| L2A | Empire BCBS |
| L2B | Capital Blue Cross |
| L2C | Highmark Blue Cross blue Shield |
| L2D | Highmark Blue Cross blue Shield |
| L2E | Independence Blue Cross |
| L2F | Regence BCBS |
| L2G | Highmark Blue Shield |
| L2H | BCBS of Illionois |
| L2I | Anthem Blue Cross of California |
| L2J | Unassigned prefix |
| L2K | Blue Cross Blue Shield of Illinois |
| L2L | Blue Cross Blue Shield of Illinois |
| L2M | Blue Cross Blue Shield of Minnesota |
| L2N | Blue Cross Blue Shield of Illinois |
| L2O | Anthem Blue Cross Blue Shield of Virginia |
| L2P | Blue Shield of Northeastern New York |
| L2Q | Anthem Blue Cross Blue Shield of Georgia |
| L2R | Blue Cross Blue Shield of Illinois |
| L2S | Premera Blue Cross |
| L2T | Anthem Blue Cross of California |
| L2U | Anthem Blue Cross Blue Shield of Virginia |
| L2V | Anthem Blue Cross Blue Shield of Georgia |
| L2W | Blue Cross Blue Shield of Minnesota |
| L2X | Anthem Blue Cross Blue Shield of Ohio |
| L2Y | Anthem Blue Cross Blue Shield of Connecticut |
| L2Z | Anthem Blue Cross of California |
| L3A | Blue Cross Blue Shield of Texas |
| L3B | Blue Cross Blue Shield of Illinois |
| L3C | Blue Cross Blue Shield of Texas |
| L3D | Anthem Blue Cross of California |
| L3E | Highmark Blue Shield |
| L3F | Blue Cross Blue Shield of Illinois |
| L3G | Anthem Blue Cross of California |
| L3H | Blue Cross Blue Shield of Illinois |
| L3I | Unassigned prefix |
| L3J | Carefirst Blue Cross Blue Shield |
| L3K | Blue Cross Blue Shield of Illinois |
| L3L | Blue Cross Blue Shield of Illinois |
| L3M | Premera Blue Cross |
| L3N | Anthem Blue Cross of California |
| L3O | Unassigned prefix |
| L3P | Highmark Blue Cross Blue Shield of Western New York |
| L3Q | Unassigned prefix |
| L3R | Blue Cross Blue Shield of Texas |
| L3S | Blue Cross Blue Shield of Illinois |
| L3T | Blue Cross Blue Shield of Massachusetts |
| L3U | Anthem Blue Cross of California |
| L3V | Anthem Blue Cross Blue Shield of Ohio |
| L3W | Blue Cross Blue Shield of Alabama |
| L3X | Blue Cross Blue Shield of Minnesota |
| L3Y | Anthem Blue Cross of California |
| L3Z | Anthem Blue Cross Blue Shield of Ohio |
| L4A | Empire Blue Cross Blue Shield of New York |
| L4B | Blue Cross Blue Shield of Illinois |
| L4C | Anthem Blue Cross of California |
| L4D | Premera Blue Cross |
| L4E | Anthem Blue Cross Blue Shield of Wisconsin |
| L4F | Empire Blue Cross Blue Shield of New York |
| L4G | Anthem Blue Cross Blue Shield of Ohio |
| L4H | Anthem Blue Cross of California |
| L4I | Unassigned prefix |
| L4J | Unassigned prefix |
| L4K | Blue Cross Blue Shield of Illinois |
| L4L | Blue Cross Blue Shield of Illinois |
| L4M | Blue Cross Blue Shield of Minnesota |
| L4N | Premera Blue Cross |
| L4O | Unassigned prefix |
| L4P | Empire Blue Cross Blue Shield of New York |
| L4Q | Unassigned prefix |
| L4R | Anthem Blue Cross Blue Shield of Ohio |
| L4S | Blue Cross Blue Shield of Minnesota |
| L4T | Anthem Blue Cross Blue Shield of Ohio |
| L4U | Blue Cross Blue Shield of Illinois |
| L4V | Unassigned prefix |
| L4W | Blue Cross Blue Shield of Alabama |
| L4X | Anthem Blue Cross Blue Shield of Wisconsin |
| L4Y | Unassigned prefix |
| L4Z | Blue Cross Blue Shield of Illinois |
| L5A | Carefirst Blue Cross Blue Shield |
| L5B | Wellmark |
| L5C | Blue Cross Blue Shield of Texas |
| L5D | Highmark Blue Cross blue Shield |
| L5E | Wellmark |
| L5F | Wellmark |
| L5G | Wellmark |
| L5H | Carefirst Blue Cross Blue Shield |
| L5I | Wellmark |
| L5J | Wellmark |
| L5K | Blue Cross Blue Shield of Illinois |
| L5L | Highmark Blue Cross Blue Shield of Western New York |
| L5M | Anthem Blue Cross Blue Shield of Virginia |
| L5N | Premera Blue Cross |
| L5O | Unassigned prefix |
| L5P | Premera Blue Cross Blue Shield of Alaska |
| L5Q | Unassigned prefix |
| L5R | Anthem Blue Cross of California |
| L5S | Blue Cross Blue Shield of Illinois |
| L5T | Premera Blue Cross |
