AS13904

UPSTREAMS4

ASN	DESCRIPTION	IPv4	IPv6	OBSERVATIONS
AS3356	Level 3 Parent, LLC	✓	✗	379
AS6939	Hurricane Electric LLC	✓	✓	334
AS6461	Zayo Bandwidth	✓	✗	150
AS22311	FAIRNET LLC	✓	✗	20

The figures come from the routing tables our peers give us. This number is seen from 8 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 1 day ago.