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.

Uvalde, TX

1 2 3 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
830-261 A SNAQTXKY7MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 566      
830-261 0 SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2005-06-18   
830-261 1 SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2005-06-18   
830-261 2 SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2014-10-20   
830-261 3 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2013-05-28   
830-261 4 SNAQTXKY7MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 566      
830-261 5   793K TWC IP ENABLED SERVICES, LLC 566   2007-03-27   
830-261 6 SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2006-10-30   
830-261 7 SNANTXCA85Z  145J TERRA NOVA TELECOM INC. 566   2024-05-26   
830-261 8 SNANTX91X7Y  5562 METROPCS, INC. 566   2004-05-10   
830-261 9 SNANTX91X7Y  5562 METROPCS, INC. 566   2004-05-10   
830-275 A SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566      
830-275 0 SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566      
830-275 1 SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566      
830-275 2 SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566      
830-275 3 SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566      
830-275 4 SNAQTXKY7MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 566   2005-09-16   
830-275 5 SNANTXCADS6  177F PEERLESS NETWORK OF TEXAS, LLC - TX 566   2014-05-02   
830-275 6 SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566      
830-275 7 SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566      
830-275 8 SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566      
830-275 9 SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566      
830-278 A UVLDTXUVDS0  9533 SOUTHWESTERN BELL 566      
830-278 0 SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2007-10-29   
830-278 1 UVLDTXUVDS0  9533 SOUTHWESTERN BELL 566      
830-278 2 UVLDTXUVDS0  9533 SOUTHWESTERN BELL 566      
830-278 3 UVLDTXUVDS0  9533 SOUTHWESTERN BELL 566      
830-278 4 UVLDTXUVDS0  9533 SOUTHWESTERN BELL 566      
830-278 5 UVLDTXUVDS0  9533 SOUTHWESTERN BELL 566      
830-278 6 UVLDTXUVDS0  9533 SOUTHWESTERN BELL 566      
830-278 7 UVLDTXUVDS0  9533 SOUTHWESTERN BELL 566      
830-278 8 UVLDTXUVDS0  9533 SOUTHWESTERN BELL 566      
830-278 9 UVLDTXUVDS0  9533 SOUTHWESTERN BELL 566      
830-279 A UVLDTXUVDS0  9533 SOUTHWESTERN BELL 566      
830-279 0 UVLDTXUVDS0  9533 SOUTHWESTERN BELL 566      
830-279 1 SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2003-10-13   
830-279 2 SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2003-10-13   
830-279 3 SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2003-10-13   
830-279 4 SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2004-07-15   
830-279 5 SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2004-07-15   
830-279 6 SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2006-03-23   
830-279 7 UVLDTXUVDS0  9533 SOUTHWESTERN BELL 566      
830-279 8 SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2004-12-31   
830-279 9 SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2004-12-31   
830-289 A SNANTX91X7Y  6529 T-MOBILE USA, INC. 566      
830-289 0 SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2022-09-26   
830-289 1 SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2022-09-26   
830-289 2 SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2022-09-26   
830-289 3 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2023-08-12   
830-289 4 SNANTXDIRMD  903C ONVOY, LLC - TX 566   2023-08-12   

1 2 3 >>

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.