Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: HNVIALDYPS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
256-799 A Huntsville AL 327A CENTURYLINK COMMUNICATIONS LLC - AL 477      

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

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