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.

OCN: 0031 WARREN TEL. CO.

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
207-273 A Warren ME WRRNMEXAPS0  120      
207-273 1 Warren ME WRRNMEXAPS0  120      
207-273 2 Warren ME WRRNMEXAPS0  120      
207-273 3 Warren ME WRRNMEXAPS0  120      
207-273 4 Warren ME WRRNMEXAPS0  120      
207-273 5 Warren ME WRRNMEXAPS0  120      

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.