
2381 WISCNET1-AS - WiscNet, US
Adjacency: 33 Upstream: 3 Downstream: 30
Upstream Adjacent AS list
AS11537 INTERNET2-RESEARCH-EDU - Internet2, US
AS11164 INTERNET2-I2PX - Internet2, US
AS6939 HURRICANE - Hurricane Electric LLC, US
Downstream Adjacent AS list
AS1736 MU-AS - Marquette University, US
AS19782 INDIANAGIGAPOP - Indiana University, US
AS3136 STATE-OF-WISCONSIN-AS1 - State of WI Dept. of Administration, US
AS3128 BRUWS-AS3128 - University of Wisconsin System, US
AS3676 UIOWA-AS - University of Iowa, US
AS55133 ST-CROIX-CENTRAL-SCHOOL-DISTRICT - St. Croix Central School District, US
AS57 NL-GIGAPOP - University of Minnesota, US
AS396939 AANIIN - Fond du Lac Band of Lake Superior Chippewa, US
AS103 NWU-AS - Northwestern University, US
AS22066 CITY-OF-EAU-CLAIRE - City of Eau Claire, US
AS23301 WISC-INVESTMENT-BOARD - State of Wisconsin Investment Board, US
AS25979 COMDC-WI - CITY OF MADISON, US
AS22971 SVHHSTOSF-NET - ST. VINCENT HOSPITAL OF THE HOSPITAL SISTERS OF THE THIRD ORDER OF ST. FRANCIS, US
AS22137 BCW - Blood Center of Wisconsin, Inc., US
AS36723 WAUKESHA-COUNTY-INTERNET - Waukesha County, US
AS394316 ALTRA - Altra Federal Credit Union, US
AS40347 EAUCLAIRE-COUNTY - Eau Claire County, US
AS395963 WCAN - WCAN, US
AS393257 LAWREN-1 - Lawrence University, US
AS2041 STNORBERTCOLLEGE - St. Norbert College, US
AS64243 MPTC - Moraine Park Technical College, US
AS47015 SHH-SJH - Sacred Heart Hospital, US
AS14192 CARTHA-ASN - Carthage College, US
AS11500 MSOE-INTERNET - Milwaukee School of Engineering, US
AS401492 WINDING-RIVERS-LIBRARY-SYSTEM - Winding Rivers Library System, US
AS53599 KENOSHA-COUNTY-WI - Kenosha County, US
AS53355 CUW-1 - Concordia University Wisconsin, US
AS400632 KUSD-ASN-01 - KUSD, US
AS394673 9408 - Milwaukee Area Technical College, US
AS33503 MCW-1-AS - Medical College of Wisconsin, US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 676 AS2381 ORG+TRN Originate: 516864 /13.02 Transit: 321792 /13.70 WISCNET1-AS - WiscNet, US
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 8170 AS2381 WISCNET1-AS - WiscNet, US 37 9 4 32 5 13.51% Prefix AS Path Aggregation Suggestion 64.189.15.0/24 4777 6939 2381 2381 140.104.0.0/16 4777 2497 11164 2381 140.189.0.0/16 4777 2497 11164 2381 143.109.64.0/19 4777 2497 11164 2381 143.109.192.0/19 4777 2497 11164 2381 144.89.0.0/18 4777 2497 11164 2381 148.59.44.0/24 4777 2497 11164 2381 160.32.0.0/22 4777 6939 2381 2381 165.128.0.0/16 4777 2497 11164 2381 170.125.0.0/16 4777 2497 11164 2381 170.125.238.0/23 4777 2497 11164 2381 - Withdrawn - matching aggregate 170.125.0.0/16 4777 2497 11164 2381 192.156.230.0/24 4777 2497 11164 2381 192.206.48.0/24 4777 6939 2381 2381 198.150.0.0/16 4777 2497 11164 2381 199.197.64.0/18 4777 2497 11164 2381 199.233.44.0/23 4608 7575 11537 2381 199.233.44.0/23 4777 2497 11164 2381 + Announce - aggregate of 199.233.44.0/24 (4777 2497 11164 2381) and 199.233.45.0/24 (4777 2497 11164 2381) 199.233.44.0/24 4777 2497 11164 2381 - Withdrawn - aggregated with 199.233.45.0/24 (4777 2497 11164 2381) 199.233.45.0/24 4777 2497 11164 2381 - Withdrawn - aggregated with 199.233.44.0/24 (4777 2497 11164 2381) 199.233.84.0/24 4777 2497 11164 2381 199.233.86.0/24 4777 2497 11164 2381 199.233.142.0/24 4777 2497 11164 2381 199.242.176.0/24 4777 2497 11164 2381 199.248.186.0/24 