| BCBS Alpha Numeric Prefix | BCBS Plan Name | Website |
| T2A | BCBS of Western New York | https://www.bcbswny.com/ |
| T2B | BCBS of Illinois | https://www.bcbsil.com/ |
| T2C | BCBS of Illinois | https://www.bcbsil.com/ |
| T2D | BCBS of Texas | https://www.bcbstx.com/ |
| T2E | BCBS of Texas | https://www.bcbstx.com/ |
| T2F | BCBS of Texas | https://www.bcbstx.com/ |
| T2G | BCBS of Texas | https://www.bcbstx.com/ |
| T2H | BCBS of Illinois | https://www.bcbsil.com/ |
| T2I | Highmark BCBS of Pennsylvania | https://www.highmarkbcbs.com/home/ |
| T2J | BCBS of Texas | https://www.bcbstx.com/ |
| T2K | BCBS of Texas | https://www.bcbstx.com/ |
| T2L | Regence BCBS | https://www.regence.com/home |
| T2M | Anthem Blue Cross of California | https://www.anthem.com/ca |
| T2N | Anthem BCBS of Virginia | https://abcbsva.anthem.com/ |
| T2O | Anthem BCBS of Kentucky | https://www.anthem.com/contact-us/kentucky/ |
| T2P | BCBS of Minnesota | https://www.bluecrossmn.com/providers |
| T2Q | Anthem Blue Cross of California | https://www.anthem.com/ca |
| T2R | BCBS of Illinois | https://www.bcbsil.com/ |
| T2S | BCBS of Texas | https://www.bcbstx.com/ |
| T2T | BCBS of Minnesota | https://www.bluecrossmn.com/providers |
| T2U BCBS Prefix | BCBS of Texas | https://www.bcbstx.com/ |
| T2V | Capital Blue Cross of Pennsylvania | https://www.capbluecross.com/wps/portal/cap/provider |
| T2W | BCBS of Illinois | https://www.bcbsil.com/ |
| T2X | BCBS of Illinois | https://www.bcbsil.com/ |
| T2Y | BCBS of North Dakota | https://www.bcbsnd.com/ |
| T2Z | BCBS of Illinois | https://www.bcbsil.com/ |
| T3A | Regence BCBS | https://www.regence.com/home |
| T3B | Highmark BCBS of Pennsylvania | https://www.highmarkbcbs.com/home/ |
| T3C | Regence BCBS | https://www.regence.com/home |
| T3D | Highmark BCBS of Pennsylvania | https://www.highmarkbcbs.com/home/ |
| T3E | BCBS of Texas | https://www.bcbstx.com/ |
| T3F | Highmark BCBS of Pennsylvania | https://www.highmarkbcbs.com/home/ |
| T3G | Capital Blue Cross of Pennsylvania | https://www.capbluecross.com/wps/portal/cap/provider |
| T3H | BCBS of Illinois | https://www.bcbsil.com/ |
| T3I | No Prefix Assigned | Not Found |
| T3J | Highmark BCBS of Pennsylvania | https://www.highmarkbcbs.com/home/ |
| T3K | BCBS of Texas | https://www.bcbstx.com/ |
| T3L | Capital Blue Cross of Pennsylvania | https://www.capbluecross.com/wps/portal/cap/provider |
| T3M | Anthem Blue Cross of California | https://www.anthem.com/ca |
| T3N | Anthem Blue Cross of California | https://www.anthem.com/ca |
| T3O | No Prefix Assigned | Not Found |
| T3P | BCBS of Minnesota | https://www.bluecrossmn.com/providers |
| T3Q | No Prefix Assigned | Not Found |
| T3R | BCBS of Texas | https://www.bcbstx.com/ |
| T3S | BCBS of Texas | https://www.bcbstx.com/ |
| T3T | BCBS of Minnesota | https://www.bluecrossmn.com/providers |
| T3U | Anthem BCBS of Missouri | https://www.anthem.com/contact-us/missouri/ |
| T3V | Anthem BCBS of Ohio | https://www.anthem.com/contact-us/ohio/ |
| T3W | Highmark BCBS of Western New York | https://www.bcbswny.com/ |
| T3X | BCBS of Texas | https://www.bcbstx.com/ |
| T3Y | Anthem Blue Cross of California | https://www.anthem.com/ca |
| T3Z | Anthem Blue Cross of California | https://www.anthem.com/ca |
| T4A | Empire BCBS of New York | https://www.empireblue.com/ |
| T4B | Empire BCBS of New York | https://www.empireblue.com/ |
