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: 318

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
731-318 A Milan TN MMPHTN32DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 468      
731-318 0 Milan TN MMPHTNMA38Z  525E ONVOY, LLC - TN 468   2016-04-02   
731-318 1 Milan TN MMPHTNMA38Z  525E ONVOY, LLC - TN 468   2016-04-02   
731-318 2 Milan TN CRVLTNAOGT1  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 468   2019-01-01   
731-318 3 Milan TN MMPHTN32DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 468   2016-11-28   
731-318 4 Milan TN MMPHTNMA38Z  525E ONVOY, LLC - TN 468   2016-06-09   
731-318 5 Milan TN MMPHTNMA38Z  525E ONVOY, LLC - TN 468   2016-06-09   
731-318 6 Milan TN CRVLTNAOGT1  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 468   2020-02-03   
731-318 7 Milan TN MMPHTNMA38Z  525E ONVOY, LLC - TN 468   2021-03-15   
731-318 8 Milan TN MMPHTNMA94Z  073H TELNYX LLC 468   2018-09-21   
731-318 9 Milan TN MMPHTNMA38Z  525E ONVOY, LLC - TN 468   2021-03-15   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.