Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 541 [Rate centres in NPA 541] [Dial plan for NPA 541]

NXX: 721

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
541-721 A Monument OR PTLDORWADS2  750E ONVOY, LLC - OR 672      
541-721 0 Monument OR PTLDOR13X4X  624H ONVOY SPECTRUM, LLC 672   2021-12-13   
541-721 1 Monument OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2012-12-15   
541-721 2 Monument OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2012-12-15   
541-721 3 Monument OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2012-12-15   
541-721 4 Monument OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2019-01-24   
541-721 5 Monument OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2019-09-21   
541-721 6 Monument OR PTLDORWAXDX  508J CENTURYLINK COMMUNICATIONS, LLC 672   2013-11-27   
541-721 7 Monument OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2008-11-02   
541-721 8 Monument OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2011-07-04   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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