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: 731 [Rate centres in NPA 731] [Dial plan for NPA 731]

NXX: 747

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
731-747 A Humboldt TN MMPHTNMA38Z  525E ONVOY, LLC - TN 468      
731-747 0 Humboldt TN   515J IP HORIZON LLC 468   2022-01-28   
731-747 1 Humboldt TN MMPHTNMAYUX  490J DISH WIRELESS, LLC 468   2023-10-30   
731-747 2 Humboldt TN MMPHTNMA38Z  525E ONVOY, LLC - TN 468   2016-05-25   
731-747 3 Humboldt TN MMPHTNMA38Z  525E ONVOY, LLC - TN 468   2016-05-25   
731-747 4 Humboldt TN MMPHTNMA38Z  525E ONVOY, LLC - TN 468   2016-05-25   
731-747 5 Humboldt TN MMPHTN32X5X  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 468   2016-12-01   
731-747 6 Humboldt TN MMPHTNMA94Z  073H TELNYX LLC 468   2017-03-29   
731-747 7 Humboldt TN MMPHTNMA38Z  525E ONVOY, LLC - TN 468   2016-04-27   
731-747 8 Humboldt TN MMPHTNMA38Z  525E ONVOY, LLC - TN 468   2016-04-27   
731-747 9 Humboldt TN MMPHTNMAYMX  506J TWILIO INTERNATIONAL, INC. 468   2021-07-30   

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.