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: 436

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
531-436 A Chambers NE OMAHNENWXMX  6701 AERIAL COMMUNICATIONS, INC. 644   2026-01-09   
531-436 0 Chambers NE OMAHNENWXMX  6701 AERIAL COMMUNICATIONS, INC. 644   2026-01-09   
531-436 9 Chambers NE OMAHNENWXMX  6701 AERIAL COMMUNICATIONS, INC. 644   2026-01-09   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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