AS203689

UPSTREAMS3

ASN	DESCRIPTION	IPv4	IPv6	OBSERVATIONS
AS12912	T-Mobile Polska S.A.	✓	✗	8
AS3257	GTT Communications Inc.	✓	✗	4
AS8220	COLT Technology Services Group Limited	✓	✗	4

The figures come from the routing tables our peers give us. This number is seen from 4 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.