Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 720 [Rate centres in NPA 720] [Dial plan for NPA 720]

NXX: 336

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-336 A Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-336 0 Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-09-16   
720-336 1 Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-09-16   
720-336 2 Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-09-17   
720-336 3 Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2010-11-15   
720-336 4 Keenesburg CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2011-03-05   
720-336 5 Keenesburg CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2011-12-08   
720-336 6 Keenesburg CO DNVTCO56AMD  8465 GLOBAL CROSSING LOCAL SERVICES, INC. - CO 656   2011-01-03   
720-336 7 Keenesburg CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2012-02-26   
720-336 8 Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2011-04-29   
720-336 9 Keenesburg CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656   2011-04-29   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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