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: 406

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
830-406 A Seguin TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566      
830-406 0 Seguin TX   6664 SPRINT SPECTRUM, L.P. 566   2015-10-18   
830-406 1 Seguin TX   6664 SPRINT SPECTRUM, L.P. 566   2015-10-18   
830-406 2 Seguin TX   583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 566   2016-01-20   
830-406 3 Seguin TX   903C ONVOY, LLC - TX 566   2016-02-22   
830-406 4 Seguin TX   903C ONVOY, LLC - TX 566   2016-02-22   
830-406 5 Seguin TX   903C ONVOY, LLC - TX 566   2016-04-23   
830-406 6 Seguin TX   903C ONVOY, LLC - TX 566   2016-02-11   
830-406 7 Seguin TX   903C ONVOY, LLC - TX 566   2016-04-23   
830-406 8 Seguin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2015-10-17   
830-406 9 Seguin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2015-10-17   

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

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.