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: AURSCOFW2MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
720-698 9 Longmont CO 073H TELNYX LLC 656   2022-07-11   
720-856 5 Fort Lupton CO 073H TELNYX LLC 656   2022-05-22   
720-861 8 Georgetown CO 073H TELNYX LLC 656   2022-08-01   
720-952 0 Deckers CO 073H TELNYX LLC 656   2022-08-27   
720-964 0 Longmont CO 073H TELNYX LLC 656   2022-11-21   
970-839 A Silt CO 073H TELNYX LLC 656      
970-839 0 Silt CO 073H TELNYX LLC 656   2021-07-24   
970-902 1 Grand Junction CO 073H TELNYX LLC 656   2022-03-05   
970-994 0 Olathe CO 073H TELNYX LLC 656   2022-05-14   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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