BCBS Alpha Prefix List

BCBS Alpha prefix List are used to identify appropriate Blue Cross Blue Shield Plan in order to route the claims to the correct address or to contact the correct department.

BCBS Alpha prefix List from AAA to ZZZ

Most of the BCBS Members policy number or subscriber number assigned with 3 digit Alpha prefix along with member ID number as a part of unique identification number.

Blue Cross Blue Shield alpha prefix is always a three letters followed by the member's ID number and which can be up to 14 digits except Federal Employee Program.

BCBS Federal Employee Program-FEP ID starts with letter "R" follow by the member's ID number.

BCBS Alpha prefix acts as a key element or plays an important role while confirming members eligibility and coverage.

Two type of alpha prefix

  • Plan Specific
  • Account Specific

Plan Specific:

In this the first two alpha prefix identifies the plan and the third prefix identifies the product the member currently enrolled in.


Alpha prefix “ZGP”

In this first and second character tells about the specific plan and the last character tells about the product

Z – Plan

G – Plan

P – PPO product

Account Specific:

In Account Specific prefixes will associate to the employer group, hence this are assigned to national accounts.

For all 3 digit alpha prefix identification number, eligibility can be obtained at 800-676-2583. All you have to do is call this number and provide a 3 digit alpha prefix to the operator, they will transfer the call to the particular member’s plan.

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