AS33680

UPSTREAMS4

ASN	DESCRIPTION	IPv4	IPv6	OBSERVATIONS
AS174	Cogent Communications, LLC	✓	✓	60
AS3356	Level 3 Parent, LLC	✓	✓	53
AS2856	British Telecommunications Limited	✓	✗	5
AS15830	Equinix (EMEA) Acquisition Enterprises B.V.	✓	✗	5

The figures come from the routing tables our peers give us. This number is seen from 9 separate vantage points. A peer that shares an internet exchange with this network and carries only a small share of its paths is not counted as an upstream: a transit provider carries the whole table, an IX peer only its own announcements. Internet exchange data comes from PeeringDB. Figures are from a dump taken 10 hours ago.