LIVE
5 ASNS PEERINGIPv4 1.077.680 PREFIXESIPv6 242.118 PREFIXESRPKI 1.001.406 VRPS17 PROBES ONLINELAST UPDATE JUST NOW
TREN
Rasat
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RASAT / AS

AS6404

FactSet Research Systems, Inc.
10 announcements8 upstreams8 peers
TIER 1FactSet Research Systems, Inc.FACTSETAS6404COLT Technology Services Group LimitedCOLTAS8220Equinix (EMEA) Acquisition Enterprises B.V.EquinixAS15830Vocus Connect International BackboneVOCUS-BACKBONE-ASAS4826The Constant Company, LLCAS-VULTRAS20473Arelion Sweden ABTWELVE99AS1299NTT America, Inc.NTT-DATA-2914AS2914Level 3 Parent, LLCLEVEL3AS3356Zayo BandwidthZAYO-6461AS6461
UPSTREAMS8
ASNDESCRIPTIONIPv4IPv6OBSERVATIONS
AS3356Level 3 Parent, LLC✓✗12
AS15830Equinix (EMEA) Acquisition Enterprises B.V.✓✗10
AS6461Zayo Bandwidth✓✗8
AS8220COLT Technology Services Group Limited✓✗5
AS9304HGC Global Communications Limited✓✗5
AS46887Crown Castle Fiber LLC✓✗5
AS9299Philippine Long Distance Telephone Company✓✗4
AS63927RISE✓✗1

The figures come from the routing tables our peers give us. This number is seen from 5 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 8 hours ago.