Network topology

Relationships come from RIS AS_PATH observations; direction represents path position, not a commercial contract or traffic direction.

AS38

Currently announcedSnapshot awaiting refresh

University of Illinois · UIUC

Last observed9/29/2026, 05:49:29Open ASN profile →

AS38 relationship topology

Showing 2 / 2

AS38University of Illinois

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS40387UI-ICCN - University of Illinois

Relationship: Upstream
Observed weight: 463
ASN registration country: United States
Latest RIS data: 10/31/2026, 00:00:00

Open AS40387 profile →

All adjacent autonomous systems

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2 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS40387Observed weight 463	UI-ICCN - University of Illinois	Upstream	United States	8/19/2019, 00:00:00	10/31/2026, 00:00:00	1,532	1,067
AS11537Observed weight 12	INTERNET2-RESEARCH-EDU - Internet2	Upstream	United States	8/19/2019, 00:00:00	10/31/2026, 00:00:00	28	6

CHA.LA ASN relationship snapshotRelationships are normalized by CHA.LA from collected routing observations and registration context.CHA.LA routing observations · registration context