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: 737 [Rate centres in NPA 737] [Dial plan for NPA 737]

NXX: 206

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-206 A Bastrop TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558      
737-206 0 Bastrop TX   6529 T-MOBILE USA, INC. 558   2016-01-08   
737-206 1 Bastrop TX   6529 T-MOBILE USA, INC. 558   2016-01-08   
737-206 2 Bastrop TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2016-01-20   
737-206 3 Bastrop TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2016-01-20   
737-206 4 Bastrop TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2016-02-05   
737-206 5 Bastrop TX   903C ONVOY, LLC - TX 558   2017-11-04   
737-206 6 Bastrop TX   6529 T-MOBILE USA, INC. 558   2018-09-15   
737-206 7 Bastrop TX   903C ONVOY, LLC - TX 558   2016-03-03   
737-206 8 Bastrop TX   903C ONVOY, LLC - TX 558   2016-03-03   
737-206 9 Bastrop TX   6529 T-MOBILE USA, INC. 558   2016-01-08   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.