AS18723

UPSTREAMS6

ASN	DESCRIPTION	IPv4	IPv6	OBSERVATIONS
AS3356	Level 3 Parent, LLC	✓	✗	57
AS3257	GTT Communications Inc.	✓	✗	14
AS45458	SBN-ISP/AWN-ISP and SBN-NIX/AWN-NIX	✓	✗	8
AS9255	Singapore Telecom	✓	✗	4
AS9498	BHARTI Airtel Ltd.	✓	✗	4
AS5580	GTT Communications Netherlands B.V.	✓	✗	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 3 hours ago.