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.

Switch: PHLAPAMKXSX

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
610-862 A Philadelphia Suburban Zone 31 PA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 228      
610-886 A Philadelphia Suburban Zone 22 PA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 228      
610-887 A Philadelphia Suburban Zone 17 PA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 228      
610-903 A Exton PA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 228      
610-915 A Philadelphia Suburban Zone 14 PA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 228      
610-934 A Philadelphia Suburban Zone 23 PA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 228      
610-946 A Philadelphia Suburban Zone 13 PA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 228      
610-956 A Philadelphia Suburban Zone 12 PA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 228      
610-977 A Philadelphia Suburban Zone 26 PA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 228      
610-978 A Slatington PA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 228      
610-991 A Easton PA 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 228      

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Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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