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

NXX: 535

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
303-535 A Fort Lupton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
303-535 0 Fort Lupton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
303-535 1 Fort Lupton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
303-535 2 Fort Lupton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
303-535 3 Fort Lupton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
303-535 4 Fort Lupton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
303-535 5 Fort Lupton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
303-535 6 Fort Lupton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
303-535 7 Fort Lupton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
303-535 8 Fort Lupton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      
303-535 9 Fort Lupton CO DNVTCOZIDS1  026D ONVOY, LLC - CO 656      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.