Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 254 [Rate centres in NPA 254] [Dial plan for NPA 254]

NXX: 321

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
254-321 A Burlington TX KLLNTXXARMD  508J CENTURYLINK COMMUNICATIONS, LLC 556      
254-321 0 Burlington TX   903C ONVOY, LLC - TX 556   2019-07-10   
254-321 1 Burlington TX   903C ONVOY, LLC - TX 556   2021-03-15   
254-321 2 Burlington TX   903C ONVOY, LLC - TX 556   2019-10-28   
254-321 3 Burlington TX   903C ONVOY, LLC - TX 556   2019-10-28   
254-321 4 Burlington TX   903C ONVOY, LLC - TX 556   2020-12-18   
254-321 5 Burlington TX   903C ONVOY, LLC - TX 556   2020-12-18   
254-321 6 Burlington TX   004F BANDWIDTH.COM CLEC, LLC - TX 556   2022-03-11   
254-321 7 Burlington TX   508J CENTURYLINK COMMUNICATIONS, LLC 556   2015-02-21   
254-321 8 Burlington TX   903C ONVOY, LLC - TX 556   2021-03-15   
254-321 9 Burlington TX   004F BANDWIDTH.COM CLEC, LLC - TX 556   2020-03-01   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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