BCBS Alpha Numeric Prefixes are three-character combinations of letters and numbers found at the beginning of the identification number on Blue Cross Blue Shield insurance cards. They help in identifying the health plans of patients along with their insurance companies.
This blog will cover the alphanumeric prefixes ranging from X2A to X9Z and list down their applicable state, insurance company name, and type of health plans.
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BCBS Alpha Numeric Prefix from X2A to X9Z – Latest Insights
| BCBS Prefix | State | Company Name | Types Of Health Plan |
|---|---|---|---|
| X2A | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut | HMO, EPO, PPO |
| X2B | Idaho | Blue-Cross of Idaho | POS, Medicaid, HDHP |
| X2C | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut | Medicare Advantage, Traditional Indemnity, HMO |
| X2D | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut | EPO, HDHP, PPO |
| X2E | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut | Medicaid, Traditional Indemnity, POS |
| X2F | California | Anthem Blue-Cross | HMO, EPO, Medicare Advantage |
| X2G | Ohio | Anthem Blue-Cross Blue-Shield of Ohio | PPO, POS, HDHP |
| X2H | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield | Traditional Indemnity, Medicaid, HMO |
| X2I | – | Prefix Unallocated/Not Assigned | |
| X2J | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania | HDHP, POS, Traditional Indemnity |
| X2K | – | Prefix Unallocated/Not Assigned | |
| X2L | Maryland | Carefirst Blue-Cross Blue-Shield | PPO, POS, Medicare Advantage |
| X2M | Virginia | Anthem Blue-Cross Blue-Shield of Virginia | Traditional Indemnity, HMO, HDHP |
| X2N | Ohio | Anthem Blue-Cross Blue-Shield of Ohio | EPO, Medicaid, PPO |
| X2O | – | Prefix Unallocated/Not Assigned | |
| X2P | Virginia | Anthem Blue-Cross Blue-Shield of Virginia | HMO, Medicare Advantage, EPO |
| X2Q | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield | PPO, Medicaid, HDHP |
| X2R | Illinois | Blue-Cross Blue-Shield of Illinois | Traditional Indemnity, POS, HMO |
| X2S | Illinois | Blue-Cross Blue-Shield of Illinois | Medicare Advantage, EPO, PPO |
| X2T | Illinois | Blue-Cross Blue-Shield of Illinois | HDHP, Medicaid, Traditional Indemnity |
| X2U | Illinois | Blue-Cross Blue-Shield of Illinois | HMO, EPO, Medicare Advantage |
| X2V | – | Prefix Unallocated/Not Assigned | |
| X2W | Ohio | Anthem Blue-Cross Blue-Shield of Ohio | Traditional Indemnity, HMO, Medicaid |
| X2X | Indiana | Anthem Blue-Cross Blue-Shield of Indiana | EPO, PPO, POS |
| X2Y | Indiana | Anthem Blue-Cross Blue-Shield of Indiana | HDHP, Medicare Advantage, Traditional Indemnity |
| X2Z | Indiana | Anthem Blue-Cross Blue-Shield of Indiana | Medicaid, HMO, EPO |
| X3A | New Hampshire | Anthem Blue-Cross Blue-Shield of New Hampshire | PPO, POS, HDHP |
| X3B | New Hampshire | Anthem Blue-Cross Blue-Shield of New Hampshire | Traditional Indemnity, Medicaid, Medicare Advantage |
| X3C | Colorado | Anthem Blue-Cross Blue-Shield of Colorado | HMO, EPO, PPO |
| X3D | New Hampshire | Anthem Blue-Cross Blue-Shield of New Hampshire | POS, HDHP, Traditional Indemnity |
| X3E | – | Prefix Unallocated/Not Assigned | |
| X3F | New Hampshire | Anthem Blue-Cross Blue-Shield of New Hampshire | EPO, PPO, POS |
| X3G | New Hampshire | Anthem Blue-Cross Blue-Shield of New Hampshire | HDHP, Traditional Indemnity, Medicaid |
