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]

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-388 0 Kewaunee WI KEWNWI11RS0  9327 WISCONSIN BELL INC 350      
920-388 1 Kewaunee WI GNBYWIEL1MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 350   2014-11-25   
920-388 2 Kewaunee WI KEWNWI11RS0  9327 WISCONSIN BELL INC 350      
920-388 3 Kewaunee WI KEWNWI11RS0  9327 WISCONSIN BELL INC 350      
920-388 4 Kewaunee WI KEWNWI11RS0  9327 WISCONSIN BELL INC 350      
920-388 5 Kewaunee WI KEWNWI11RS0  9327 WISCONSIN BELL INC 350      
920-388 6 Kewaunee WI HULLWI01GT0  3839 CHARTER FIBERLINK, LLC - WI 350   2007-05-11   
920-388 7 Kewaunee WI KEWNWI11RS0  9327 WISCONSIN BELL INC 350      
920-388 8 Kewaunee WI KEWNWI11RS0  9327 WISCONSIN BELL INC 350      
920-388 9 Kewaunee WI GNBYWIEMCM2  5564 WISCONSIN RSA #10 LIMITED PARTNERSHIP 350   2012-07-19   
920-389 A New London WI GNBYWIATUMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 350      
920-389 0 New London WI GNBYWIATUMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 350      
920-389 1 New London WI APPLWI01X9X  007F BANDWIDTH.COM CLEC, LLC - WI 350   2008-11-22   
920-389 2 New London WI GNBYWI01VMD  225C ONVOY, LLC - WI 350   2018-05-14   
920-389 3 New London WI APPLWI01X9X  007F BANDWIDTH.COM CLEC, LLC - WI 350   2018-11-01   
920-389 4 New London WI APPLWI01X9X  007F BANDWIDTH.COM CLEC, LLC - WI 350   2018-12-09   
920-389 5 New London WI APPLWI01XEX  6529 T-MOBILE USA, INC. 350   2024-06-18   
920-389 6 New London WI APPLWI01XEX  6529 T-MOBILE USA, INC. 350   2024-06-18   
920-389 7 New London WI APPLWI01XEX  6529 T-MOBILE USA, INC. 350   2024-06-18   
920-389 8 New London WI GNBYWI01VMD  225C ONVOY, LLC - WI 350   2016-05-04   
920-389 9 New London WI GNBYWI01VMD  225C ONVOY, LLC - WI 350   2016-05-04   
920-390 A Watertown WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356      
920-390 0 Watertown WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356      
920-390 1 Watertown WI PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2004-11-22   
920-390 2 Watertown WI   792K CHARTER IP ENABLED SERVICES, LLC 356   2006-02-11   
920-390 3 Watertown WI   792K CHARTER IP ENABLED SERVICES, LLC 356   2021-01-17   
920-390 4 Watertown WI   792K CHARTER IP ENABLED SERVICES, LLC 356   2007-12-31   
920-390 5 Watertown WI MILWWIHEWMD  516C AT&T CORP. 356   2011-06-17   
920-390 6 Watertown WI MILWWIAUDS1  225C ONVOY, LLC - WI 356   2018-05-17   
920-390 7 Watertown WI   792K CHARTER IP ENABLED SERVICES, LLC 356   2013-10-30   
920-390 8 Watertown WI MILWWIAUX7Y  939H COMMIO, LLC 356   2022-08-22   
920-390 9 Watertown WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356      
920-391 A Green Bay WI GNBYWI12RS0  9327 WISCONSIN BELL INC 350      
920-391 0 Green Bay WI GNBYWI12RS0  9327 WISCONSIN BELL INC 350      
920-391 1 Green Bay WI GNBYWI01XMX  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 350   2016-12-09   
920-391 2 Green Bay WI GNBYWI12RS0  9327 WISCONSIN BELL INC 350      
920-391 3 Green Bay WI GNBYWI12RS0  9327 WISCONSIN BELL INC 350      
920-391 4 Green Bay WI GNBYWI12RS0  9327 WISCONSIN BELL INC 350      
920-391 5 Green Bay WI APPLWI01XWX  623D TIME WARNER CABLE INFORMATION SVCS (WISCONSIN) WI 350   2016-05-06   
920-391 6 Green Bay WI GNBYWI12RS0  9327 WISCONSIN BELL INC 350      
920-391 7 Green Bay WI GNBYWI12RS0  9327 WISCONSIN BELL INC 350      
920-391 8 Green Bay WI GNBYWI01XMX  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 350   2012-06-11   
920-391 9 Green Bay WI GNBYWI01XMX  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 350   2012-06-11   
920-392 A Beaver Dam WI MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356      
920-392 0 Beaver Dam WI   145J TERRA NOVA TELECOM INC. 356   2025-11-27   
920-392 1 Beaver Dam WI   145J TERRA NOVA TELECOM INC. 356   2025-04-09   
920-392 2 Beaver Dam WI MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2010-06-18   
920-392 3 Beaver Dam WI MILXWIILDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 356   2007-02-07   
920-392 4 Beaver Dam WI MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2010-11-05   
920-392 5 Beaver Dam WI MILWWIAUDS2  227F PEERLESS NETWORK OF WISCONSIN, LLC - WI 356   2013-05-05   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 >>

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.