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BCBS Alpha Numeric Prefix from I2A to I9Z (UPDATE 2025)
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BCBS (Blue Cross Blue Shield) member ID prefixes are crucial for medical billers, healthcare providers, and patients to identify the specific BCBS healthcare plan. In this article, we will provide a detailed list of all the Alpha Prefixes from I2A to I9Z, including their corresponding BCBS Home Plans and websites.
Understanding BCBS Alpha Numeric Prefixes
Alpha Prefixes help in quick identification of a patient’s insurance provider. Each prefix corresponds to a unique BCBS Home Plan, which determines patient eligibility and the claims process. Here is the comprehensive list of Alpha Numeric Prefixes ranging from I2A to I9Z:
| BCBS Alpha Numeric Prefix | BCBS Home Plan Name | State | BCBS Home Plan Website |
|---|---|---|---|
| I2A | Anthem Blue Cross of California | California | anthem.com/ca |
| I2B | Anthem BCBS of Ohio | Ohio | anthem.com/contact-us/ohio/ |
| I2C | Anthem BCBS of Colorado | Colorado | anthem.com/contact-us/colorado/ |
| I2D | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I2E | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I2F | Anthem Blue Cross of California | California | anthem.com/ca |
| I2G | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I2H | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I2I | Anthem Blue Cross of California | California | anthem.com/ca |
| I2J | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I2K | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I2L | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I2M | Wellmark | Iowa | wellmark.com |
| I2N | Wellmark | Iowa | wellmark.com |
| I2O | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I2P | Regence BCBS | Oregon/Idaho/Utah/Washington | regence.com/home |
| I2Q | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I2R | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I2S | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I2T | Regence BCBS | Oregon/Idaho/Utah/Washington | regence.com/home |
| I2U | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I2V | Anthem Blue Cross of California | California | anthem.com/ca |
| I2W | Regence BCBS | Oregon/Idaho/Utah/Washington | regence.com/home |
| I2X | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I2Y | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I2Z | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I3A | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I3B | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I3C | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I3D | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I3E | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I3F | Regence BCBS | Oregon/Idaho/Utah/Washington | regence.com/home |
| I3G | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I3H | BCBS of Alabama | Alabama | bcbsal.org |
| I3I | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I3J | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I3K | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I3L | Capital Blue Cross of Pennsylvania | Pennsylvania | capbluecross.com |
| I3M | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I3N | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I3O | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I3P | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I3Q | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I3R | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I3S | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I3T | Anthem BCBS of Virginia | Virginia | abcbsva.anthem.com |
| I3U | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I3V | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I3W | Regence BCBS | Oregon/Idaho/Utah/Washington | regence.com/home |
| I3X | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I3Y | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I3Z | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I4A | Anthem BCBS of Virginia | Virginia | abcbsva.anthem.com |
| I4B | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I4C | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I4D | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I4E | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I4F | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I4G | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I4H | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I4I | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I4J | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I4K | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I4L | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I4M | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I4N | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I4O | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I4P | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I4Q | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I4R | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I4S | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I4T | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I4U | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I4V | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I4W | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I4X | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I4Y | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I4Z | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I5A | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I5B | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I5C | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I5D | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I5E | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I5F | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I5G | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I5H | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I5I | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I5J | Independence Blue Cross of Pennsylvania | Pennsylvania | ibx.com |
| I5K | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I5L | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I5M | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I5N | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I5O | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I5P | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I5Q | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I5R | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I5S | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I5T | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I5U | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I5V | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I5W | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I5X | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I5Y | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I5Z | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I6A | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I6B | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I6C | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I6D | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I6E | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I6F | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I6G | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I6H | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I6I | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I6J | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I6K | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I6L | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I6M | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I6N | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I6O | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I6P | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I6Q | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I6R | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I6S | Highmark BCBS of Pennsylvania | Pennsylvania | highmarkbcbs.com |
| I6T | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I6U | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I6V | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I6W | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I6X | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I6Y | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I6Z | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7A | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7B | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7C | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7D | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7E | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7F | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7G | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7H | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7I | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7J | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7K | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7L | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7M | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7N | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7O | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7P | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7Q | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7R | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7S | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7T | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7U | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7V | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7W | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7X | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7Y | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I7Z | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8A | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8B | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8C | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8D | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8E | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8F | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8G | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8H | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8I | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8J | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8K | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8L | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8M | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8N | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8O | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8P | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8Q | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8R | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8S | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8T | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8U | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8V | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8W | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8X | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8Y | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I8Z | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9A | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9B | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9C | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9D | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9E | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9F | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9G | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9H | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9I | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9J | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9K | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9L | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9M | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9N | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9O | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9P | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9Q | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9R | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9S | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9T | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9U | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9V | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9W | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9X | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9Y | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
| I9Z | Unallocated/Not Assigned | Yet to be assigned | Yet to be assigned |
Summary
Understanding the BCBS Alpha Numeric Prefixes is essential in the medical billing process. It enables providers and billers to determine patient coverage accurately and manage claims efficiently.
Should you need further assistance or details about your BCBS healthcare plan, feel free to reach out to Texmed Billing Solutions at support@texmed.us.