Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 720 [Rate centres in NPA 720] [Dial plan for NPA 720]

NXX: 884

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-884 A Denver CO DNVRCOWSDS0  9636 QWEST CORPORATION 656      
720-884 0 Denver CO DNVRCOWSDS0  9636 QWEST CORPORATION 656      
720-884 1 Denver CO DNVRCOWSDS0  9636 QWEST CORPORATION 656      
720-884 2 Denver CO DNVRCOWSDS0  9636 QWEST CORPORATION 656      
720-884 3 Denver CO DNVRCOWSDS0  9636 QWEST CORPORATION 656      
720-884 4 Denver CO DNVRCOWSDS0  9636 QWEST CORPORATION 656      
720-884 5 Denver CO DNVRCOWSDS0  9636 QWEST CORPORATION 656      
720-884 6 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-884 7 Denver CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-884 8 Denver CO DNVRCOWSDS0  9636 QWEST CORPORATION 656      
720-884 9 Denver CO   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 656      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.