Network topology

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

AS3372

Currently announcedSnapshot awaiting refresh

MCI-ASN - Verizon Business · MCI-ASN

Last observed10/19/2026, 21:51:42Open ASN profile →

AS3372 relationship topology

Showing 4 / 4

AS3372Verizon Business

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS3378MCI-ASN - Verizon Business

Relationship: Upstream
Observed weight: 1,253
ASN registration country: United States
Latest RIS data: 10/20/2026, 00:00:00

Open AS3378 profile →

All adjacent autonomous systems

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

4 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS3378Observed weight 1,253	MCI-ASN - Verizon Business	Upstream	United States	8/19/2019, 00:00:00	10/20/2026, 00:00:00	39,234	333
AS3375Observed weight 303	MCI-ASN - Verizon Business	Downstream	United States	8/19/2019, 00:00:00	10/20/2026, 00:00:00	2,646	0
AS3377Observed weight 259	MCI-ASN - Verizon Business	Downstream	United States	8/19/2019, 00:00:00	10/20/2026, 00:00:00	662	0
AS3371Observed weight 256	MCI-ASN - Verizon Business	Downstream	United States	8/19/2019, 00:00:00	10/20/2026, 00:00:00	331	0

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