Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 303 [Rate centres in NPA 303] [Dial plan for NPA 303]

NXX: 498

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
303-498 A Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656      
303-498 0 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2005-06-13   
303-498 1 Denver CO BITNCOMADS0  9636 QWEST CORPORATION 656   2006-12-04   
303-498 2 Denver CO BITNCOMADS0  9636 QWEST CORPORATION 656   2007-06-15   
303-498 3 Denver CO BITNCOMADS0  9636 QWEST CORPORATION 656   2007-06-15   
303-498 4 Denver CO BITNCOMADS0  9636 QWEST CORPORATION 656   2007-07-06   
303-498 5 Denver CO DNVRCOSOFMD  624H ONVOY SPECTRUM, LLC 656   2021-05-24   
303-498 6 Denver CO BITNCOMADS0  9636 QWEST CORPORATION 656   2007-07-06   
303-498 7 Denver CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656   2012-10-27   
303-498 8 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2023-06-24   
303-498 9 Denver CO ENWDCO47DS4  320E YMAX COMMUNICATIONS CORP. - CO 656   2009-03-23   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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