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	Prefix	Description
	141.142.0.0/16	University of Illinois
	198.17.196.0/24	University of Illinois
	2620:0:c80::/48	University of Illinois

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS40387	University of Illinois	✔	✔
	AS22335	Metropolitan Research and Education Network	✘	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS40387	University of Illinois	✔	✔
	AS22335	Metropolitan Research and Education Network	✔	✔
	AS293	ESnet	✔	✔
	AS38	University of Illinois	✔	✘

ASHandle:       AS1224
OrgID:          NCSA-3-Z
ASName:         NCSA-AS
ASNumber:       1224
RegDate:        1991-02-25
Updated:        2024-02-12
TechHandle:     ND63-ORG-ARIN
Source:         ARIN



OrgID:          NCSA-3-Z
OrgName:        University of Illinois
CanAllocate:    
Street:         NCSA
Street:         1205 W. Clark St
City:           Urbana
State/Prov:     IL
Country:        US
PostalCode:     61801
RegDate:        2023-08-31
Updated:        2023-08-31
OrgAdminHandle: ND63-ORG-ARIN
OrgTechHandle:  ND63-ORG-ARIN
OrgAbuseHandle: ND63-ORG-ARIN
Source:         ARIN





OrgAdminHandle:       ND63-ORG-ARIN
OrgAdminName:          Network Development
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        ND63-ORG-ARIN
OrgTechName:           Network Development
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       ND63-ORG-ARIN
OrgAbuseName:          Network Development
# Email removed, Log into bgp.tools to see whois emails


TechHandle:           ND63-ORG-ARIN
TechName:              Network Development
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-02-17T03:26:11Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as3676:as-uiowa-peers-announce-cust	20
RADB	as-hurricane	24515
RADB	as-hurricanev6	20533
RADB	as-iccn	8
RADB	as198949:as-sd	3434
RADB	as-uiuc	4
RADB	as22335:as-customers	82
LEVEL3	as-sprint-origins	7309
RADB	as-carne	2
RIPE	as-transroute-spec	19660
RADB	as-pavlov:as-customers	13
RADB	as-wiscnet-wrips	484