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]

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-485 A Winsted MN WNSTMNXWRP0  1507 WINSTED TEL. CO. 628      
320-485 0 Winsted MN   8405 TELEPORT COMMUNICATIONS AMERICA, LLC - MN 628   2022-12-17   
320-485 1 Winsted MN   184D ONVOY, LLC - MN 628   2022-10-16   
320-485 2 Winsted MN   1507 WINSTED TEL. CO. 628      
320-485 3 Winsted MN   1507 WINSTED TEL. CO. 628      
320-485 4 Winsted MN   1507 WINSTED TEL. CO. 628      
320-485 5 Winsted MN   1507 WINSTED TEL. CO. 628      
320-485 6 Winsted MN   624H ONVOY SPECTRUM, LLC 628   2024-06-01   
320-485 7 Winsted MN   1507 WINSTED TEL. CO. 628      
320-485 8 Winsted MN   1507 WINSTED TEL. CO. 628      
320-485 9 Winsted MN   593K MCC TELEPHONY LLC 628   2010-05-15   
320-486 A St Cloud MN   700J WAVENATION, LLC 626   2026-02-02   
320-486 0 St Cloud MN   700J WAVENATION, LLC 626   2026-02-02   
320-487 A Ortonville MN ORVLMNAH0MD  429A MIDCONTINENT COMMUNICATIONS - MN 626      
320-488 A Randall MN STCDMNTOX4Y  965H FRACTEL, LLC 626      
320-488 4 Randall MN   145J TERRA NOVA TELECOM INC. 626   2025-06-06   
320-488 8 Randall MN   965H FRACTEL, LLC 626   2020-12-12   
320-490 A Howard Lake MN ANDLMNXBPS1  1226 WH LINK, LLC - MN 628      
320-490 0 Howard Lake MN   1226 WH LINK, LLC - MN 628      
320-490 1 Howard Lake MN   1226 WH LINK, LLC - MN 628      
320-490 2 Howard Lake MN   1226 WH LINK, LLC - MN 628      
320-490 3 Howard Lake MN   1226 WH LINK, LLC - MN 628      
320-490 4 Howard Lake MN   1226 WH LINK, LLC - MN 628      
320-490 5 Howard Lake MN   1226 WH LINK, LLC - MN 628      
320-490 6 Howard Lake MN   1226 WH LINK, LLC - MN 628      
320-490 7 Howard Lake MN   593K MCC TELEPHONY LLC 628   2010-05-15   
320-490 8 Howard Lake MN   073H TELNYX LLC 628   2020-07-19   
320-490 9 Howard Lake MN   1226 WH LINK, LLC - MN 628      
320-491 A Alexandria MN WLMRMNWIJMD  6701 AERIAL COMMUNICATIONS, INC. 626      
320-491 0 Alexandria MN   6701 AERIAL COMMUNICATIONS, INC. 626      
320-491 1 Alexandria MN   6701 AERIAL COMMUNICATIONS, INC. 626      
320-491 2 Alexandria MN   6701 AERIAL COMMUNICATIONS, INC. 626      
320-491 3 Alexandria MN   6701 AERIAL COMMUNICATIONS, INC. 626   2006-06-18   
320-491 4 Alexandria MN   6701 AERIAL COMMUNICATIONS, INC. 626   2005-11-21   
320-491 5 Alexandria MN   6701 AERIAL COMMUNICATIONS, INC. 626   2004-10-22   
320-491 6 Alexandria MN   6701 AERIAL COMMUNICATIONS, INC. 626      
320-491 7 Alexandria MN   6701 AERIAL COMMUNICATIONS, INC. 626   2004-10-08   
320-491 8 Alexandria MN   6701 AERIAL COMMUNICATIONS, INC. 626      
320-491 9 Alexandria MN   6701 AERIAL COMMUNICATIONS, INC. 626      
320-492 A St Cloud MN STCDMNTOX8X  6701 AERIAL COMMUNICATIONS, INC. 626      
320-492 0 St Cloud MN   6701 AERIAL COMMUNICATIONS, INC. 626      
320-492 1 St Cloud MN   6701 AERIAL COMMUNICATIONS, INC. 626      
320-492 2 St Cloud MN   6701 AERIAL COMMUNICATIONS, INC. 626      
320-492 3 St Cloud MN   6701 AERIAL COMMUNICATIONS, INC. 626      
320-492 4 St Cloud MN   6701 AERIAL COMMUNICATIONS, INC. 626      
320-492 5 St Cloud MN   6701 AERIAL COMMUNICATIONS, INC. 626      
320-492 6 St Cloud MN   6701 AERIAL COMMUNICATIONS, INC. 626      
320-492 7 St Cloud MN   6701 AERIAL COMMUNICATIONS, INC. 626      
320-492 8 St Cloud MN   6701 AERIAL COMMUNICATIONS, INC. 626      
320-492 9 St Cloud MN   6701 AERIAL COMMUNICATIONS, INC. 626      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.