Network topology

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

AS78

Currently announcedSnapshot awaiting refresh

BA-346-78 - BT Americas, Inc · BA-346-78

Last observed9/29/2026, 05:50:45Open ASN profile →

AS78 relationship topology

Showing 1 / 1

AS78BT Americas, Inc

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS3300BT British Telecommunications Limited

Relationship: Upstream
Observed weight: 261
ASN registration country: India
Latest RIS data: 9/28/2026, 00:00:00

Open AS3300 profile →

All adjacent autonomous systems

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

1 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS3300Observed weight 261	BT British Telecommunications Limited	Upstream	India	8/19/2019, 00:00:00	9/28/2026, 00:00:00	993	0

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