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.

Switch: DNVTCOZIDS1

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
983-212 2 Denver CO 026D ONVOY, LLC - CO 656   2024-11-18   
983-212 3 Denver CO 026D ONVOY, LLC - CO 656   2024-11-18   
983-213 0 Longmont CO 026D ONVOY, LLC - CO 656   2024-12-31   
983-213 1 Longmont CO 026D ONVOY, LLC - CO 656   2024-12-31   
983-444 0 Denver CO 026D ONVOY, LLC - CO 656   2024-04-02   
983-444 1 Denver CO 026D ONVOY, LLC - CO 656   2024-04-02   
983-444 2 Denver CO 026D ONVOY, LLC - CO 656   2024-04-02   
983-444 6 Denver CO 026D ONVOY, LLC - CO 656   2024-04-02   
983-444 7 Denver CO 026D ONVOY, LLC - CO 656   2024-04-02   
983-444 8 Denver CO 026D ONVOY, LLC - CO 656   2024-04-02   
983-983 6 Longmont CO 026D ONVOY, LLC - CO 656   2024-04-04   
983-999 0 Denver CO 026D ONVOY, LLC - CO 656   2023-10-09   
983-999 2 Denver CO 026D ONVOY, LLC - CO 656   2023-10-09   
983-999 8 Denver CO 026D ONVOY, LLC - CO 656   2023-10-09   

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Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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