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: 404

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-404 A Kyle TX   793K TWC IP ENABLED SERVICES, LLC 558   2025-01-29   
737-404 0 Kyle TX   793K TWC IP ENABLED SERVICES, LLC 558      
737-404 1 Kyle TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-404 2 Kyle TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-404 3 Kyle TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-404 4 Kyle TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558      
737-404 5 Kyle TX AUSTTXUH5MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558      
737-404 6 Kyle TX AUSTTXGR09Z  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 558      
737-404 7 Kyle TX AUSTTXEE7MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 558      
737-404 8 Kyle TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558      
737-404 9 Kyle TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.