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: FRDRWIXA4MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
320-242 4 Cloverton MN 184D ONVOY, LLC - MN 352   2024-04-20   
320-417 4 West Danbury MN 184D ONVOY, LLC - MN 352   2024-04-20   
534-534 A Webster WI 225C ONVOY, LLC - WI 352   2024-04-20   
534-534 5 Webster WI 225C ONVOY, LLC - WI 352   2024-04-20   
715-244 2 Dairyland WI 225C ONVOY, LLC - WI 352   2024-04-20   
715-566 9 Frederic WI 225C ONVOY, LLC - WI 352   2024-04-20   
715-653 5 Lewis WI 225C ONVOY, LLC - WI 352   2024-04-20   
715-656 2 Danbury WI 225C ONVOY, LLC - WI 352   2024-04-20   
715-733 3 Webb Lake WI 225C ONVOY, LLC - WI 352   2024-04-20   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.