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: 988

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
830-988 A Sabinal TX SBNLTXSBRS0  9533 SOUTHWESTERN BELL 566      
830-988 0 Sabinal TX   177F PEERLESS NETWORK OF TEXAS, LLC - TX 566   2014-05-02   
830-988 1 Sabinal TX   9533 SOUTHWESTERN BELL 566      
830-988 2 Sabinal TX   9533 SOUTHWESTERN BELL 566      
830-988 3 Sabinal TX   145J TERRA NOVA TELECOM INC. 566   2021-01-27   
830-988 4 Sabinal TX   903C ONVOY, LLC - TX 566   2018-04-28   
830-988 5 Sabinal TX   516C AT&T CORP. 566   2011-03-31   
830-988 6 Sabinal TX   004F BANDWIDTH.COM CLEC, LLC - TX 566   2020-06-04   
830-988 7 Sabinal TX   793K TWC IP ENABLED SERVICES, LLC 566   2021-09-28   
830-988 8 Sabinal TX   903C ONVOY, LLC - TX 566   2010-11-05   
830-988 9 Sabinal TX   903C ONVOY, LLC - TX 566   2014-11-08   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.