| I2A | Blue Shield of California |
| I2B | Anthem Blue Cross Blue Shield of Ohio |
| I2C | Anthem Blue Cross Blue Shield of Colorado |
| I2D | Unassigned Prefix |
| I2E | Unassigned Prefix |
| I2F | Anthem Blue Cross of California |
| I2G | Unassigned Prefix |
| I2H | Unassigned Prefix |
| I2I | Anthem Blue Cross of California |
| I2J | Unassigned Prefix |
| I2K | Unassigned Prefix |
| I2L | Unassigned Prefix |
| I2M | Wellmark |
| I2N | Wellmark |
| I2O | Unassigned Prefix |
| I2P | Regence Blue Cross Blue Shield |
| I2Q | Unassigned Prefix |
| I2R | Unassigned Prefix |
| I2S | Unassigned Prefix |
| I2T | Regence Blue Cross Blue Shield |
| I2U | Unassigned Prefix |
| I2V | Anthem Blue Cross of California |
| I2W | Regence Blue Cross Blue Shield |
| I2X | Unassigned Prefix |
| I2Y | Unassigned Prefix |
| I2Z | Unassigned Prefix |
| I3A | Unassigned Prefix |
| I3B | Unassigned Prefix |
| I3C | Unassigned Prefix |
| I3D | Unassigned Prefix |
| I3E | Unassigned Prefix |
| I3F | Regence Blue Cross Blue Shield |
| I3G | Unassigned Prefix |
| I3H | Blue Cross Blue Shield of Alabama |
| I3I | Unassigned Prefix |
| I3J | Unassigned Prefix |
| I3K | Unassigned Prefix |
| I3L | Capital Blue Cross |
| I3M | Unassigned Prefix |
| I3N | Unassigned Prefix |
| I3O | Unassigned Prefix |
| I3P | Unassigned Prefix |
| I3Q | Unassigned Prefix |
| I3R | Unassigned Prefix |
| I3S | Unassigned Prefix |
| I3T | Anthem Blue Cross Blue Shield of Virginia |
| I3U | Unassigned Prefix |
| I3V | Unassigned Prefix |
| I3W | Regence Blue Cross Blue Shield |
| I3X | Unassigned Prefix |
| I3Y | Unassigned Prefix |
| I3Z | Unassigned Prefix |
| I4A | Anthem Blue Cross Blue Shield of Virginia |
| I4B | Unassigned Prefix |
| I4C | Unassigned Prefix |
| I4D | Unassigned Prefix |
| I4E | Unassigned Prefix |
| I4F | Unassigned Prefix |
| I4G | Unassigned Prefix |
| I4H | Unassigned Prefix |
| I4I | Unassigned Prefix |
| I4J | Unassigned Prefix |
| I4K | Unassigned Prefix |
| I4L | Unassigned Prefix |
| I4M | Unassigned Prefix |
| I4N | Unassigned Prefix |
| I4O | Unassigned Prefix |
| I4P | Unassigned Prefix |
| I4Q | Unassigned Prefix |
| I4R | Unassigned Prefix |
| I4S | Unassigned Prefix |
| I4T | Unassigned Prefix |
| I4U | Unassigned Prefix |
| I4V | Unassigned Prefix |
| I4W | Unassigned Prefix |
| I4X | Unassigned Prefix |
| I4Y | Unassigned Prefix |
| I4Z | Unassigned Prefix |
| I5A | Unassigned Prefix |
| I5B | Unassigned Prefix |
| I5C | Unassigned Prefix |
| I5D | Unassigned Prefix |
| I5E | Unassigned Prefix |
| I5F | Unassigned Prefix |
| I5G | Unassigned Prefix |
| I5H | Unassigned Prefix |
| I5I | Unassigned Prefix |
| I5J | Independence Blue Cross |
| I5K | Unassigned Prefix |
| I5L | Unassigned Prefix |
| I5M | Unassigned Prefix |
| I5N | Unassigned Prefix |
| I5O | Unassigned Prefix |
| I5P | Unassigned Prefix |
| I5Q | Unassigned Prefix |
| I5R | Unassigned Prefix |
| I5S | Unassigned Prefix |
| I5T | Unassigned Prefix |
| I5U | Unassigned Prefix |
| I5V | Unassigned Prefix |
