Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 731 [Rate centres in NPA 731] [Dial plan for NPA 731]

NXX: 257

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
731-257 A Parsons TN JCSNTNNGPS0  704C CHARTER FIBERLINK-TENNESSEE, LLC - TN 468      
731-257 0 Parsons TN MMPHTN32X5X  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 468   2019-01-08   
731-257 1 Parsons TN JCSNTNNGPS0  704C CHARTER FIBERLINK-TENNESSEE, LLC - TN 468   2008-12-25   
731-257 2 Parsons TN MMPHTNMA38Z  525E ONVOY, LLC - TN 468   2019-12-19   
731-257 3 Parsons TN MMPHTNMA38Z  525E ONVOY, LLC - TN 468   2023-10-29   
731-257 4 Parsons TN MMPHTNMA38Z  525E ONVOY, LLC - TN 468   2021-04-05   
731-257 5 Parsons TN MMPHTNMA38Z  525E ONVOY, LLC - TN 468   2021-04-05   
731-257 6 Parsons TN MMPHTNMA38Z  525E ONVOY, LLC - TN 468   2021-10-31   
731-257 9 Parsons TN MMPHTNMA38Z  525E ONVOY, LLC - TN 468   2023-10-29   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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