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: 510

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-510 A Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
720-510 0 Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2017-07-31   
720-510 1 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2017-07-26   
720-510 2 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2017-07-26   
720-510 3 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2017-07-26   
720-510 4 Denver CO DNVRCO37DS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656   2017-07-31   
720-510 5 Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2017-07-31   
720-510 6 Denver CO DNVRCOETPS0  3467 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 656   2017-07-31   
720-510 7 Denver CO HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656   2017-08-05   
720-510 8 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2017-07-31   
720-510 9 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2017-07-31   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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