AS3958

UPSTREAMS4

ASN	DESCRIPTION	IPv4	IPv6	OBSERVATIONS
AS577	Bell Canada	✓	✗	70
AS6461	Zayo Bandwidth	✓	✗	22
AS855	Bell Canada	✓	✗	10
AS2686	AT&T Enterprises, LLC	✓	✗	3

The figures come from the routing tables our peers give us. This number is seen from 5 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 9 hours ago.