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: 301

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-301 A Montevideo MN STCDMNTOX3X  184D ONVOY, LLC - MN 626      
320-301 0 Montevideo MN STCDMNTOX3X  184D ONVOY, LLC - MN 626      
320-301 1 Montevideo MN STCDMNTOX3X  184D ONVOY, LLC - MN 626      
320-301 2 Montevideo MN STCDMNTOX3X  184D ONVOY, LLC - MN 626      
320-301 3 Montevideo MN STCDMNTONMD  7783 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MN 626      
320-301 4 Montevideo MN STCDMNTOXUX  8405 TELEPORT COMMUNICATIONS AMERICA, LLC - MN 626      
320-301 5 Montevideo MN BOYDMN02RS0  2836 FARMERS MUTUAL TELEPHONE COMPANY - MN 626      
320-301 6 Montevideo MN STCDMNTOXHX  508J CENTURYLINK COMMUNICATIONS, LLC 626      
320-301 7 Montevideo MN STCDMNTOX3X  184D ONVOY, LLC - MN 626      
320-301 8 Montevideo MN STCDMNTOXTX  073H TELNYX LLC 626      
320-301 9 Montevideo MN STCDMNTOX3X  184D ONVOY, LLC - MN 626      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.