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: 646

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-646 A Rowan IA DESMIADTFMD  221F ONVOY, LLC - IA 632      
641-646 3 Rowan IA DESMIADTFMD  221F ONVOY, LLC - IA 632   2020-11-20   
641-646 4 Rowan IA DESMIADTFMD  221F ONVOY, LLC - IA 632   2018-12-23   
641-646 5 Rowan IA DESMIADTFMD  221F ONVOY, LLC - IA 632   2020-11-20   
641-646 7 Rowan IA DESMIADTXJX  508J CENTURYLINK COMMUNICATIONS, LLC 632   2018-12-25   
641-646 8 Rowan IA DESMIADTFMD  221F ONVOY, LLC - IA 632   2019-10-28   

Last updated: Wed, 01 Jan 2025 02:39:49 UTC

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