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: 507 [Rate centres in NPA 507] [Dial plan for NPA 507]

NXX: 551

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
507-551 A La Crescent MN ROCHMNRO9MD  719F MCC TELEPHONY OF MINNESOTA, LLC - MN 620      
507-551 0 La Crescent MN ROCHMNHI21Z  490J DISH WIRELESS, LLC 620   2023-05-07   
507-551 2 La Crescent MN ROCHMNHH0MD  447D CHARTER FIBERLINK, LLC - MN 620   2012-11-01   
507-551 4 La Crescent MN ROCHMNROTMD  5256 LEVEL 3 COMMUNICATIONS, LLC - MN 620   2022-02-21   
507-551 5 La Crescent MN ROCHMNROXLX  5562 METROPCS, INC. 620   2016-06-03   
507-551 8 La Crescent MN ROCHMNROQMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 620   2021-06-09   
507-551 9 La Crescent MN ROCHMNRO9MD  719F MCC TELEPHONY OF MINNESOTA, LLC - MN 620   2010-07-11   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.