| X3H | South Dakota/Iowa | Wellmark Blue-Cross Blue-Shield | Medicare Advantage, HMO, EPO |
| X3I | – | Prefix Unallocated/Not Assigned | |
| X3J | – | Prefix Unallocated/Not Assigned | |
| X3K | – | Prefix Unallocated/Not Assigned | |
| X3L | Michigan | Blue-Cross Blue-Shield of Michigan | POS, HDHP, Traditional Indemnity |
| X3M | Virginia | Anthem Blue-Cross Blue-Shield of Virginia | Medicaid, Medicare Advantage, HMO |
| X3N | – | Prefix Unallocated/Not Assigned | |
| X3O | – | Prefix Unallocated/Not Assigned | |
| X3P | California | Anthem Blue-Cross | Medicare Advantage, HMO, EPO |
| X3Q | – | Prefix Unallocated/Not Assigned | |
| X3R | – | Prefix Unallocated/Not Assigned | |
| X3S | Colorado | Anthem Blue-Cross Blue-Shield of Colorado | EPO, Medicare Advantage, PPO |
| X3T | California | Anthem Blue-Cross | HDHP, POS, Traditional Indemnity |
| X3U | – | Prefix Unallocated/Not Assigned | |
| X3V | – | Prefix Unallocated/Not Assigned | |
| X3W | – | Prefix Unallocated/Not Assigned | |
| X3X | – | Prefix Unallocated/Not Assigned | |
| X3Y | – | Prefix Unallocated/Not Assigned | |
| X3Z | – | Prefix Unallocated/Not Assigned | |
| X4A | California | Anthem Blue-Cross | PPO, Medicaid, HDHP |
| X4B | – | Prefix Unallocated/Not Assigned | |
| X4C | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin | Medicare Advantage, EPO, PPO |
| X4D | Indiana | Anthem Blue-Cross Blue-Shield of Indiana | HDHP, Medicaid, Traditional Indemnity |
| X4E | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield | HMO, EPO, Medicare Advantage |
| X4F | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield | POS, PPO, HDHP |
| X4G | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield | Traditional Indemnity, HMO, Medicaid |
| X4H | California | Anthem Blue-Cross | EPO, PPO, POS |
| X4I | – | Prefix Unallocated/Not Assigned | |
| X4J | – | Prefix Unallocated/Not Assigned | |
| X4K | – | Prefix Unallocated/Not Assigned | |
| X4L | – | Prefix Unallocated/Not Assigned | |
| X4M | Virginia | Anthem Blue-Cross Blue-Shield of Virginia | HMO, EPO, PPO |
| X4N | Alaska | Premera Blue-Cross Blue-Shield of Alaska | POS, HDHP, Traditional Indemnity |
| X4O | – | Prefix Unallocated/Not Assigned | |
| X4P | – | Prefix Unallocated/Not Assigned | |
| X4Q | Alaska | Premera Blue-Cross Blue-Shield of Alaska | HDHP, Traditional Indemnity, Medicaid |
| X4R | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield | Medicare Advantage, HMO, EPO |
| X4S | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield | PPO, POS, HDHP |
| X4T | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield | Traditional Indemnity, Medicaid, HMO |
| X4U | – | Prefix Unallocated/Not Assigned | |
| X4V | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield | HDHP, POS, Traditional Indemnity |
| X4W | Alaska | Premera Blue-Cross Blue-Shield of Alaska | Medicaid, HMO, EPO |
| X4X | Colorado | Anthem Blue-Cross Blue-Shield of Colorado | PPO, POS, Medicare Advantage |
| X4Y | – | Prefix Unallocated/Not Assigned | |
| X4Z | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin | EPO, Medicaid, PPO |
| X5A | California | Anthem Blue-Cross | HDHP, Traditional Indemnity, POS |
| X5B | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut | Medicare Advantage, HMO, EPO |
| X5C | Virginia | Anthem Blue-Cross Blue-Shield of Virginia | PPO, POS, HDHP |
