| I2A | California | Blue-Shield of California |
| I2B | Ohio | Anthem Blue-Cross Blue-Shield of Ohio |
| I2C | Colorado | Anthem Blue-Cross Blue-Shield of Colorado |
| I2D | - | Unallocated/Not Assigned |
| I2E | - | Unallocated/Not Assigned |
| I2F | California | Anthem Blue-Cross |
| I2G | - | Unallocated/Not Assigned |
| I2H | - | Unallocated/Not Assigned |
| I2I | California | Anthem Blue-Cross |
| I2J | - | Unallocated/Not Assigned |
| I2K | - | Unallocated/Not Assigned |
| I2L | - | Unallocated/Not Assigned |
| I2M | Iowa | Wellmark |
| I2N | Iowa | Wellmark |
| I2O | - | Unallocated/Not Assigned |
| I2P | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| I2Q | - | Unallocated/Not Assigned |
| I2R | - | Unallocated/Not Assigned |
| I2S | - | Unallocated/Not Assigned |
| I2T | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| I2U | - | Unallocated/Not Assigned |
| I2V | California | Anthem Blue-Cross |
| I2W | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| I2X | - | Unallocated/Not Assigned |
| I2Y | - | Unallocated/Not Assigned |
| I2Z | - | Unallocated/Not Assigned |
| I3A | - | Unallocated/Not Assigned |
| I3B | - | Unallocated/Not Assigned |
| I3C | - | Unallocated/Not Assigned |
| I3D | - | Unallocated/Not Assigned |
| I3E | - | Unallocated/Not Assigned |
| I3F | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| I3G | - | Unallocated/Not Assigned |
| I3H | Alabama | Blue-Cross Blue-Shield of Alabama |
| I3I | - | Unallocated/Not Assigned |
| I3J | - | Unallocated/Not Assigned |
| I3K | - | Unallocated/Not Assigned |
| I3L | Pennsylvania | Capital Blue-Cross of Pennsylvania |
| I3M | - | Unallocated/Not Assigned |
| I3N | - | Unallocated/Not Assigned |
| I3O | - | Unallocated/Not Assigned |
| I3P | - | Unallocated/Not Assigned |
| I3Q | - | Unallocated/Not Assigned |
| I3R | - | Unallocated/Not Assigned |
| I3S | - | Unallocated/Not Assigned |
| I3T | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| I3U | - | Unallocated/Not Assigned |
| I3V | - | Unallocated/Not Assigned |
| I3W | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield |
| I3X | - | Unallocated/Not Assigned |
| I3Y | - | Unallocated/Not Assigned |
| I3Z | - | Unallocated/Not Assigned |
| I4A | Virginia | Anthem Blue-Cross Blue-Shield of Virginia |
| I4B | - | Unallocated/Not Assigned |
| I4C | - | Unallocated/Not Assigned |
| I4D | - | Unallocated/Not Assigned |
| I4E | - | Unallocated/Not Assigned |
| I4F | - | Unallocated/Not Assigned |
| I4G | - | Unallocated/Not Assigned |
| I4H | - | Unallocated/Not Assigned |
| I4I | - | Unallocated/Not Assigned |
| I4J | - | Unallocated/Not Assigned |
| I4K | - | Unallocated/Not Assigned |
| I4L | - | Unallocated/Not Assigned |
| I4M | - | Unallocated/Not Assigned |
| I4N | - | Unallocated/Not Assigned |
| I4O | - | Unallocated/Not Assigned |
| I4P | - | Unallocated/Not Assigned |
| I4Q | - | Unallocated/Not Assigned |
| I4R | - | Unallocated/Not Assigned |
| I4S | - | Unallocated/Not Assigned |
| I4T | - | Unallocated/Not Assigned |
| I4U | - | Unallocated/Not Assigned |
| I4V | - | Unallocated/Not Assigned |
| I4W | - | Unallocated/Not Assigned |
| I4X | - | Unallocated/Not Assigned |
| I4Y | - | Unallocated/Not Assigned |
| I4Z | - | Unallocated/Not Assigned |
| I5A | - | Unallocated/Not Assigned |
| I5B | - | Unallocated/Not Assigned |
| I5C | - | Unallocated/Not Assigned |
| I5D | - | Unallocated/Not Assigned |
| I5E | - | Unallocated/Not Assigned |
| I5F | - | Unallocated/Not Assigned |
| I5G | - | Unallocated/Not Assigned |
| I5H | - | Unallocated/Not Assigned |
| I5I | - | Unallocated/Not Assigned |
| I5J | Pennsylvania | Independence Blue-Cross of Pennsylvania |
| I5K | - | Unallocated/Not Assigned |
| I5L | - | Unallocated/Not Assigned |
| I5M | - | Unallocated/Not Assigned |
| I5N | - | Unallocated/Not Assigned |
| I5O | - | Unallocated/Not Assigned |
| I5P | - | Unallocated/Not Assigned |
| I5Q | - | Unallocated/Not Assigned |
| I5R | - | Unallocated/Not Assigned |
| I5S | - | Unallocated/Not Assigned |
| I5T | - | Unallocated/Not Assigned |
| I5U | - | Unallocated/Not Assigned |
| I5V | - | Unallocated/Not Assigned |
| I5W | - | Unallocated/Not Assigned |
