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: 856

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
254-856 A Marlin TX WACOTX360MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 556      
254-856 0 Marlin TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 556      
254-856 1 Marlin TX   004F BANDWIDTH.COM CLEC, LLC - TX 556   2019-06-02   
254-856 2 Marlin TX   6529 T-MOBILE USA, INC. 556   2021-04-27   
254-856 3 Marlin TX   6529 T-MOBILE USA, INC. 556   2021-04-27   
254-856 4 Marlin TX   903C ONVOY, LLC - TX 556   2021-03-15   
254-856 5 Marlin TX   903C ONVOY, LLC - TX 556   2021-03-15   
254-856 6 Marlin TX   6529 T-MOBILE USA, INC. 556   2021-04-27   
254-856 7 Marlin TX   6529 T-MOBILE USA, INC. 556   2021-04-27   
254-856 8 Marlin TX   6529 T-MOBILE USA, INC. 556   2021-09-21   
254-856 9 Marlin TX   6529 T-MOBILE USA, INC. 556   2021-03-15   

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

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