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.

Alton, ME

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
207-394 A ALTNMEXARS1  3315 MID-MAINE TELECOM LLC 120      
207-394 0   6889 OMNIPOINT MIAMI E LICENSE, LLC 120   2025-04-05   
207-394 1   5562 METROPCS, INC. 120   2025-04-25   
207-394 2 ALTNMEXARS1  3315 MID-MAINE TELECOM LLC 120      
207-394 7 WEFDMEXA0MD  578C TIME WARNER CBL INFO SVC (ME) DBA TIME WARNER CBL 120   2014-11-28   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.