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: 900

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
830-900 A Uvalde TX SNANTX91SMD  6529 T-MOBILE USA, INC. 566      
830-900 0 Uvalde TX SNANTX91SMD  6529 T-MOBILE USA, INC. 566   2012-12-07   
830-900 1 Uvalde TX SNANTXDIRMD  903C ONVOY, LLC - TX 566   2010-12-17   
830-900 2 Uvalde TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2013-09-26   
830-900 3 Uvalde TX SNANTXDIRMD  903C ONVOY, LLC - TX 566   2011-11-22   
830-900 4 Uvalde TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2013-03-11   
830-900 5 Uvalde TX SNANTXCA58Z  516C AT&T CORP. 566   2011-03-31   
830-900 6 Uvalde TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2012-09-14   
830-900 7 Uvalde TX SNANTXCA44Z  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 566   2011-01-14   
830-900 8 Uvalde TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2012-01-20   
830-900 9 Uvalde TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2011-08-25   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.