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: 512 [Rate centres in NPA 512] [Dial plan for NPA 512]

NXX: 210

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
512-210 A San Marcos TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558      
512-210 0 San Marcos TX AUSWTXGX3MD  6529 T-MOBILE USA, INC. 558   2015-09-20   
512-210 1 San Marcos TX AUSWTXGX3MD  6529 T-MOBILE USA, INC. 558   2015-09-20   
512-210 2 San Marcos TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2015-10-01   
512-210 3 San Marcos TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2015-10-01   
512-210 4 San Marcos TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2015-10-01   
512-210 5 San Marcos TX AUSWTXGX3MD  6529 T-MOBILE USA, INC. 558   2015-11-11   
512-210 6 San Marcos TX AUSWTXGX3MD  6529 T-MOBILE USA, INC. 558   2015-11-11   
512-210 7 San Marcos TX AUSWTXGX3MD  6529 T-MOBILE USA, INC. 558   2015-11-11   
512-210 8 San Marcos TX AUSXTXZRPS1  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 558   2015-09-21   
512-210 9 San Marcos TX AUSUTX78AMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2015-05-11   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.