AS26395

UPSTREAMS13

ASN	DESCRIPTION	IPv4	IPv6	OBSERVATIONS
AS8220	COLT Technology Services Group Limited	✓	✗	58
AS7018	AT&T Enterprises, LLC	✓	✗	8
AS15450	Alhambra Systems SA	✓	✗	8
AS701	Verizon Business	✓	✗	6
AS702	Verizon Business	✓	✗	6
AS7303	Telecom Argentina S.A.	✓	✗	4
AS8151	UNINET	✓	✗	4
AS16735	ALGAR TELECOM S/A	✓	✗	4
AS4768	One New Zealand Group Limited	✓	✗	3
AS174	Cogent Communications, LLC	✓	✗	2
AS12357	VODAFONE ESPANA S.A.U.	✓	✗	2
AS12541	LYNTIA NETWORKS S.A.	✓	✗	2
AS4648	Global-Gateway Internet	✓	✗	1

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 17 hours ago.