Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 531 [Rate centres in NPA 531] [Dial plan for NPA 531]

NXX: 377

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
531-377 A Wahoo NE   6701 AERIAL COMMUNICATIONS, INC. 958   2025-05-10   
531-377 2 Wahoo NE   793K TWC IP ENABLED SERVICES, LLC 958   2026-04-09   
531-377 7 Wahoo NE   5562 METROPCS, INC. 958   2025-05-12   
531-377 9 Wahoo NE   6701 AERIAL COMMUNICATIONS, INC. 958   2025-05-10   

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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