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	Prefix	Description
	204.147.0.0/20	CITY OF MADISON
	2001:4e0:1008::/48	WiscNet

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS2381	WiscNet	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS2381	WiscNet	✔	✔
	AS64251	Monona Terrace Community and Convention Center	✔	✔

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Downstreams

	ASN	Description	IPv4	IPv6
	AS64251	Monona Terrace Community and Convention Center	✔	✔

ASHandle:       AS25979
OrgID:          CITYOF-59
ASName:         COMDC-WI
ASNumber:       25979
RegDate:        2002-06-11
Updated:        2012-03-02
TechHandle:     WN29-ORG-ARIN
Source:         ARIN



OrgID:          CITYOF-59
OrgName:        CITY OF MADISON
CanAllocate:    
Street:         INFORMATION SERVICES
Street:         CITY OF MADISON
Street:         210 Martin Luther King Jr. Blvd.
Street:         ROOM GA4
City:           MADISON
State/Prov:     WI
Country:        US
PostalCode:     53703
RegDate:        1994-11-17
Updated:        2024-02-28
OrgAdminHandle: CMIS-ARIN
OrgTechHandle:  WN29-ORG-ARIN
OrgAbuseHandle: ABUSE8958-ARIN
Source:         ARIN





OrgAdminHandle:       CMIS-ARIN
OrgAdminName:          City of Madison Information Services
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        WN29-ORG-ARIN
OrgTechName:           WiscNet NIC
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       ABUSE8958-ARIN
OrgAbuseName:          Abuse
# Email removed, Log into bgp.tools to see whois emails


TechHandle:           WN29-ORG-ARIN
TechName:              WiscNet NIC
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-06-08T03:25:15Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as-hurricanev6	21136
ARIN	as-cityofmadison	2
RADB	as26554:as-customers	248
RADB	as-chtr-bb	658
ARIN	as-xo-b	60328
RADB	as-hurricane	24939
RADB	as-13986	474
RADB	as-pnapchg	367
RADB	as-18474	473
LEVEL3	as-level3-origins-na	0
RIPE	as-transroute-spec	19620