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.

Sutton, NH

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
603-902 A MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-902 0   318J COMCAST IP PHONE, LLC 122   2010-01-25   
603-927 A STTNNHXARP0  0047 MERRIMACK COUNTY TEL. CO. 122      
603-927 0   0047 MERRIMACK COUNTY TEL. CO. 122      
603-927 1   0047 MERRIMACK COUNTY TEL. CO. 122      
603-927 2   0047 MERRIMACK COUNTY TEL. CO. 122      
603-927 4   0047 MERRIMACK COUNTY TEL. CO. 122      
603-927 6   145J TERRA NOVA TELECOM INC. 122   2025-07-11   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.