Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 610 [Rate centres in NPA 610] [Dial plan for NPA 610]

NXX: 907

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
610-907 A Philadelphia Suburban Zone 31 PA PHLBPAPU9MD  6630 USA MOBILITY WIRELESS, INC. 228      

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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