Local Calling Guide

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NPA: 303 [Rate centres in NPA 303] [Dial plan for NPA 303]

NXX: 923

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
303-923 A Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-923 0 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656   2022-06-30   
303-923 1 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-923 2 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-923 3 Denver CO DNVRCOMA39Z  318J COMCAST IP PHONE, LLC 656   2007-02-09   
303-923 4 Denver CO DNVRCOZJNMD  7421 AT&T - LOCAL 656   2002-04-30   
303-923 5 Denver CO ENWDCO47DS4  320E YMAX COMMUNICATIONS CORP. - CO 656   2008-08-29   
303-923 6 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      
303-923 7 Denver CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656   2023-06-24   
303-923 8 Denver CO ENWDCO47DS4  320E YMAX COMMUNICATIONS CORP. - CO 656   2008-08-29   
303-923 9 Denver CO DNVTCO56DS8  6118 LEVEL 3 COMMUNICATIONS, LLC - CO 656      

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

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