| L5U | Blue Cross Blue Shield of Western New York |
| L5V | Unassigned prefix |
| L5W | Blue Cross Blue Shield of Alabama |
| L5X | Unassigned prefix |
| L5Y | Unassigned prefix |
| L5Z | Unassigned prefix |
| L6A | Anthem Blue Cross Blue Shield of Virginia |
| L6B | Anthem Blue Cross Blue Shield of Indiana |
| L6C | Anthem Blue Cross Blue Shield of Georgia |
| L6D | Anthem Blue Cross Blue Shield of Georgia |
| L6E | Blue Cross Blue Shield of Alabama |
| L6F | Anthem Blue Cross Blue Shield of Ohio |
| L6G | Unassigned prefix |
| L6H | Blue Cross Blue Shield of Illinois |
| L6I | Unassigned prefix |
| L6J | Unassigned prefix |
| L6K | Blue Cross Blue Shield of Illinois |
| L6L | Unassigned prefix |
| L6M | Anthem Blue Cross of California |
| L6N | Blue Cross Blue Shield of Texas |
| L6O | Unassigned prefix |
| L6P | Unassigned prefix |
| L6Q | Unassigned prefix |
| L6R | Unassigned prefix |
| L6S | Blue Cross Blue Shield of Illinois |
| L6T | Unassigned prefix |
| L6U | Blue Cross Blue Shield of Minnesota |
| L6V | Unassigned prefix |
| L6W | Anthem Blue Cross Blue Shield of Connecticut |
| L6X | Unassigned prefix |
| L6Y | Unassigned prefix |
| L6Z | Unassigned prefix |
| L7A | Anthem Blue Cross Blue Shield of Ohio |
| L7B | Unassigned prefix |
| L7C | Blue Cross Blue Shield of Illinois |
| L7D | Unassigned prefix |
| L7E | Blue Cross Blue Shield of Alabama |
| L7F | Blue Cross of Massachusetts |
| L7G | Unassigned prefix |
| L7H | Anthem Blue Cross Blue Shield of Georgia |
| L7I | Unassigned prefix |
| L7J | Unassigned prefix |
| L7K | Unassigned prefix |
| L7L | Unassigned prefix |
| L7M | Anthem Blue Cross Blue Shield of Maine |
| L7N | Unassigned prefix |
| L7O | Unassigned prefix |
| L7P | Unassigned prefix |
| L7Q | Anthem Blue Cross Blue Shield of Ohio |
| L7R | Unassigned prefix |
| L7S | Blue Cross Blue Shield of Rhode Island |
| L7T | Unassigned prefix |
| L7U | Anthem Blue Cross of California |
| L7V | Unassigned prefix |
| L7W | Blue Cross Blue Shield of Alabama |
| L7X | Unassigned prefix |
| L7Y | Unassigned prefix |
| L7Z | Unassigned prefix |
| L8A | Carefirst Blue Cross Blue Shield |
| L8B | Anthem Blue Cross Blue Shield of Connecticut |
| L8C | Blue Cross Blue Shield of Illinois |
| L8D | Anthem Blue Cross Blue Shield of Connecticut |
| L8E | Unassigned prefix |
| L8F | Unassigned prefix |
| L8G | Unassigned prefix |
| L8H | Blue Cross of Vermont |
| L8I | Unassigned prefix |
| L8J | Unassigned prefix |
| L8K | Unassigned prefix |
| L8L | Empire Blue Cross Blue Shield of New York |
| L8M | Anthem Blue Cross Blue Shield of Missouri |
| L8N | Unassigned prefix |
| L8O | Unassigned prefix |
| L8P | Unassigned prefix |
| L8Q | Unassigned prefix |
| L8R | Unassigned prefix |
| L8S | Blue Cross Blue Shield of Illinois |
| L8T | Unassigned prefix |
| L8U | Unassigned prefix |
| L8V | Unassigned prefix |
| L8W | Blue Cross Blue Shield of Alabama |
| L8X | Unassigned prefix |
| L8Y | Unassigned prefix |
| L8Z | Unassigned prefix |
| L9A | Anthem Blue Cross Blue Shield of Ohio |
| L9B | Anthem Blue Cross Blue Shield of Ohio |
| L9C | Blue Cross of Vermont |
| L9D | Unassigned prefix |
| L9E | Empire Blue Cross Blue Shield of New York |
| L9F | Unassigned prefix |
| L9G | Unassigned prefix |
| L9H | Highmark Blue Cross Blue Shield of Delaware |
| L9I | Unassigned prefix |
| L9J | Unassigned prefix |
| L9K | Unassigned prefix |
| L9L | Unassigned prefix |
| L9M | Anthem Blue Cross Blue Shield of Missouri |
| L9N | Unassigned prefix |
| L9O | Unassigned prefix |
| L9P | Anthem Blue Cross Blue Shield of Wisconsin |
| L9Q | Unassigned prefix |
| L9R | Unassigned prefix |
| L9S | Blue Cross Blue Shield of Illinois |
| L9T | Anthem Blue Cross Blue Shield of Wisconsin |
| L9U | Unassigned prefix |
| L9V | Empire Blue Cross Blue Shield of New York |
| L9W | Blue Cross Blue Shield of Alabama |
| L9X | Anthem Blue Cross of California |
| L9Y | Unassigned prefix |
| L9Z | Unassigned prefix |
