AS22056

UPSTREAMS6

ASN	DESCRIPTION	IPv4	IPv6	OBSERVATIONS
AS3356	Level 3 Parent, LLC	✓	✗	21
AS7018	AT&T Enterprises, LLC	✓	✓	18
AS8220	COLT Technology Services Group Limited	✓	✗	9
AS6267	GTT Americas, LLC	✓	✗	5
AS4230	CLARO S.A.	✓	✗	4
AS15830	Equinix (EMEA) Acquisition Enterprises B.V.	✓	✗	1

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 11 hours ago.