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: 920 [Rate centres in NPA 920] [Dial plan for NPA 920]

NXX: 245

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-245 A Watertown WI MILWWIHEVMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 356      
920-245 0 Watertown WI MILWWIAUDS1  225C ONVOY, LLC - WI 356   2021-07-02   
920-245 1 Watertown WI MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2011-02-21   
920-245 2 Watertown WI MILWWI12XFX  623D TIME WARNER CABLE INFORMATION SVCS (WISCONSIN) WI 356   2007-07-18   
920-245 3 Watertown WI MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2010-10-08   
920-245 4 Watertown WI MILWWI12XFX  623D TIME WARNER CABLE INFORMATION SVCS (WISCONSIN) WI 356   2010-12-03   
920-245 5 Watertown WI MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2010-06-19   
920-245 6 Watertown WI MILWWIAUDS2  227F PEERLESS NETWORK OF WISCONSIN, LLC - WI 356   2013-05-05   
920-245 7 Watertown WI MILWWIAUDS2  227F PEERLESS NETWORK OF WISCONSIN, LLC - WI 356   2013-05-05   
920-245 8 Watertown WI MILWWIAUDS1  225C ONVOY, LLC - WI 356   2016-01-28   
920-245 9 Watertown WI MILWWIHEVMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 356      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.