| I5X | - | Unallocated/Not Assigned |
| I5Y | - | Unallocated/Not Assigned |
| I5Z | - | Unallocated/Not Assigned |
| I6A | - | Unallocated/Not Assigned |
| I6B | - | Unallocated/Not Assigned |
| I6C | - | Unallocated/Not Assigned |
| I6D | - | Unallocated/Not Assigned |
| I6E | - | Unallocated/Not Assigned |
| I6F | - | Unallocated/Not Assigned |
| I6G | - | Unallocated/Not Assigned |
| I6H | - | Unallocated/Not Assigned |
| I6I | - | Unallocated/Not Assigned |
| I6J | - | Unallocated/Not Assigned |
| I6K | - | Unallocated/Not Assigned |
| I6L | - | Unallocated/Not Assigned |
| I6M | - | Unallocated/Not Assigned |
| I6N | - | Unallocated/Not Assigned |
| I6O | - | Unallocated/Not Assigned |
| I6P | - | Unallocated/Not Assigned |
| I6Q | - | Unallocated/Not Assigned |
| I6R | - | Unallocated/Not Assigned |
| I6S | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania |
| I6T | - | Unallocated/Not Assigned |
| I6U | - | Unallocated/Not Assigned |
| I6V | - | Unallocated/Not Assigned |
| I6W | - | Unallocated/Not Assigned |
| I6X | - | Unallocated/Not Assigned |
| I6Y | - | Unallocated/Not Assigned |
| I6Z | - | Unallocated/Not Assigned |
| I7A | - | Unallocated/Not Assigned |
| I7B | - | Unallocated/Not Assigned |
| I7C | - | Unallocated/Not Assigned |
| I7D | - | Unallocated/Not Assigned |
| I7E | - | Unallocated/Not Assigned |
| I7F | - | Unallocated/Not Assigned |
| I7G | - | Unallocated/Not Assigned |
| I7H | - | Unallocated/Not Assigned |
| I7I | - | Unallocated/Not Assigned |
| I7J | - | Unallocated/Not Assigned |
| I7K | - | Unallocated/Not Assigned |
| I7L | - | Unallocated/Not Assigned |
| I7M | - | Unallocated/Not Assigned |
| I7N | - | Unallocated/Not Assigned |
| I7O | - | Unallocated/Not Assigned |
| I7P | - | Unallocated/Not Assigned |
| I7Q | - | Unallocated/Not Assigned |
| I7R | - | Unallocated/Not Assigned |
| I7S | - | Unallocated/Not Assigned |
| I7T | - | Unallocated/Not Assigned |
| I7U | - | Unallocated/Not Assigned |
| I7V | - | Unallocated/Not Assigned |
| I7W | - | Unallocated/Not Assigned |
| I7X | - | Unallocated/Not Assigned |
| I7Y | - | Unallocated/Not Assigned |
| I7Z | - | Unallocated/Not Assigned |
| I8A | - | Unallocated/Not Assigned |
| I8B | - | Unallocated/Not Assigned |
| I8C | - | Unallocated/Not Assigned |
| I8D | - | Unallocated/Not Assigned |
| I8E | - | Unallocated/Not Assigned |
| I8F | - | Unallocated/Not Assigned |
| I8G | - | Unallocated/Not Assigned |
| I8H | - | Unallocated/Not Assigned |
| I8I | - | Unallocated/Not Assigned |
| I8J | - | Unallocated/Not Assigned |
| I8K | - | Unallocated/Not Assigned |
| I8L | - | Unallocated/Not Assigned |
| I8M | - | Unallocated/Not Assigned |
| I8N | - | Unallocated/Not Assigned |
| I8O | - | Unallocated/Not Assigned |
| I8P | - | Unallocated/Not Assigned |
| I8Q | - | Unallocated/Not Assigned |
| I8R | - | Unallocated/Not Assigned |
| I8S | - | Unallocated/Not Assigned |
| I8T | - | Unallocated/Not Assigned |
| I8U | - | Unallocated/Not Assigned |
| I8V | - | Unallocated/Not Assigned |
| I8W | - | Unallocated/Not Assigned |
| I8X | - | Unallocated/Not Assigned |
| I8Y | - | Unallocated/Not Assigned |
| I8Z | - | Unallocated/Not Assigned |
| I9A | - | Unallocated/Not Assigned |
| I9B | - | Unallocated/Not Assigned |
| I9C | - | Unallocated/Not Assigned |
| I9D | - | Unallocated/Not Assigned |
| I9E | - | Unallocated/Not Assigned |
| I9F | - | Unallocated/Not Assigned |
| I9G | - | Unallocated/Not Assigned |
| I9H | - | Unallocated/Not Assigned |
| I9I | - | Unallocated/Not Assigned |
| I9J | - | Unallocated/Not Assigned |
| I9K | - | Unallocated/Not Assigned |
| I9L | - | Unallocated/Not Assigned |
| I9M | - | Unallocated/Not Assigned |
| I9N | - | Unallocated/Not Assigned |
| I9O | - | Unallocated/Not Assigned |
| I9P | - | Unallocated/Not Assigned |
| I9Q | - | Unallocated/Not Assigned |
| I9R | - | Unallocated/Not Assigned |
| I9S | - | Unallocated/Not Assigned |
| I9T | - | Unallocated/Not Assigned |
| I9U | - | Unallocated/Not Assigned |
| I9V | - | Unallocated/Not Assigned |
| I9W | - | Unallocated/Not Assigned |
| I9X | - | Unallocated/Not Assigned |
| I9Y | - | Unallocated/Not Assigned |
| I9Z | - | Unallocated/Not Assigned |