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: 453

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
720-453 A Longmont CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-453 0 Longmont CO AURRCO20AMD  6567 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 656      
720-453 1 Longmont CO HLRNCOFP1MD  508J CENTURYLINK COMMUNICATIONS, LLC 656      
720-453 2 Longmont CO DNVRCOMAXGZ  078F BANDWIDTH.COM CLEC, LLC - CO 656      
720-453 3 Longmont CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-453 4 Longmont CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-453 5 Longmont CO DNVRCOMD4MD  6010 NEW CINGULAR WIRELESS PCS, LLC 656      
720-453 6 Longmont CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-453 7 Longmont CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-453 8 Longmont CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      
720-453 9 Longmont CO DNVRCOII3MD  6529 T-MOBILE USA, INC. 656      

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.