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: 556

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
254-556 A Mart TX WACOTX01XIX  903C ONVOY, LLC - TX 556      
254-556 0 Mart TX   073H TELNYX LLC 556   2019-09-21   
254-556 1 Mart TX   515J IP HORIZON LLC 556   2021-06-05   
254-556 2 Mart TX   903C ONVOY, LLC - TX 556   2019-09-20   
254-556 3 Mart TX   903C ONVOY, LLC - TX 556   2019-09-20   
254-556 4 Mart TX   903C ONVOY, LLC - TX 556   2019-10-31   
254-556 5 Mart TX   903C ONVOY, LLC - TX 556   2019-10-31   
254-556 6 Mart TX   903C ONVOY, LLC - TX 556   2020-12-11   
254-556 7 Mart TX   903C ONVOY, LLC - TX 556   2020-12-11   
254-556 9 Mart TX   624H ONVOY SPECTRUM, LLC 556   2021-07-05   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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