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.

Delavan, MN

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
507-854 A BLERMNXBDS0  1384 THE EASTON TELEPHONE COMPANY 620      
507-854 0 BLERMNXBDS0  1384 THE EASTON TELEPHONE COMPANY 620      
507-854 1 BLERMNXBDS0  1384 THE EASTON TELEPHONE COMPANY 620      
507-854 2 BLERMNXBDS0  1384 THE EASTON TELEPHONE COMPANY 620      
507-854 3 BLERMNXBDS0  1384 THE EASTON TELEPHONE COMPANY 620      
507-854 4 BLERMNXBDS0  1384 THE EASTON TELEPHONE COMPANY 620      
507-854 5 BLERMNXBDS0  1384 THE EASTON TELEPHONE COMPANY 620      
507-854 6 BLERMNXBDS0  1384 THE EASTON TELEPHONE COMPANY 620      
507-854 7 OWTNMNOWTMD  719F MCC TELEPHONY OF MINNESOTA, LLC - MN 620   2022-08-08   
507-854 9 BLERMNXBDS0  1384 THE EASTON TELEPHONE COMPANY 620      

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.