Shield of Illinois |
| H3Y | Blue Cross Blue Shield of Illinois |
| H3Z | Anthem Blue Cross Blue Shield of Virginia |
| H4A | Blue Cross Blue Shield of Illinois |
| H4B | Blue Cross Blue Shield of Illinois |
| H4C | Anthem Blue Cross Blue Shield of Virginia |
| H4D | Blue Cross Blue Shield of Illinois |
| H4E | Blue Cross Blue Shield of Illinois |
| H4F | Highmark Blue Cross Blue Shield |
| H4G | Anthem Blue Cross of California |
| H4H | Blue Cross Blue Shield of Rhode Island |
| H4I | Highmark Blue Shield of Northeastern New York |
| H4J | Highmark Blue Cross Blue Shield |
| H4K | Highmark Blue Cross Blue Shield |
| H4L | Highmark Blue Cross Blue Shield |
| H4M | Anthem Blue Cross Blue Shield of Virginia |
| H4N | Anthem Blue Cross of California |
| H4O | Anthem Blue Cross of California |
| H4P | Blue Cross Blue Shield of Western New York |
| H4Q | Blue Cross Blue Shield of Alabama |
| H4R | Anthem Blue Cross Blue Shield of Colorado |
| H4S | Anthem Blue Cross Blue Shield of Indiana |
| H4T | Blue Cross Blue Shield of Texas |
| H4U | Blue Cross Blue Shield of Illinois |
| H4V | Blue Cross Blue Shield of Texas |
| H4W | Anthem Blue Cross Blue Shield of Georgia |
| H4X | Anthem Blue Cross Blue Shield of Wisconsin |
| H4Y | Blue Cross Blue Shield of Illinois |
| H4Z | Horizon Blue Cross Blue Shield |
| H5A | Anthem Blue Cross of California |
| H5B | Blue Cross Blue Shield of Texas |
| H5C | Horizon Blue Cross Blue Shield |
| H5D | Blue Cross Blue Shield of Texas |
| H5E | Blue Cross Blue Shield of Texas |
| H5F | Blue Cross Blue Shield of Texas |
| H5G | Anthem Blue Cross Blue Shield of Virginia |
| H5H | Blue Cross Blue Shield of Texas |
| H5I | Unassigned Prefix |
| H5J | Blue Cross Blue Shield of Texas |
| H5K | Horizon Blue Cross Blue Shield |
| H5L | Blue Cross Blue Shield of Illinois |
| H5M | Anthem Blue Cross Blue Shield of Virginia |
| H5N | Anthem Blue Cross Blue Shield of Virginia |
| H5O | Unassigned Prefix |
| H5P | Anthem Blue Cross of California |
| H5Q | Anthem Blue Cross of California |
| H5R | Horizon Blue Cross Blue Shield |
| H5S | Highmark Blue Cross Blue Shield of Wester New York |
| H5T | Anthem Blue Cross Blue Shield of Virginia |
| H5U | Anthem Blue Cross of California |
| H5V | Anthem Blue Cross Blue Shield of Virginia |
| H5W | Anthem Blue Cross Blue Shield of Georgia |
| H5X | Blue Cross Blue Shield of Illinois |
| H5Y | Blue Cross Blue Shield of Illinois |
| H5Z | Unassigned Prefix |
| H6A | Blue Cross Blue Shield of Illinois |
| H6B | Empire Blue Cross Blue Shield |
| H6C | Anthem Blue Cross Blue Shield of Virginia |
| H6D | Anthem Blue Cross of California |
| H6E | Carefirst Blue Cross Blue Shield |
| H6F | Empire Blue Cross Blue Shield |
| H6G | Anthem Blue Cross of California |
| H6H | Regence Blue Cross Blue Shield |
| H6I | Anthem Blue Cross Blue Shield of Indiana |
| H6J | Highmark Blue Cross Blue Shield of Delaware |
| H6K | Empire Blue Cross Blue Shield |
| H6L | Highmark Blue Shield |
| H6M | Premera Blue Cross Blue Shield of Alaska |
| H6N | Anthem Blue Cross Blue Shield of Virginia |
| H6O | Unassigned Prefix |
| H6P | Blue Cross of Massachusetts |
| H6Q | Anthem Blue Cross Blue Shield of Ohio |
| H6R | Anthem Blue Cross of California |
| H6S | Anthem Blue Cross Blue Shield of Connecticut |
| H6T | Anthem Blue Cross Blue Shield of Connecticut |
| H6U | Highmark Blue Cross Blue Shield |
| H6V | Highmark Blue Cross Blue Shield of Delaware |
| H6W | Anthem Blue Cross Blue Shield of Georgia |
| H6X | Anthem Blue Cross of California |