4777 2497 11164 2381 204.128.233.0/24 4777 2497 11164 2381 204.128.234.0/23 4777 2497 11164 2381 + Announce - aggregate of 204.128.234.0/24 (4777 2497 11164 2381) and 204.128.235.0/24 (4777 2497 11164 2381) 204.128.234.0/24 4777 2497 11164 2381 - Withdrawn - aggregated with 204.128.235.0/24 (4777 2497 11164 2381) 204.128.235.0/24 4777 2497 11164 2381 - Withdrawn - aggregated with 204.128.234.0/24 (4777 2497 11164 2381) 204.128.236.0/23 4777 2497 11164 2381 + Announce - aggregate of 204.128.236.0/24 (4777 2497 11164 2381) and 204.128.237.0/24 (4777 2497 11164 2381) 204.128.236.0/24 4777 2497 11164 2381 - Withdrawn - aggregated with 204.128.237.0/24 (4777 2497 11164 2381) 204.128.237.0/24 4777 2497 11164 2381 - Withdrawn - aggregated with 204.128.236.0/24 (4777 2497 11164 2381) 204.128.238.0/24 4777 2497 11164 2381 204.128.240.0/23 4777 2497 11164 2381 + Announce - aggregate of 204.128.240.0/24 (4777 2497 11164 2381) and 204.128.241.0/24 (4777 2497 11164 2381) 204.128.240.0/24 4777 2497 11164 2381 - Withdrawn - aggregated with 204.128.241.0/24 (4777 2497 11164 2381) 204.128.241.0/24 4777 2497 11164 2381 - Withdrawn - aggregated with 204.128.240.0/24 (4777 2497 11164 2381) 204.128.242.0/24 4777 2497 11164 2381 204.145.232.0/24 4777 6939 2381 2381 205.213.0.0/16 4777 2497 11164 2381 208.85.28.0/22 4777 2497 11164 2381 216.56.0.0/16 4777 2497 11164 2381 216.56.252.0/23 4777 6939 2381 2381
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS2381 6 More Specifics 37 Total Advertisements WISCNET1-AS - WiscNet, US
64.189.15.0/24 64.189.0.0/16
170.125.238.0/23 170.125.0.0/16
199.233.44.0/23 199.233.32.0/20
199.233.44.0/24 199.233.32.0/20
199.233.45.0/24 199.233.32.0/20
216.56.252.0/23 216.56.0.0/16
whois: 402332
IANA has recorded AS2381 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS2381\n
#
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# available at: https://www.arin.net/resources/registry/whois/tou/
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# If you see inaccuracies in the results, please report at
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
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ASNumber: 2381
ASName: WISCNET1-AS
ASHandle: AS2381
RegDate: 1993-02-03
Updated: 2024-02-28
Ref: https://rdap.arin.net/registry/autnum/2381
OrgName: WiscNet
OrgId: WISC-Z
Address: 605 Science Drive
City: Madison
StateProv: WI
PostalCode: 53711
Country: US
RegDate: 2022-08-01
Updated: 2024-02-28
Ref: https://rdap.arin.net/registry/entity/WISC-Z
OrgAbuseHandle: ABUSE8958-ARIN
OrgAbuseName: Abuse
OrgAbusePhone: +1-608-442-6761
OrgAbuseEmail: abuse@wiscnet.net
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE8958-ARIN
OrgTechHandle: WN29-ORG-ARIN
OrgTechName: WiscNet NIC
OrgTechPhone: +1-608-210-3979
OrgTechEmail: nic@wiscnet.net
OrgTechRef: https://rdap.arin.net/registry/entity/WN29-ORG-ARIN
RTechHandle: WN29-ORG-ARIN
RTechName: WiscNet NIC
RTechPhone: +1-608-210-3979
RTechEmail: nic@wiscnet.net
RTechRef: https://rdap.arin.net/registry/entity/WN29-ORG-ARIN
RAbuseHandle: ABUSE8958-ARIN
RAbuseName: Abuse
RAbusePhone: +1-608-442-6761
RAbuseEmail: abuse@wiscnet.net
RAbuseRef: https://rdap.arin.net/registry/entity/ABUSE8958-ARIN
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
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