AS17903

UPSTREAMS13

ASN	DESCRIPTION	IPv4	IPv6	OBSERVATIONS
AS4755	TATA Communications formerly VSNL is Leading ISP	✓	✗	152
AS9498	BHARTI Airtel Ltd.	✓	✗	92
AS3356	Level 3 Parent, LLC	✓	✗	48
AS9299	Philippine Long Distance Telephone Company	✓	✗	20
AS8220	COLT Technology Services Group Limited	✓	✗	16
AS9730	Bharti Telesonic Ltd	✓	✗	12
AS701	Verizon Business	✓	✗	8
AS2856	British Telecommunications Limited	✓	✗	8
AS9304	HGC Global Communications Limited	✓	✗	8
AS55836	Reliance Jio Infocomm Limited	✓	✗	8
AS199569	Cognizant Worldwide Limited	✓	✗	8
AS4657	StarHub Ltd	✓	✗	4
AS22773	Cox Communications Inc.	✓	✗	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 2 hours ago.