| X5D | – | Prefix Unallocated/Not Assigned | |
| X5E | – | Prefix Unallocated/Not Assigned | |
| X5F | – | Prefix Unallocated/Not Assigned | |
| X5G | – | Prefix Unallocated/Not Assigned | |
| X5H | – | Prefix Unallocated/Not Assigned | |
| X5I | – | Prefix Unallocated/Not Assigned | |
| X5J | – | Prefix Unallocated/Not Assigned | |
| X5K | – | Prefix Unallocated/Not Assigned | |
| X5L | – | Prefix Unallocated/Not Assigned | |
| X5M | Virginia | Anthem Blue-Cross Blue-Shield of Virginia | PPO, POS, HDHP |
| X5N | – | Prefix Unallocated/Not Assigned | |
| X5O | – | Prefix Unallocated/Not Assigned | |
| X5P | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut | HDHP, POS, Traditional Indemnity |
| X5Q | – | Prefix Unallocated/Not Assigned | |
| X5R | – | Prefix Unallocated/Not Assigned | |
| X5S | – | Prefix Unallocated/Not Assigned | |
| X5T | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut | EPO, Medicaid, PPO |
| X5U | – | Prefix Unallocated/Not Assigned | |
| X5V | – | Prefix Unallocated/Not Assigned | |
| X5W | – | Prefix Unallocated/Not Assigned | |
| X5X | – | Prefix Unallocated/Not Assigned | |
| X5Y | – | Prefix Unallocated/Not Assigned | |
| X5Z | – | Prefix Unallocated/Not Assigned | |
| X6A | Colorado | Anthem Blue-Cross Blue-Shield of Colorado | HMO, HDHP, EPO |
| X6B | Indiana | Anthem Blue-Cross Blue-Shield of Indiana | PPO, Medicaid, POS |
| X6C | Indiana | Anthem Blue-Cross Blue-Shield of Indiana | Traditional Indemnity, Medicare Advantage, HMO |
| X6D | Indiana | Anthem Blue-Cross Blue-Shield of Indiana | EPO, POS, HDHP |
| X6E | Indiana | Anthem Blue-Cross Blue-Shield of Indiana | Medicaid, PPO, Traditional Indemnity |
| X6F | Alaska | Premera Blue-Cross Blue-Shield of Alaska | HMO, Medicare Advantage, EPO |
| X6G | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut | HDHP, POS, PPO |
| X6H | Indiana | Anthem Blue-Cross Blue-Shield of Indiana | Traditional Indemnity, HMO, Medicaid |
| X6I | – | Prefix Unallocated/Not Assigned | |
| X6J | Indiana | Anthem Blue-Cross Blue-Shield of Indiana | POS, PPO, Traditional Indemnity |
| X6K | Indiana | Anthem Blue-Cross Blue-Shield of Indiana | Medicaid, HMO, HDHP |
| X6L | Indiana | Anthem Blue-Cross Blue-Shield of Indiana | EPO, Medicare Advantage, POS |
| X6M | Virginia | Anthem Blue-Cross Blue-Shield of Virginia | PPO, Traditional Indemnity, HMO |
| X6N | Indiana | Anthem Blue-Cross Blue-Shield of Indiana | HDHP, EPO, Medicaid |
| X6O | – | Prefix Unallocated/Not Assigned | |
| X6P | Indiana | Anthem Blue-Cross Blue-Shield of Indiana | HMO, PPO, HDHP |
| X6Q | Indiana | Anthem Blue-Cross Blue-Shield of Indiana | Medicaid, EPO, Traditional Indemnity |
| X6R | Indiana | Anthem Blue-Cross Blue-Shield of Indiana | Medicare Advantage, POS, HMO |
| X6S | Indiana | Anthem Blue-Cross Blue-Shield of Indiana | HDHP, PPO, Traditional Indemnity |
| X6T | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut | EPO, Medicaid, HMO |
| X6U | Indiana | Anthem Blue-Cross Blue-Shield of Indiana | POS, HDHP, Medicare Advantage |
| X6V | Indiana | Anthem Blue-Cross Blue-Shield of Indiana | Traditional Indemnity, EPO, PPO |
| X6W | – | Prefix Unallocated/Not Assigned | |
| X6X | – | Prefix Unallocated/Not Assigned | |
| X6Y | – | Prefix Unallocated/Not Assigned | |
| X6Z | – | Prefix Unallocated/Not Assigned | |
