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: STCDMNTOXTX

<< 1 2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
320-805 8 Glenwood MN 073H TELNYX LLC 626   2020-07-19   
320-842 1 Benson MN 073H TELNYX LLC 626   2021-09-24   
320-844 0 Avon MN 073H TELNYX LLC 626   2020-11-08   
320-853 8 Madison MN 073H TELNYX LLC 626   2020-07-20   
320-855 4 Boyd MN 073H TELNYX LLC 626   2020-07-05   
320-900 1 Clearwater MN 073H TELNYX LLC 626   2020-07-12   
320-977 0 Holdingford MN 073H TELNYX LLC 626   2020-08-17   
320-995 5 Svea MN 073H TELNYX LLC 626   2020-07-23   
605-674 0 Big Stone City SD 073H TELNYX LLC 626   2021-01-04   

<< 1 2

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.