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: 410

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-410 A Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
720-410 0 Denver CO   5562 METROPCS, INC. 656   2014-08-15   
720-410 1 Denver CO   5562 METROPCS, INC. 656   2014-08-15   
720-410 2 Denver CO   318J COMCAST IP PHONE, LLC 656   2014-08-11   
720-410 3 Denver CO   5562 METROPCS, INC. 656   2014-08-15   
720-410 4 Denver CO   5562 METROPCS, INC. 656   2014-08-15   
720-410 5 Denver CO   026D ONVOY, LLC - CO 656   2014-09-26   
720-410 6 Denver CO   026D ONVOY, LLC - CO 656   2014-09-26   
720-410 7 Denver CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2014-10-20   
720-410 8 Denver CO   6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656   2015-05-26   
720-410 9 Denver CO   026D ONVOY, LLC - CO 656   2014-10-24   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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