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.

Switch: MDSNWI11XEY

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
608-977 1 Madison WI 6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2015-10-12   
608-977 2 Madison WI 6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2015-11-21   
608-981 0 Briggsville WI 6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2023-08-18   
608-982 1 Madison WI 6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2018-07-06   
608-982 6 Madison WI 6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2018-07-06   
608-982 7 Madison WI 6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2018-07-06   
608-984 0 Madison WI 6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2025-09-26   
608-988 6 Mount Hope WI 6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354      
608-988 7 Mount Hope WI 6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354      
608-991 0 Beloit WI 6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2025-10-20   
608-991 9 Beloit WI 6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2026-01-12   
608-999 0 Madison WI 6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2015-07-17   
608-999 1 Madison WI 6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2015-07-30   

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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