Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 7341 XO COMMUNICATIONS SERVICES, INC. - PA

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
412-510 A Pittsburgh Zone 1 PA PITBPADTX9X  234      
412-510 0 Pittsburgh Zone 1 PA   234   2017-04-23   
484-244 A Allentown (Lehigh) PA PHLAPAFGDSS  228      
484-244 0 Allentown (Lehigh) PA   228      
484-244 2 Allentown (Lehigh) PA   228      
484-244 3 Allentown (Lehigh) PA   228      
484-244 4 Allentown (Lehigh) PA   228      
484-244 5 Allentown (Lehigh) PA   228      
484-244 6 Allentown (Lehigh) PA   228      
484-244 7 Allentown (Lehigh) PA   228      
484-751 A Philadelphia Suburban Zone 30 PA PHLAPAFGDSS  228      
484-751 0 Philadelphia Suburban Zone 30 PA   228      
484-751 1 Philadelphia Suburban Zone 30 PA   228      
484-751 9 Philadelphia Suburban Zone 30 PA   228      
570-561 A Scranton PA SCTNPASCXPY  232      
570-561 0 Scranton PA   232      
570-561 1 Scranton PA   232      
570-561 2 Scranton PA   232      
717-265 A Harrisburg City Zone-1 PA HRBGPAHA1MD  226      
717-265 0 Harrisburg City Zone-1 PA   226      
717-265 2 Harrisburg City Zone-1 PA   226      
724-803 A Avella PA PITBPADTX9X  234      
724-803 0 Avella PA   234   2005-09-16   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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