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: 210 [Rate centres in NPA 210] [Dial plan for NPA 210]

NXX: 630

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
210-630 A San Antonio TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566      
210-630 0 San Antonio TX SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2005-08-22   
210-630 1 San Antonio TX SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2005-08-22   
210-630 2 San Antonio TX SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2005-08-22   
210-630 3 San Antonio TX SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2005-08-22   
210-630 4 San Antonio TX SNANTX91DS1  8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566   2005-06-23   
210-630 5 San Antonio TX SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2005-08-22   
210-630 6 San Antonio TX SNANTX91DS1  8434 LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 566   2005-09-09   
210-630 7 San Antonio TX SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2005-12-16   
210-630 8 San Antonio TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2005-05-12   
210-630 9 San Antonio TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2005-05-12   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.