Network topology

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

AS63174

Currently announcedSnapshot awaiting refresh

Blue Shield of California · LAS-COLO2

Last observed10/6/2026, 11:49:56Open ASN profile →

AS63174 relationship topology

Showing 5 / 5

AS63174Blue Shield of Californ…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS701UUNET - Verizon Business

Relationship: Upstream
Observed weight: 259
ASN registration country: United States
Latest RIS data: 10/6/2026, 00:00:00

Open AS701 profile →

All adjacent autonomous systems

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

5 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4
AS701Observed weight 259	UUNET - Verizon Business	Upstream	United States	8/25/2019, 00:00:00	10/6/2026, 00:00:00	330
AS174Observed weight 133	COGENT-174 - Cogent Communications, LLC	Upstream	United States	8/25/2019, 00:00:00	10/6/2026, 00:00:00	261
AS3356Observed weight 84	LEVEL3 - Level 3 Parent, LLC	Upstream	United States	8/25/2019, 00:00:00	10/6/2026, 00:00:00	105
AS22911Observed weight 72	SINAP-TIX - SINAP-TIX, LLC	Upstream	United States	8/25/2019, 00:00:00	10/6/2026, 00:00:00	209
AS23005Observed weight 51	SWITCH-LTD - SWITCH, LTD	Upstream	United States	8/25/2019, 00:00:00	10/6/2026, 00:00:00	92

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