| I5W | Unassigned Prefix |
| I5X | Unassigned Prefix |
| I5Y | Unassigned Prefix |
| I5Z | Unassigned Prefix |
| I6A | Unassigned Prefix |
| I6B | Unassigned Prefix |
| I6C | Unassigned Prefix |
| I6D | Unassigned Prefix |
| I6E | Unassigned Prefix |
| I6F | Unassigned Prefix |
| I6G | Unassigned Prefix |
| I6H | Unassigned Prefix |
| I6I | Unassigned Prefix |
| I6J | Unassigned Prefix |
| I6K | Unassigned Prefix |
| I6L | Unassigned Prefix |
| I6M | Unassigned Prefix |
| I6N | Unassigned Prefix |
| I6O | Unassigned Prefix |
| I6P | Unassigned Prefix |
| I6Q | Unassigned Prefix |
| I6R | Unassigned Prefix |
| I6S | Highmark Blue Cross Blue Shield |
| I6T | Unassigned Prefix |
| I6U | Unassigned Prefix |
| I6V | Unassigned Prefix |
| I6W | Unassigned Prefix |
| I6X | Unassigned Prefix |
| I6Y | Unassigned Prefix |
| I6Z | Unassigned Prefix |
| I7A | Unassigned Prefix |
| I7B | Unassigned Prefix |
| I7C | Unassigned Prefix |
| I7D | Unassigned Prefix |
| I7E | Unassigned Prefix |
| I7F | Unassigned Prefix |
| I7G | Unassigned Prefix |
| I7H | Unassigned Prefix |
| I7I | Unassigned Prefix |
| I7J | Unassigned Prefix |
| I7K | Unassigned Prefix |
| I7L | Unassigned Prefix |
| I7M | Unassigned Prefix |
| I7N | Unassigned Prefix |
| I7O | Unassigned Prefix |
| I7P | Unassigned Prefix |
| I7Q | Unassigned Prefix |
| I7R | Unassigned Prefix |
| I7S | Unassigned Prefix |
| I7T | Unassigned Prefix |
| I7U | Unassigned Prefix |
| I7V | Unassigned Prefix |
| I7W | Unassigned Prefix |
| I7X | Unassigned Prefix |
| I7Y | Unassigned Prefix |
| I7Z | Unassigned Prefix |
| I8A | Unassigned Prefix |
| I8B | Unassigned Prefix |
| I8C | Unassigned Prefix |
| I8D | Unassigned Prefix |
| I8E | Unassigned Prefix |
| I8F | Unassigned Prefix |
| I8G | Unassigned Prefix |
| I8H | Unassigned Prefix |
| I8I | Unassigned Prefix |
| I8J | Unassigned Prefix |
| I8K | Unassigned Prefix |
| I8L | Unassigned Prefix |
| I8M | Unassigned Prefix |
| I8N | Unassigned Prefix |
| I8O | Unassigned Prefix |
| I8P | Unassigned Prefix |
| I8Q | Unassigned Prefix |
| I8R | Unassigned Prefix |
| I8S | Unassigned Prefix |
| I8T | Unassigned Prefix |
| I8U | Unassigned Prefix |
| I8V | Unassigned Prefix |
| I8W | Unassigned Prefix |
| I8X | Unassigned Prefix |
| I8Y | Unassigned Prefix |
| I8Z | Unassigned Prefix |
| I9A | Unassigned Prefix |
| I9B | Unassigned Prefix |
| I9C | Unassigned Prefix |
| I9D | Unassigned Prefix |
| I9E | Unassigned Prefix |
| I9F | Unassigned Prefix |
| I9G | Unassigned Prefix |
| I9H | Unassigned Prefix |
| I9I | Unassigned Prefix |
| I9J | Unassigned Prefix |
| I9K | Unassigned Prefix |
| I9L | Unassigned Prefix |
| I9M | Unassigned Prefix |
| I9N | Unassigned Prefix |
| I9O | Unassigned Prefix |
| I9P | Unassigned Prefix |
| I9Q | Unassigned Prefix |
| I9R | Unassigned Prefix |
| I9S | Unassigned Prefix |
| I9T | Unassigned Prefix |
| I9U | Unassigned Prefix |
| I9V | Unassigned Prefix |
| I9W | Unassigned Prefix |
| I9X | Unassigned Prefix |
| I9Y | Unassigned Prefix |
| I9Z | Unassigned Prefix |
