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: 743

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
610-743 A Reading PA WHLEPACEGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
610-743 0 Reading PA WHLEPACEGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 228      
610-743 1 Reading PA BOTWPAXB1MD  6921 LIMITLESS MOBILE, LLC 228      
610-743 2 Reading PA BOTWPAXB1MD  6921 LIMITLESS MOBILE, LLC 228      
610-743 3 Reading PA PHLAPAMKXCX  318J COMCAST IP PHONE, LLC 228      
610-743 4 Reading PA PHLAPAMKXCX  318J COMCAST IP PHONE, LLC 228      
610-743 5 Reading PA PHLAPAMKXCX  318J COMCAST IP PHONE, LLC 228      
610-743 6 Reading PA PHLAPAMKXSX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 228      
610-743 7 Reading PA PHLAPAMKXSX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 228      
610-743 8 Reading PA PHLAPAMKXSX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 228      
610-743 9 Reading PA KGPRPADODS0  7434 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 228      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.