Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 483 [Rate centres in NPA 483] [Dial plan for NPA 483]

NXX: 900

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
483-900 A Montgomery AL   807C INTRADO COMMUNICATIONS LLC 478   2026-10-08   
483-900 9 Montgomery AL   807C INTRADO COMMUNICATIONS LLC 478   2026-10-08   

Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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