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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
737-233 A Elgin TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2018-05-13   
737-233 0 Elgin TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2018-05-13   
737-233 2 Elgin TX   506J TWILIO INTERNATIONAL, INC. 558   2020-10-07   
737-233 3 Elgin TX   158H INVOXIO INCORPORATED 558   2018-07-29   
737-233 4 Elgin TX   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 558   2020-03-27   
737-233 5 Elgin TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 558   2020-09-13   
737-233 7 Elgin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2020-07-09   
737-233 8 Elgin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2020-07-09   
737-233 9 Elgin TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 558   2020-07-09   

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.