| T4C | Empire BCBS of New York | https://www.empireblue.com/ |
| T4D | Empire BCBS of New York | https://www.empireblue.com/ |
| T4E | Empire BCBS of New York | https://www.empireblue.com/ |
| T4F | Empire BCBS of New York | https://www.empireblue.com/ |
| T4G | Empire BCBS of New York | https://www.empireblue.com/ |
| T4H | BCBS of Illinois | https://www.bcbsil.com/ |
| T4I | No Prefix Assigned | Not Found |
| T4J | Empire BCBS of New York | https://www.empireblue.com/ |
| T4K | Empire BCBS of New York | https://www.empireblue.com/ |
| T4L | Empire BCBS of New York | https://www.empireblue.com/ |
| T4M | Empire BCBS of New York | https://www.empireblue.com/ |
| T4N | Empire BCBS of New York | https://www.empireblue.com/ |
| T4O | Anthem BCBS of Colorado | https://www.anthem.com/contact-us/colorado/ |
| T4P | BCBS of Illinois | https://www.bcbsil.com/ |
| T4Q | Anthem Blue Cross of California | https://www.anthem.com/ca |
| T4R | BCBS of Texas | https://www.bcbstx.com/ |
| T4S | Empire BCBS of New York | https://www.empireblue.com/ |
| T4T | BCBS of Massachusetts | https://www.bluecrossma.org/ |
| T4U | Empire BCBS of New York | https://www.empireblue.com/ |
| T4V | Empire BCBS of New York | https://www.empireblue.com/ |
| T4W | Premera Blue Cross of Alaska | https://www.premera.com/ak/provider/ |
| T4X | Anthem Blue Cross of California | https://www.anthem.com/ca |
| T4Y | Anthem Blue Cross of California | https://www.anthem.com/ca |
| T4Z | No Prefix Assigned | Not Found |
| T5A | Anthem Blue Cross of California | https://www.anthem.com/ca |
| T5B | Anthem BCBS of Ohio | https://www.anthem.com/contact-us/ohio/ |
| T5C | Anthem Blue Cross of California | https://www.anthem.com/ca |
| T5D | Anthem Blue Cross of California | https://www.anthem.com/ca |
| T5E | Anthem Blue Cross of California | https://www.anthem.com/ca |
| T5F | Anthem BCBS of Virginia | https://abcbsva.anthem.com/ |
| T5G | Anthem BCBS of Indiana | https://providers.anthem.com/indiana-provider/home |
| T5H | BCBS of Illinois | https://www.bcbsil.com/ |
| T5I | No Prefix Assigned | Not Found |
| T5J | Anthem Blue Cross of California | https://www.anthem.com/ca |
| T5K | Anthem Blue Cross of California | https://www.anthem.com/ca |
| T5L | BCBS of Illinois | https://www.bcbsil.com/ |
| T5M | Anthem BCBS of Colorado | https://www.anthem.com/contact-us/colorado/ |
| T5N | Anthem BCBS of Georgia | https://www.anthem.com/contact-us/georgia/ |
| T5O | Anthem BCBS of Ohio | https://www.anthem.com/contact-us/ohio/ |
| T5P | Regence BCBS | https://www.regence.com/home |
| T5Q | Anthem Blue Cross of California | https://www.anthem.com/ca |
| T5R | BCBS of Texas | https://www.bcbstx.com/ |
| T5S | BCBS of Texas | https://www.bcbstx.com/ |
| T5T | Regence BCBS | https://www.regence.com/home |
| T5U | Anthem BCBS of Missouri | https://www.anthem.com/contact-us/missouri/ |
| T5V | Anthem Blue Cross of California | https://www.anthem.com/ca |
| T5W | Anthem Blue Cross of California | https://www.anthem.com/ca |
| T5X | Anthem Blue Cross of California | https://www.anthem.com/ca |
| T5Y | Anthem Blue Cross of California | https://www.anthem.com/ca |
| T5Z | BCBS of Texas | https://www.bcbstx.com/ |
| T6A | Empire BCBS of New York | https://www.empireblue.com/ |
| T6B | BCBS of Illinois | https://www.bcbsil.com/ |
| T6C | Regence BCBS | https://www.regence.com/home |
