Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 9877 LEVEL 3 COMMUNICATIONS, LLC - IA

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
712-977 4 Milford IA SXCYIA78X1X  630   2022-02-18   
712-992 7 Logan IA BLLVNEBL5MD  644   2025-06-13   

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

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