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: 377

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
430-377 A Longview TX   177F PEERLESS NETWORK OF TEXAS, LLC - TX 554   2025-04-26   
430-377 0 Longview TX   177F PEERLESS NETWORK OF TEXAS, LLC - TX 554   2025-04-26   

Last updated: Sat, 02 May 2026 12:20:53 UTC

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