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: 370

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-370 A St Cloud MN STCDMNTOXNX  624H ONVOY SPECTRUM, LLC 626      
320-370 0 St Cloud MN STCDMNTOXNX  624H ONVOY SPECTRUM, LLC 626   2017-08-28   
320-370 1 St Cloud MN STCDMNTOX7Y  5816 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN 626   2022-03-02   
320-370 2 St Cloud MN STCDMNTOXNX  624H ONVOY SPECTRUM, LLC 626   2020-08-07   
320-370 3 St Cloud MN STCDMNTOXNX  624H ONVOY SPECTRUM, LLC 626   2020-08-07   
320-370 4 St Cloud MN STCDMNTOXNX  624H ONVOY SPECTRUM, LLC 626   2020-08-07   
320-370 6 St Cloud MN STCDMNTOXYX  7770 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 626   2018-07-27   
320-370 7 St Cloud MN STCDMNTOXYX  7770 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 626   2018-07-27   
320-370 8 St Cloud MN STCDMNTOXYX  7770 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 626   2018-07-27   
320-370 9 St Cloud MN STCDMNTOXRX  980E BANDWIDTH.COM CLEC, LLC - MN 626   2022-11-17   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.