Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 610 [Rate centres in NPA 610] [Dial plan for NPA 610]

NXX: 338

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
610-338 A Philadelphia Suburban Zone 13 PA SPFDPASFDS0  9208 VERIZON PENNSYLVANIA, INC. 228      
610-338 0 Philadelphia Suburban Zone 13 PA SPFDPASFDS0  9208 VERIZON PENNSYLVANIA, INC. 228      
610-338 1 Philadelphia Suburban Zone 13 PA SPFDPASFDS0  9208 VERIZON PENNSYLVANIA, INC. 228      
610-338 2 Philadelphia Suburban Zone 13 PA SPFDPASFDS0  9208 VERIZON PENNSYLVANIA, INC. 228      
610-338 3 Philadelphia Suburban Zone 13 PA PHLAPAFGXXX  145J TERRA NOVA TELECOM INC. 228   2021-01-26   
610-338 4 Philadelphia Suburban Zone 13 PA PHLAPAFGGT8  3806 CORE COMMUNICATIONS, INC. - PA 228   2019-03-27   
610-338 5 Philadelphia Suburban Zone 13 PA WNRTPAAHCMA  6626 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP DBA T-MOBILE USA 228   2021-09-23   
610-338 6 Philadelphia Suburban Zone 13 PA PHLAPAFGGT8  3806 CORE COMMUNICATIONS, INC. - PA 228   2019-03-27   
610-338 7 Philadelphia Suburban Zone 13 PA PHLAPAFGGT8  3806 CORE COMMUNICATIONS, INC. - PA 228   2019-03-27   
610-338 8 Philadelphia Suburban Zone 13 PA SPFDPASFDS0  9208 VERIZON PENNSYLVANIA, INC. 228      
610-338 9 Philadelphia Suburban Zone 13 PA SPFDPASFDS0  9208 VERIZON PENNSYLVANIA, INC. 228      

Last updated: Fri, 13 May 2022 22:16:13 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.