Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 641 [Rate centres in NPA 641] [Dial plan for NPA 641]

NXX: 250

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-250 A Manly IA DESMIADT1MD  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 632      
641-250 0 Manly IA   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632   2026-06-05   
641-250 1 Manly IA   515J IP HORIZON LLC 632   2025-09-26   
641-250 7 Manly IA DESMIADT1MD  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 632   2023-02-16   

Last updated: Sun, 17 May 2026 03:26:51 UTC

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