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: 748 [Rate centres in NPA 748] [Dial plan for NPA 748]

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
748-222 A Durango CO   557H WIDE VOICE, LLC - CO 656   2026-12-12   
748-222 2 Durango CO   557H WIDE VOICE, LLC - CO 656   2026-12-12   
748-222 3 Durango CO   557H WIDE VOICE, LLC - CO 656   2026-12-12   
748-222 4 Durango CO   557H WIDE VOICE, LLC - CO 656   2026-12-12   
748-333 A Eagle CO   557H WIDE VOICE, LLC - CO 656   2026-12-12   
748-333 2 Eagle CO   557H WIDE VOICE, LLC - CO 656   2026-12-12   
748-333 3 Eagle CO   557H WIDE VOICE, LLC - CO 656   2026-12-12   
748-333 4 Eagle CO   557H WIDE VOICE, LLC - CO 656   2026-12-12   
748-444 A Fort Collins CO   883K AHOI LLC 656   2026-12-13   
748-444 4 Fort Collins CO   883K AHOI LLC 656   2026-12-13   
748-666 A Fraser CO   026D ONVOY, LLC - CO 656   2026-12-13   
748-666 6 Fraser CO   026D ONVOY, LLC - CO 656   2026-12-13   
748-666 8 Fraser CO   026D ONVOY, LLC - CO 656   2026-12-13   
748-777 A Greeley CO   026D ONVOY, LLC - CO 656   2026-12-12   
748-777 7 Greeley CO   026D ONVOY, LLC - CO 656   2026-12-12   
748-777 8 Greeley CO   026D ONVOY, LLC - CO 656   2026-12-12   
748-800 A Gilcrest CO   026D ONVOY, LLC - CO 656   2026-12-13   
748-800 0 Gilcrest CO   026D ONVOY, LLC - CO 656   2026-12-13   
748-800 8 Gilcrest CO   026D ONVOY, LLC - CO 656   2026-12-13   
748-888 A Mead CO   557H WIDE VOICE, LLC - CO 656   2026-12-12   
748-888 4 Mead CO   557H WIDE VOICE, LLC - CO 656   2026-12-12   
748-888 7 Mead CO   557H WIDE VOICE, LLC - CO 656   2026-12-12   
748-888 8 Mead CO   557H WIDE VOICE, LLC - CO 656   2026-12-12   
748-900 A Ignacio CO   026D ONVOY, LLC - CO 656   2026-12-13   
748-900 0 Ignacio CO   026D ONVOY, LLC - CO 656   2026-12-13   
748-900 9 Ignacio CO   026D ONVOY, LLC - CO 656   2026-12-13   
748-999 A Estes Park CO   026D ONVOY, LLC - CO 656   2026-12-12   
748-999 7 Estes Park CO   114J EXIANT COMMUNICATIONS LLC 656   2026-12-14   
748-999 8 Estes Park CO   026D ONVOY, LLC - CO 656   2026-12-12   
748-999 9 Estes Park CO   026D ONVOY, LLC - CO 656   2026-12-12   

Last updated: Sun, 01 Nov 2026 02:11:49 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.