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: 830 [Rate centres in NPA 830] [Dial plan for NPA 830]

NXX: 261

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
830-261 A Uvalde TX SNAQTXKY7MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 566      
830-261 0 Uvalde TX SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2005-06-18   
830-261 1 Uvalde TX SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2005-06-18   
830-261 2 Uvalde TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2014-10-20   
830-261 3 Uvalde TX SNANTXDIRMD  903C ONVOY, LLC - TX 566   2013-05-28   
830-261 4 Uvalde TX SNAQTXKY7MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 566      
830-261 5 Uvalde TX SNANTXCA44Z  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 566   2007-03-27   
830-261 6 Uvalde TX SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2006-10-30   
830-261 7 Uvalde TX SNANTXCA85Z  145J TERRA NOVA TELECOM INC. 566   2024-05-26   
830-261 8 Uvalde TX SNANTX91X7Y  5562 METROPCS, INC. 566   2004-05-10   
830-261 9 Uvalde TX SNANTX91X7Y  5562 METROPCS, INC. 566   2004-05-10   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.