Network topology

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

AS160

Currently announcedSnapshot awaiting refresh

The University of Chicago · U-CHICAGO-AS

Last observed10/31/2026, 01:41:13Open ASN profile →

AS160 relationship topology

Showing 6 / 6

AS160The University of Chica…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS174COGENT-174 - Cogent Communications, LLC

Relationship: Upstream
Observed weight: 272
ASN registration country: United States
Latest RIS data: 10/30/2026, 00:00:00

Open AS174 profile →

All adjacent autonomous systems

The table preserves every relationship in the selected filter; graph limits and pagination never remove data.

6 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS174Observed weight 272	COGENT-174 - Cogent Communications, LLC	Upstream	United States	8/19/2019, 00:00:00	10/30/2026, 00:00:00	628	176
AS11164Observed weight 191	INTERNET2-I2PX - Internet2	Upstream	United States	8/19/2019, 00:00:00	10/30/2026, 00:00:00	434	287
AS6461Observed weight 176	ZAYO-6461 - Zayo Bandwidth	Upstream	United States	8/19/2019, 00:00:00	10/30/2026, 00:00:00	706	179
AS11537Observed weight 9	INTERNET2-RESEARCH-EDU - Internet2	Upstream	United States	8/19/2019, 00:00:00	10/30/2026, 00:00:00	45	13
AS293Observed weight 1	ESNET - ESnet	Upstream	United States	8/19/2019, 00:00:00	10/30/2026, 00:00:00	5	2
AS2153Observed weight 1	CENIC-2153 - CENIC	Upstream	United States	8/19/2019, 00:00:00	9/28/2026, 00:00:00	1	1

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