| N2D | Premera Blue Cross | WA | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| N2T | Premera Blue Cross | WA | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| N3Q | Premera Blue Cross | AK | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| N3T | Premera Blue Cross | WA | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| N4S | Premera Blue Cross | WA | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| N5K | CBA Blue | VT | | | Prefix Listing (Updated 02.07.25), Blue Cross and Blue Shield of Vermont |
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| N6C | CBA Blue | VT | | | Prefix Listing (Updated 02.07.25), Blue Cross and Blue Shield of Vermont |
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| N6P | Premera Blue Cross | AK | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| N8F | Premera Blue Cross | WA | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| N8P | Premera Blue Cross | WA | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| NAY | Premera Blue Cross | AK | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| NCM | CBA Blue | VT | | | Prefix Listing (Updated 02.07.25), Blue Cross and Blue Shield of Vermont |
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| NCT | Premera Blue Cross/Shared Admin | WA | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| NCW | Premera Blue Cross | WA | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| NCZ | Premera Blue Cross | WA | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| NDZ | Premera Blue Cross | AK | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| NFI | CBA Blue | VT | | | Prefix Listing (Updated 02.07.25), Blue Cross and Blue Shield of Vermont |
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| NFK | Premera Blue Cross | WA | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| NGQ | Premera Blue Cross HMO | WA | HMO | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| NJO | Horizon (New Jersey State Health Benefits Program) | NJ | | | Health Plan Information, Kean University Human Resources |
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| NJX | Horizon (New Jersey State Health Benefits Program) | NJ | PPO | | Health Plan Information, Kean University Human Resources |
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| NLQ | Premera Blue Cross | WA | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| NMZ | CBA Blue | VT | | | Prefix Listing (Updated 02.07.25), Blue Cross and Blue Shield of Vermont |
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| NNQ | Premera Blue Cross | AK | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| NNT | Premera Blue Cross | WA | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| NNW | Blue Cross and Blue Shield of Montana | MT | | | 2025 Three-Character Prefix Updated March 2025 (Blue Cross and Blue Shield of Montana) |
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| NNY | Premera Blue Cross | AK | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| NPF | Premera Blue Cross | WA | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
|---|
| NQF | Premera Blue Cross/Shared Admin | WA | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| NQN | Premera Blue Cross | WA | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| NRB | Premera Blue Cross | WA | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| NRH | Premera Blue Cross | WA | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| NRS | Premera Blue Cross | WA | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| NRZ | Premera Blue Cross | WA | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| NTK | Premera Blue Cross | AK | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| NUJ | Premera Blue Cross | WA | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| NVU | Premera Blue Cross | WA | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| NWB | Premera Blue Cross | WA | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| NWV | Premera Blue Cross | WA | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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| NXW | Premera Blue Cross/Shared Admin | WA | | | Premera Blue Cross Three Character Prefixes (Premera Blue Cross, form 020469) |
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