Network topology

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

AS40089

Currently announcedSnapshot awaiting refresh

Bullhorn Inc. · BULLHORN-INC-BOSTON

Last observed10/3/2026, 08:19:06Open ASN profile →

AS40089 relationship topology

Showing 6 / 6

AS40089Bullhorn Inc.

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS12129123NET - 123.Net, Inc.

Relationship: Upstream
Observed weight: 226
ASN registration country: United States
Latest RIS data: 10/3/2026, 00:00:00

Open AS12129 profile →

All adjacent autonomous systems

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6 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4
AS12129Observed weight 226	123NET - 123.Net, Inc.	Upstream	United States	8/23/2019, 00:00:00	10/3/2026, 00:00:00	1,228
AS174Observed weight 186	COGENT-174 - Cogent Communications, LLC	Upstream	United States	8/23/2019, 00:00:00	10/3/2026, 00:00:00	849
AS3257Observed weight 100	GTT-BACKBONE GTT Communications Inc.	Upstream	Germany	8/23/2019, 00:00:00	10/3/2026, 00:00:00	314
AS22911Observed weight 60	SINAP-TIX - SINAP-TIX, LLC	Upstream	United States	8/23/2019, 00:00:00	10/3/2026, 00:00:00	291
AS23005Observed weight 43	SWITCH-LTD - SWITCH, LTD	Upstream	United States	8/23/2019, 00:00:00	10/3/2026, 00:00:00	169
AS286Observed weight 1	KPN GTT Communications Inc.	Upstream	Germany	8/23/2019, 00:00:00	10/3/2026, 00:00:00	4

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