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: 608 [Rate centres in NPA 608] [Dial plan for NPA 608]

NXX: 339

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
608-339 A Adams WI ADMSWIXARS0  0886 FRONTIER NORTH INC. - WI 354      
608-339 0 Adams WI   0886 FRONTIER NORTH INC. - WI 354      
608-339 1 Adams WI   6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2013-09-12   
608-339 2 Adams WI   0886 FRONTIER NORTH INC. - WI 354      
608-339 3 Adams WI   0886 FRONTIER NORTH INC. - WI 354      
608-339 4 Adams WI   0886 FRONTIER NORTH INC. - WI 354      
608-339 5 Adams WI   0886 FRONTIER NORTH INC. - WI 354      
608-339 6 Adams WI   0886 FRONTIER NORTH INC. - WI 354      
608-339 7 Adams WI   0886 FRONTIER NORTH INC. - WI 354      
608-339 8 Adams WI   0886 FRONTIER NORTH INC. - WI 354      
608-339 9 Adams WI   0886 FRONTIER NORTH INC. - WI 354      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.