Local Calling Guide

Area code/prefix search

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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   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 468   2019-01-08   
731-257 1 Parsons TN   704C CHARTER FIBERLINK-TENNESSEE, LLC - TN 468   2008-12-25   
731-257 2 Parsons TN   525E ONVOY, LLC - TN 468   2019-12-19   
731-257 3 Parsons TN   525E ONVOY, LLC - TN 468   2023-10-29   
731-257 4 Parsons TN   525E ONVOY, LLC - TN 468   2021-04-05   
731-257 5 Parsons TN   525E ONVOY, LLC - TN 468   2021-04-05   
731-257 6 Parsons TN   525E ONVOY, LLC - TN 468   2021-10-31   
731-257 9 Parsons TN   525E ONVOY, LLC - TN 468   2023-10-29   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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