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: 618

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-618 A Lampasas TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558      
737-618 0 Lampasas TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2016-01-08   
737-618 1 Lampasas TX AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2017-05-27   
737-618 2 Lampasas TX AUSUTXNIGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2016-02-19   
737-618 3 Lampasas TX AUSUTX78DS0  7249 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 558   2016-10-16   
737-618 4 Lampasas TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2016-04-06   
737-618 5 Lampasas TX AUSTTXGR03Z  903C ONVOY, LLC - TX 558   2016-04-06   
737-618 6 Lampasas TX AUSYTXFC0MD  004F BANDWIDTH.COM CLEC, LLC - TX 558   2016-07-23   
737-618 7 Lampasas TX AUSWTXGXBMD  5562 METROPCS, INC. 558   2016-05-01   
737-618 8 Lampasas TX AUSWTXGXBMD  5562 METROPCS, INC. 558   2016-06-02   
737-618 9 Lampasas TX AUSWTXGXBMD  6529 T-MOBILE USA, INC. 558   2016-01-08   

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.