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: 603 [Rate centres in NPA 603] [Dial plan for NPA 603]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-262 A Merrimack NH MRMCNHYADS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-262 0 Merrimack NH   5562 METRO PCS, INC. 122   2008-12-15   
603-262 1 Merrimack NH   4017 LEVEL 3 COMMUNICATIONS - NH 122   2005-09-15   
603-262 2 Merrimack NH   4286 LIGHTSHIP TELECOM, LLC - NH 122   2001-09-10   
603-262 3 Merrimack NH   4017 LEVEL 3 COMMUNICATIONS - NH 122   2004-09-04   
603-262 4 Merrimack NH   8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122   2004-04-11   
603-262 5 Merrimack NH   4112 COMCAST PHONE OF NEW HAMPSHIRE, LLC - NH 122   2006-10-31   
603-262 6 Merrimack NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-262 7 Merrimack NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-262 8 Merrimack NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-262 9 Merrimack NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      

Last updated: Sun, 31 May 2020 11:59:01 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.