Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 4161 GLOBAL CROSSING LOCAL SERVICES, INC. - PA

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
215-525 A Philadelphia Zone 1 PA PHLBPAPU5MD  228      
215-525 0 Philadelphia Zone 1 PA PHLBPAPU5MD  228      
412-235 A Pittsburgh Zone 1 PA PITDPA550MD  234      
412-235 0 Pittsburgh Zone 1 PA PITDPA550MD  234      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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