Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 430 [Rate centres in NPA 430] [Dial plan for NPA 430]

NXX: 290

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
430-290 A Detroit TX DLLTTXID1MD  6529 T-MOBILE USA, INC. 552      
430-290 0 Detroit TX   6529 T-MOBILE USA, INC. 552   2022-03-04   
430-290 1 Detroit TX   6529 T-MOBILE USA, INC. 552   2022-03-04   
430-290 2 Detroit TX   318C CEBRIDGE TELECOM TX , L.P. - TX 552   2022-03-11   
430-290 3 Detroit TX   903C ONVOY, LLC - TX 552   2022-12-21   
430-290 4 Detroit TX   793K TWC IP ENABLED SERVICES, LLC 552   2023-09-24   
430-290 5 Detroit TX   004F BANDWIDTH.COM CLEC, LLC - TX 552   2023-10-15   
430-290 6 Detroit TX   624H ONVOY SPECTRUM, LLC 552   2024-05-04   
430-290 8 Detroit TX   903C ONVOY, LLC - TX 552   2023-07-24   
430-290 9 Detroit TX   6529 T-MOBILE USA, INC. 552   2022-03-04   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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