| H6Y | Blue Cross Blue Shield of Illinois |
| H6Z | Horizon Blue Cross Blue Shield |
| H7A | Blue Cross Blue Shield of Illinois |
| H7B | Horizon Blue Cross Blue Shield |
| H7C | Blue Cross Blue Shield of Illinois |
| H7D | Blue Cross Blue Shield of Illinois |
| H7E | Anthem Blue Cross Blue Shield of Indiana |
| H7F | Blue Cross Blue Shield of Rhode Island |
| H7G | Regence Blue Cross Blue Shield |
| H7H | Anthem Blue Cross Blue Shield of Indiana |
| H7I | Unassigned Prefix |
| H7J | Horizon Blue Cross Blue Shield |
| H7K | Anthem Blue Cross Blue Shield of Indiana |
| H7L | Anthem Blue Cross Blue Shield of Indiana |
| H7M | Blue Cross Blue Shield of Michigan |
| H7N | Blue Cross Blue Shield of Michigan |
| H7O | Unassigned Prefix |
| H7P | Horizon Blue Cross Blue Shield |
| H7Q | Highmark Blue Shield |
| H7R | Blue Cross of Vermont |
| H7S | Highmark Blue Shield |
| H7T | Blue Cross Blue Shield of Texas |
| H7U | Highmark Blue Shield |
| H7V | Anthem Blue Cross Blue Shield of Indiana |
| H7W | Anthem Blue Cross Blue Shield of Indiana |
| H7X | Unassigned Prefix |
| H7Y | Unassigned Prefix |
| H7Z | Horizon Blue Cross Blue Shield |
| H8A | Anthem Blue Cross Blue Shield of Virginia |
| H8B | Blue Cross Blue Shield of Illinois |
| H8C | Anthem Blue Cross Blue Shield of Colorado |
| H8D | Blue Cross Blue Shield of Illinois |
| H8E | Regence Blue Cross Blue Shield |
| H8F | Highmark Blue Shield |
| H8G | Anthem Blue Cross Blue Shield of Georgia |
| H8H | Anthem Blue Cross Blue Shield of Ohio |
| H8I | Anthem Blue Cross Blue Shield of Indiana |
| H8J | Highmark Blue Cross Blue Shield |
| H8K | Blue Cross Blue Shield of Illinois |
| H8L | Blue Cross Blue Shield of Illinois |
| H8M | Empire Blue Cross Blue Shield |
| H8N | Anthem Blue Cross Blue Shield of Nevada |
| H8O | Unassigned Prefix |
| H8P | Anthem Blue Cross of California |
| H8Q | Unassigned Prefix |
| H8R | Anthem Blue Cross Blue Shield of Missouri |
| H8S | Florida Blue |
| H8T | Anthem Blue Cross of California |
| H8U | Blue Cross Blue Shield of Illinois |
| H8V | Anthem Blue Cross Blue Shield of Virginia |
| H8W | Anthem Blue Cross Blue Shield of Wisconsin |
| H8X | Anthem Blue Cross of California |
| H8Y | Anthem Blue Cross Blue Shield of Kentucky |
| H8Z | Horizon Blue Cross Blue Shield |
| H9A | Anthem Blue Cross of California |
| H9B | Regence Blue Cross Blue Shield |
| H9C | Blue Cross Blue Shield of Illinois |
| H9D | Anthem Blue Cross Blue Shield of New Hampshire |
| H9E | Anthem Blue Cross Blue Shield of Missouri |
| H9F | Anthem Blue Cross Blue Shield of Virginia |
| H9G | Anthem Blue Cross Blue Shield of Georgia |
| H9H | Anthem Blue Cross Blue Shield of Ohio |
| H9I | Anthem Blue Cross Blue Shield of Indiana |
| H9J | Blue Cross Blue Shield of Minnesota |
| H9K | Blue Cross Blue Shield of Illinois |
| H9L | Blue Cross Blue Shield of Illinois |
| H9M | Anthem Blue Cross Blue Shield of Missouri |
| H9N | Empire Blue Cross Blue Shield |
| H9O | Unassigned Prefix |
| H9P | Anthem Blue Cross Blue Shield of Georgia |
| H9Q | Anthem Blue Cross of California |
| H9R | Blue Cross Blue Shield of Minnesota |
| H9S | Carefirst Blue Cross Blue Shield |
| H9T | Blue Cross of Vermont |
| H9U | Blue Cross Blue Shield of Illinois |
| H9V | Anthem Blue Cross Blue Shield of Virginia |
| H9W | Anthem Blue Cross Blue Shield of Wisconsin |
| H9X | Anthem Blue Cross Blue Shield of Missouri |
| H9Y | Anthem Blue Cross Blue Shield of Kentucky |
| H9Z | Anthem Blue Cross of California |
