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: 737 [Rate centres in NPA 737] [Dial plan for NPA 737]

NXX: 252

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-252 A Liberty Hill TX AUSTTXGRDS6  177F PEERLESS NETWORK OF TEXAS, LLC - TX 558      
737-252 0 Liberty Hill TX   004F BANDWIDTH.COM CLEC, LLC - TX 558   2020-03-26   
737-252 1 Liberty Hill TX   903C ONVOY, LLC - TX 558   2020-08-15   
737-252 2 Liberty Hill TX   318C CEBRIDGE TELECOM TX , L.P. - TX 558   2018-12-17   
737-252 3 Liberty Hill TX   903C ONVOY, LLC - TX 558   2019-10-24   
737-252 4 Liberty Hill TX   903C ONVOY, LLC - TX 558   2019-10-24   
737-252 5 Liberty Hill TX   903C ONVOY, LLC - TX 558   2019-10-24   
737-252 6 Liberty Hill TX   903C ONVOY, LLC - TX 558   2019-10-24   
737-252 7 Liberty Hill TX   903C ONVOY, LLC - TX 558   2020-08-15   
737-252 8 Liberty Hill TX   903C ONVOY, LLC - TX 558   2020-08-15   
737-252 9 Liberty Hill TX   177F PEERLESS NETWORK OF TEXAS, LLC - TX 558   2018-12-16   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.