Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Colo, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
641-377 A COLOIAXODS0  1134 COLO TEL. CO. 632      
641-377 0 COLOIAXODS0  1134 COLO TEL. CO. 632      
641-377 1 COLOIAXODS0  1134 COLO TEL. CO. 632      
641-377 2 COLOIAXODS0  1134 COLO TEL. CO. 632      
641-377 3 COLOIAXODS0  1134 COLO TEL. CO. 632      
641-377 4 COLOIAXODS0  1134 COLO TEL. CO. 632      
641-377 5 COLOIAXODS0  1134 COLO TEL. CO. 632      
641-377 6 DESMIAITX6X  6529 T-MOBILE USA, INC. 632   2006-09-07   
641-377 7 COLOIAXODS0  1134 COLO TEL. CO. 632      
641-377 8 COLOIAXODS0  1134 COLO TEL. CO. 632      
641-377 9 COLOIAXODS0  1134 COLO TEL. CO. 632      
641-808 A DESMIAITX6X  6529 T-MOBILE USA, INC. 632      
641-808 0   145J TERRA NOVA TELECOM INC. 632   2025-05-17   
641-808 1 BOONIA01DS1  544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 632   2018-05-14   
641-808 4 DESMIAITX6X  5562 METROPCS, INC. 632   2018-08-03   
641-808 8 DESMIAITX6X  6529 T-MOBILE USA, INC. 632   2018-04-20   
641-808 9 DESMIAITX6X  6529 T-MOBILE USA, INC. 632   2018-04-20   

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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