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: 320 [Rate centres in NPA 320] [Dial plan for NPA 320]

NXX: 737

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-737 A Willmar MN STCDMNTOXEY  516J TON80 COMMUNICATIONS, LLC 626      
320-737 0 Willmar MN STCDMNTOX7Y  5816 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 626   2022-04-26   
320-737 1 Willmar MN STCDMNTOX7Y  5816 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 626   2023-09-26   
320-737 7 Willmar MN STCDMNTOXEY  516J TON80 COMMUNICATIONS, LLC 626   2022-04-25   
320-737 8 Willmar MN STCDMNTOX7Y  5816 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 626   2024-11-20   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.