| X7A | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut | Traditional Indemnity, POS, HMO |
| X7B | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut | PPO, Medicare Advantage, EPO |
| X7C | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut | Medicaid, HDHP, Traditional Indemnity |
| X7D | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut | HMO, POS, Medicare Advantage |
| X7E | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut | EPO, PPO, HDHP |
| X7F | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut | Traditional Indemnity, Medicaid, HMO |
| X7G | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut | Medicare Advantage, EPO, POS |
| X7H | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut | HDHP, PPO, Traditional Indemnity |
| X7I | – | Prefix Unallocated/Not Assigned | |
| X7J | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut | POS, Medicare Advantage, HDHP |
| X7K | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut | Traditional Indemnity, PPO, Medicaid |
| X7L | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut | EPO, HMO, POS |
| X7M | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut | HDHP, Traditional Indemnity, Medicare Advantage |
| X7N | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut | Medicaid, PPO, EPO |
| X7O | – | Prefix Unallocated/Not Assigned | |
| X7P | Connecticut | Anthem Blue-Cross Blue-Shield of Connecticut | Medicare Advantage, POS, HMO |
| X7Q | – | Prefix Unallocated/Not Assigned | |
| X7R | – | Prefix Unallocated/Not Assigned | |
| X7S | – | Prefix Unallocated/Not Assigned | |
| X7T | – | Prefix Unallocated/Not Assigned | |
| X7U | – | Prefix Unallocated/Not Assigned | |
| X7V | – | Prefix Unallocated/Not Assigned | |
| X7W | Alaska | Premera Blue-Cross Blue-Shield of Alaska | Medicaid, HDHP, Traditional Indemnity |
| X7X | – | Prefix Unallocated/Not Assigned | |
| X7Y | Alaska | Premera Blue-Cross Blue-Shield of Alaska | HDHP, Medicare Advantage, PPO |
| X7Z | – | Prefix Unallocated/Not Assigned | |
| X8A | California | Anthem Blue-Cross | EPO, POS, HDHP |
| X8B | California | Anthem Blue-Cross | Medicare Advantage, PPO, Traditional Indemnity |
| X8C | Oregon/Idaho/Utah/Washington | Regence Blue-Cross Blue-Shield | Medicaid, HMO, EPO |
| X8D | – | Prefix Unallocated/Not Assigned | |
| X8E | – | Prefix Unallocated/Not Assigned | |
| X8F | – | Prefix Unallocated/Not Assigned | |
| X8G | – | Prefix Unallocated/Not Assigned | |
| X8H | – | Prefix Unallocated/Not Assigned | |
| X8I | – | Prefix Unallocated/Not Assigned | |
| X8J | – | Prefix Unallocated/Not Assigned | |
| X8K | – | Prefix Unallocated/Not Assigned | |
| X8L | Ohio | Anthem Blue-Cross Blue-Shield of Ohio | HDHP, POS, Traditional Indemnity |
| X8M | California | Anthem Blue-Cross | Medicare Advantage, PPO, Medicaid |
| X8N | – | Prefix Unallocated/Not Assigned | |
| X8O | – | Prefix Unallocated/Not Assigned | |
| X8P | – | Prefix Unallocated/Not Assigned | |
| X8Q | – | Prefix Unallocated/Not Assigned | |
| X8R | – | Prefix Unallocated/Not Assigned | |
| X8S | California | Anthem Blue-Cross | HMO, Medicaid, EPO |
| X8T | – | Prefix Unallocated/Not Assigned | |
| X8U | – | Prefix Unallocated/Not Assigned | |
| X8V | – | Prefix Unallocated/Not Assigned | |
| X8W | – | Prefix Unallocated/Not Assigned | |
| X8X | – | Prefix Unallocated/Not Assigned | |
| X8Y | – | Prefix Unallocated/Not Assigned | |
