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: 540

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
610-540 A Philadelphia Suburban Zone 28 PA KGPRPADODS0  7434 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 228      
610-540 0 Philadelphia Suburban Zone 28 PA KGPRPADODS0  7434 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 228      
610-540 1 Philadelphia Suburban Zone 28 PA KGPRPADODS0  7434 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 228      
610-540 2 Philadelphia Suburban Zone 28 PA KGPRPADODS0  7434 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 228      
610-540 3 Philadelphia Suburban Zone 28 PA PHLAPAMKX4X  624H ONVOY SPECTRUM, LLC 228      
610-540 4 Philadelphia Suburban Zone 28 PA PHLAPAMKX4X  624H ONVOY SPECTRUM, LLC 228      
610-540 5 Philadelphia Suburban Zone 28 PA PHLAPAMKGMD  551G NUSO, LLC 228      
610-540 6 Philadelphia Suburban Zone 28 PA PHLAPAMKX4X  624H ONVOY SPECTRUM, LLC 228      
610-540 7 Philadelphia Suburban Zone 28 PA PHLAPAMK20Z  002F BANDWIDTH.COM CLEC, LLC - PA 228      
610-540 8 Philadelphia Suburban Zone 28 PA PHLAPAMKGMD  551G NUSO, LLC 228      
610-540 9 Philadelphia Suburban Zone 28 PA PHLAPAMKX4X  624H ONVOY SPECTRUM, LLC 228      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.