LIVE
5 ASNS PEERINGIPv4 1.078.644 PREFIXESIPv6 242.064 PREFIXESRPKI 1.003.760 VRPS17 PROBES ONLINELAST UPDATE JUST NOW
TREN
Rasat
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RASAT / AS

AS397635

Synopsys Inc.
15 announcements4 upstreams4 peers
TIER 1Synopsys Inc.PATHLINE-CAMPUSAS397635Metro OpticMETROOPTICAS29909Arelion Sweden ABTWELVE99AS1299GTT Communications Inc.GTT-BACKBONEAS3257Level 3 Parent, LLCLEVEL3AS3356Zayo BandwidthZAYO-6461AS6461AT&T Enterprises, LLCATT-INTERNET4AS7018
UPSTREAMS4
ASNDESCRIPTIONIPv4IPv6OBSERVATIONS
AS3356Level 3 Parent, LLC✓✗43
AS7018AT&T Enterprises, LLC✓✗8
AS6461Zayo Bandwidth✓✗5
AS29909Metro Optic✓✗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.