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: 400

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-400 A Plymouth WI MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356      
920-400 0 Plymouth WI MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356      
920-400 1 Plymouth WI PLMOWIXA1MD  623D TIME WARNER CABLE INFORMATION SVCS (WISCONSIN) WI 356      
920-400 2 Plymouth WI MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356      
920-400 3 Plymouth WI MILXWIILDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 356      
920-400 4 Plymouth WI MILWWIAUXZZ  965H FRACTEL, LLC 356      
920-400 5 Plymouth WI MILWWIAUDS1  225C ONVOY, LLC - WI 356      
920-400 6 Plymouth WI MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356      
920-400 7 Plymouth WI MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356      
920-400 8 Plymouth WI   225C ONVOY, LLC - WI 356      
920-400 9 Plymouth WI MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.