Network topology

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

AS27348

Currently announcedSnapshot awaiting refresh

SURFNET-1 - Surfnet Communications, Inc. · SURFNET-1

Last observed10/1/2026, 22:59:04Open ASN profile →

AS27348 relationship topology

Showing 3 / 3

AS27348Surfnet Communications,…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS11994CZIO-ASN - Cruzio

Relationship: Upstream
Observed weight: 311
ASN registration country: United States
Latest RIS data: 10/1/2026, 00:00:00

Open AS11994 profile →

All adjacent autonomous systems

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3 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4
AS11994Observed weight 311	CZIO-ASN - Cruzio	Upstream	United States	8/21/2019, 00:00:00	10/1/2026, 00:00:00	438
AS174Observed weight 275	COGENT-174 - Cogent Communications, LLC	Upstream	United States	8/21/2019, 00:00:00	10/1/2026, 00:00:00	1,330
AS11404Observed weight 259	AS-WAVE-1 - Wave Broadband	Upstream	United States	8/21/2019, 00:00:00	10/1/2026, 00:00:00	2,421

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