Network topology

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

AS3377

Currently announcedSnapshot awaiting refresh

MCI-ASN - Verizon Business · MCI-ASN

Last observed9/29/2026, 10:32:45Open ASN profile →

AS3377 relationship topology

Showing 3 / 3

AS3377Verizon Business

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS3378MCI-ASN - Verizon Business

Relationship: Upstream
Observed weight: 303
ASN registration country: United States
Latest RIS data: 10/13/2026, 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.

3 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4
AS3378Observed weight 303	MCI-ASN - Verizon Business	Upstream	United States	8/19/2019, 00:00:00	10/13/2026, 00:00:00	4,660
AS3372Observed weight 260	MCI-ASN - Verizon Business	Upstream	United States	8/19/2019, 00:00:00	10/13/2026, 00:00:00	662
AS3371Observed weight 259	MCI-ASN - Verizon Business	Upstream	United States	8/19/2019, 00:00:00	10/13/2026, 00:00:00	662

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