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: 800

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
830-800 A Seguin TX SNANTXDIRMD  903C ONVOY, LLC - TX 566      
830-800 0 Seguin TX   903C ONVOY, LLC - TX 566   2017-11-03   
830-800 1 Seguin TX   6529 T-MOBILE USA, INC. 566   2021-08-31   
830-800 2 Seguin TX   5562 METROPCS, INC. 566   2021-12-09   
830-800 3 Seguin TX   6529 T-MOBILE USA, INC. 566   2022-04-06   
830-800 4 Seguin TX   6529 T-MOBILE USA, INC. 566   2022-04-06   
830-800 5 Seguin TX   6529 T-MOBILE USA, INC. 566   2022-04-06   
830-800 6 Seguin TX   6529 T-MOBILE USA, INC. 566   2022-04-06   
830-800 7 Seguin TX   506J TWILIO INTERNATIONAL INC 566   2021-05-28   
830-800 8 Seguin TX   903C ONVOY, LLC - TX 566   2017-11-03   
830-800 9 Seguin TX   6529 T-MOBILE USA, INC. 566   2021-08-31   

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

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.