| T6D | Highmark BCBS of Pennsylvania | https://www.highmarkbcbs.com/home/ |
| T6E | Anthem BCBS of Georgia | https://www.anthem.com/contact-us/georgia/ |
| T6F | Highmark BCBS of Delaware | https://www.highmarkbcbsde.com/ |
| T6G | Regence BCBS | https://www.regence.com/home |
| T6H | BCBS of Illinois | https://www.bcbsil.com/ |
| T6I | No Prefix Assigned | Not Found |
| T6J | Premera Blue Cross of Alaska | https://www.premera.com/ak/provider/ |
| T6K | Anthem BCBS of Missouri | https://www.anthem.com/contact-us/missouri/ |
| T6L | Empire BCBS of New York | https://www.empireblue.com/ |
| T6M | Highmark BCBS of Pennsylvania | https://www.highmarkbcbs.com/home/ |
| T6N | BCBS of Massachusetts | https://www.bluecrossma.org/ |
| T6O | No Prefix Assigned | Not Found |
| T6P | Anthem BCBS of Georgia | https://www.anthem.com/contact-us/georgia/ |
| T6Q | Highmark BCBS of Pennsylvania | https://www.highmarkbcbs.com/home/ |
| T6R | Highmark BCBS of West Virginia | https://www.highmarkbcbswv.com/ |
| T6S | Anthem BCBS of Georgia | https://www.anthem.com/contact-us/georgia/ |
| T6T | BCBS of Michigan | https://www.bcbsm.com/ |
| T6U | BCBS of Michigan | https://www.bcbsm.com/ |
| T6V | Highmark BCBS of Pennsylvania | https://www.highmarkbcbs.com/home/ |
| T6W | Highmark BCBS of Pennsylvania | https://www.highmarkbcbs.com/home/ |
| T6X | Highmark BCBS of Delaware | https://www.highmarkbcbsde.com/ |
| T6Y | Highmark BCBS of Pennsylvania | https://www.highmarkbcbs.com/home/ |
| T6Z | Highmark BCBS of West Virginia | https://www.highmarkbcbswv.com/ |
| T7A | Anthem BCBS of Indiana | https://providers.anthem.com/indiana-provider/home |
| T7B | Anthem BCBS of Indiana | https://providers.anthem.com/indiana-provider/home |
| T7C | Anthem BCBS of Indiana | https://providers.anthem.com/indiana-provider/home |
| T7D | No Prefix Assigned | Not Found |
| T7E | Anthem BCBS of Indiana | https://providers.anthem.com/indiana-provider/home |
| T7F | Anthem BCBS of Indiana | https://providers.anthem.com/indiana-provider/home |
| T7G | Anthem BCBS of Indiana | https://providers.anthem.com/indiana-provider/home |
| T7H | BCBS of Illinois | https://www.bcbsil.com/ |
| T7I | No Prefix Assigned | Not Found |
| T7J | Anthem BCBS of Indiana | https://providers.anthem.com/indiana-provider/home |
| T7K | Anthem BCBS of Indiana | https://providers.anthem.com/indiana-provider/home |
| T7L | Anthem BCBS of Indiana | https://providers.anthem.com/indiana-provider/home |
| T7M | Anthem BCBS of Ohio | https://www.anthem.com/contact-us/ohio/ |
| T7N | Empire BCBS of New York | https://www.empireblue.com/ |
| T7O | No Prefix Assigned | Not Found |
| T7P | No Prefix Assigned | Not Found |
| T7Q | No Prefix Assigned | Not Found |
| T7R | Anthem BCBS of Indiana | https://providers.anthem.com/indiana-provider/home |
| T7S | Anthem Blue Cross of California | https://www.anthem.com/ca |
| T7T | BCBS of Illinois | https://www.bcbsil.com/ |
| T7U | BCBS of Illinois | https://www.bcbsil.com/ |
| T7V | No Prefix Assigned | Not Found |
| T7W | No Prefix Assigned | Not Found |
| T7X | BCBS of Illinois | https://www.bcbsil.com/ |
| T7Y | Anthem BCBS of Ohio | https://www.anthem.com/contact-us/ohio/ |
| T7Z | Anthem BCBS of Wisconsin | https://www.anthem.com/contact-us/wisconsin/ |
| T8A | Capital Blue Cross of Pennsylvania | https://www.capbluecross.com/wps/portal/cap/provider |
| T8B | Blue-Shield of Northeastern New York | https://www.bsneny.com/content/neny.html |
