Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 1134 COLO TEL. CO.

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
641-377 A Colo IA COLOIAXODS0  632      
641-377 0 Colo IA COLOIAXODS0  632      
641-377 1 Colo IA COLOIAXODS0  632      
641-377 2 Colo IA COLOIAXODS0  632      
641-377 3 Colo IA COLOIAXODS0  632      
641-377 4 Colo IA COLOIAXODS0  632      
641-377 5 Colo IA COLOIAXODS0  632      
641-377 7 Colo IA COLOIAXODS0  632      
641-377 8 Colo IA COLOIAXODS0  632      
641-377 9 Colo IA COLOIAXODS0  632      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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