Network topology

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

AS201528

Currently announcedSnapshot awaiting refresh

Orchid Cellmark Ltd · ORCHID-CELLMARK-CHORLEY

Last observed10/25/2026, 20:33:17Open ASN profile →

AS201528 relationship topology

Showing 3 / 3

AS201528Orchid Cellmark Ltd

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS51043ASPIRE01 Aspire Technology Solutions Ltd

Relationship: Upstream
Observed weight: 623
ASN registration country: United Kingdom
Latest RIS data: 10/25/2026, 00:00:00

Open AS51043 profile →

All adjacent autonomous systems

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3 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS51043Observed weight 623	ASPIRE01 Aspire Technology Solutions Ltd	Upstream	United Kingdom	8/28/2019, 00:00:00	10/25/2026, 00:00:00	257	532
AS201529Observed weight 206	Orchid Cellmark Ltd	Downstream	United Kingdom	8/28/2019, 00:00:00	10/25/2026, 00:00:00	0	266
AS2856Observed weight 14	BT-UK-AS British Telecommunications Limited	Upstream	United Kingdom	8/28/2019, 00:00:00	10/25/2026, 00:00:00	16	0

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