Network topology

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

AS15141

Currently announcedSnapshot awaiting refresh

Bausch & Lomb · ASN-BAUSCH-LOMB

Last observed9/30/2026, 13:58:23Open ASN profile →

AS15141 relationship topology

Showing 2 / 2

AS15141Bausch & Lomb

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS2856BT-UK-AS British Telecommunications Limited

Relationship: Upstream
Observed weight: 270
ASN registration country: United Kingdom
Latest RIS data: 9/30/2026, 00:00:00

Open AS2856 profile →

All adjacent autonomous systems

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

2 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS2856Observed weight 270	BT-UK-AS British Telecommunications Limited	Upstream	United Kingdom	8/19/2019, 00:00:00	9/30/2026, 00:00:00	669	0
AS7018Observed weight 261	ATT-INTERNET4 - AT&T Enterprises, LLC	Upstream	United States	8/19/2019, 00:00:00	9/30/2026, 00:00:00	663	0

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