| X8Z | – | Prefix Unallocated/Not Assigned | |
| X9A | California | Anthem Blue-Cross | HDHP, HMO, Medicare Advantage |
| X9B | California | Anthem Blue-Cross | EPO, Traditional Indemnity, POS |
| X9C | – | Prefix Unallocated/Not Assigned | |
| X9D | California | Anthem Blue-Cross | Medicare Advantage, HDHP, Traditional Indemnity |
| X9E | – | Prefix Unallocated/Not Assigned | |
| X9F | Georgia | Anthem Blue-Cross blue Shield of Georgia | HMO, HDHP, Medicare Advantage |
| X9G | California | Anthem Blue-Cross | Traditional Indemnity, PPO, EPO |
| X9H | California | Anthem Blue-Cross | Medicaid, POS, HDHP |
| X9I | – | Prefix Unallocated/Not Assigned | |
| X9J | – | Prefix Unallocated/Not Assigned | |
| X9K | – | Prefix Unallocated/Not Assigned | |
| X9L | – | Prefix Unallocated/Not Assigned | |
| X9M | California | Anthem Blue-Cross | Medicaid, HDHP, POS |
| X9N | Pennsylvania | Highmark Blue-Cross Blue-Shield of Pennsylvania | HMO, Traditional Indemnity, PPO |
| X9O | – | Prefix Unallocated/Not Assigned | |
| X9P | Wisconsin | Anthem Blue-Cross Blue-Shield of Wisconsin | POS, Medicaid, Traditional Indemnity |
| X9Q | – | Prefix Unallocated/Not Assigned | |
| X9R | Vermont | Blue Cross and Blue Shield | HDHP, Medicare Advantage, POS |
| X9S | California | Anthem Blue-Cross | Traditional Indemnity, Medicaid, HMO |
| X9T | – | Prefix Unallocated/Not Assigned | |
| X9U | – | Prefix Unallocated/Not Assigned | |
| X9V | – | Prefix Unallocated/Not Assigned | |
| X9W | – | Prefix Unallocated/Not Assigned | |
| X9X | – | Prefix Unallocated/Not Assigned | |
| X9Y | – | Prefix Unallocated/Not Assigned | |
| X9Z | – | Prefix Unallocated/Not Assigned |
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Frequently asked questions
Do BCBS prefixes provide information about coverage area?
Yes, BCBS prefixes help determine the coverage area by identifying the specific Blue Cross Blue Shield company and its geographic region.
How do BCBS prefixes interact with out-of-network providers?
BCBS prefixes identify the specific BCBS plan a member belongs to, allowing out-of-network providers to route claims correctly for processing, ensuring faster and accurate claim processing despite higher deductibles and lower reimbursement rates.
What should I do if my BCBS prefix is incorrect on my card?
If your BCBS prefix is incorrect, verify the prefix on your card, contact BCBS customer service, and check any claim filing instructions on your card. Avoid guessing the prefix to prevent delays in processing claims.
Can the BCBS prefix help in identifying fraudulent activities?
No, the BCBS prefix alone cannot reliably identify fraudulent activities. Similar prefixes are used by many other insurance companies, and fraudsters can obtain genuine member ID cards through various means. Detecting fraud requires verifying member information, monitoring for unusual activity, and being aware of common fraud schemes like upcoding and phantom billing.
How often are new BCBS prefixes issued?
New BCBS prefixes are issued based on member enrollment and plan changes, rather than on a set schedule. They are assigned when new members join or existing members switch plans, making the issuance frequency variable and driven by member activity.
For general informational purposes. Payer requirements, contractual terms, and applicable rules should be verified for the situation involved.