| T8C | Anthem BCBS of Missouri | https://www.anthem.com/contact-us/missouri/ |
| T8D | Anthem BCBS of Missouri | https://www.anthem.com/contact-us/missouri/ |
| T8E | BCBS of Massachusetts | https://www.bluecrossma.org/ |
| T8F | Anthem BCBS of Georgia | https://www.anthem.com/contact-us/georgia/ |
| T8G | Anthem BCBS of Georgia | https://www.anthem.com/contact-us/georgia/ |
| T8H | BCBS of Illinois | https://www.bcbsil.com/ |
| T8I | No Prefix Assigned | Not Found |
| T8J | No Prefix Assigned | Not Found |
| T8K | No Prefix Assigned | Not Found |
| T8L | Anthem Blue Cross of California | https://www.anthem.com/ca |
| T8M | Premera Blue Cross of Alaska | https://www.premera.com/ak/provider/ |
| T8N | BCBS of Illinois | https://www.bcbsil.com/ |
| T8O | No Prefix Assigned | Not Found |
| T8P | Anthem Blue Cross of California | https://www.anthem.com/ca |
| T8Q | No Prefix Assigned | Not Found |
| T8R | Premera Blue Cross of Alaska | https://www.premera.com/ak/provider/ |
| T8S | Anthem BCBS of Georgia | https://www.anthem.com/contact-us/georgia/ |
| T8T | Anthem BCBS of Georgia | https://www.anthem.com/contact-us/georgia/ |
| T8U | No Prefix Assigned | Not Found |
| T8V | Capital Blue Cross of Pennsylvania | https://www.capbluecross.com/wps/portal/cap/provider |
| T8W | Anthem Blue Cross of California | https://www.anthem.com/ca |
| T8X | Anthem BCBS of Colorado | https://www.anthem.com/contact-us/colorado/ |
| T8Y | Anthem Blue Cross of California | https://www.anthem.com/ca |
| T8Z | BCBS of Massachusetts | https://www.bluecrossma.org/ |
| T9A | Anthem BCBS of Ohio | https://www.anthem.com/contact-us/ohio/ |
| T9B | No Prefix Assigned | Not Found |
| T9C | Regence BCBS | https://www.regence.com/home |
| T9D | Anthem BCBS of Georgia | https://www.anthem.com/contact-us/georgia/ |
| T9E | Anthem BCBS of Indiana | https://providers.anthem.com/indiana-provider/home |
| T9F | Anthem BCBS of Indiana | https://providers.anthem.com/indiana-provider/home |
| T9G | Anthem BCBS of Indiana | https://providers.anthem.com/indiana-provider/home |
| T9H | BCBS of Illinois | https://www.bcbsil.com/ |
| T9I | No Prefix Assigned | Not Found |
| T9J | Anthem BCBS of Indiana | https://providers.anthem.com/indiana-provider/home |
| T9K | Anthem BCBS of Indiana | https://providers.anthem.com/indiana-provider/home |
| T9L | Anthem BCBS of Indiana | https://providers.anthem.com/indiana-provider/home |
| T9M | Anthem BCBS of Indiana | https://providers.anthem.com/indiana-provider/home |
| T9N | BCBS of Minnesota | https://www.bluecrossmn.com/providers |
| T9O | No Prefix Assigned | Not Found |
| T9P | Anthem BCBS of Indiana | https://providers.anthem.com/indiana-provider/home |
| T9Q | No Prefix Assigned | Not Found |
| T9R | Empire BCBS of New York | https://www.empireblue.com/ |
| T9S | BCBS of Illinois | https://www.bcbsil.com/ |
| T9T | Capital Blue Cross of Pennsylvania | https://www.capbluecross.com/wps/portal/cap/provider |
| T9U | No Prefix Assigned | Not Found |
| T9V | Capital Blue Cross of Pennsylvania | https://www.capbluecross.com/wps/portal/cap/provider |
| T9W | Anthem BCBS of Wisconsin | https://www.anthem.com/contact-us/wisconsin/ |
| T9X | Empire BCBS of New York | https://www.empireblue.com/ |
| T9Y | Anthem BCBS of Ohio | https://www.anthem.com/contact-us/ohio/ |
| T9Z | Anthem BCBS of Connecticut | https://www.anthem.com/contact |
