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: 776

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
210-776 A San Antonio TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566      
210-776 0 San Antonio TX SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2016-01-22   
210-776 1 San Antonio TX SNANTXDIRMD  903C ONVOY, LLC - TX 566   2011-09-08   
210-776 2 San Antonio TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2012-03-02   
210-776 3 San Antonio TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2012-03-02   
210-776 4 San Antonio TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2012-03-02   
210-776 5 San Antonio TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2012-03-02   
210-776 6 San Antonio TX SNANTX78G00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2012-03-02   
210-776 7 San Antonio TX SNANTXCA58Z  516C AT&T CORP. 566   2012-01-25   
210-776 8 San Antonio TX SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2012-01-25   
210-776 9 San Antonio TX SNANTX91X7Y  6529 T-MOBILE USA, INC. 566   2012-01-25   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.