Local Calling Guide
Area code/prefix search
NPA: 631 [Rate centres in NPA 631] [Dial plan for NPA 631]
NXX: 217
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
631-217 | A | Stony Brook | NY | NYCMNYCZDS0 | 8667 AMERICAN NETWORK, INC. | 132 |
Last updated: Tue, 07 Oct 2025 16:47:53 UTC
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