LIVE
5 ASNS PEERINGIPv4 1.077.203 PREFIXESIPv6 241.892 PREFIXESRPKI 1.002.283 VRPS17 PROBES ONLINELAST UPDATE JUST NOW
TREN
Rasat
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RASAT / AS

AS46286

Cook County
7 announcements3 upstreams3 peers
TIER 1Cook CountyCOOK-COUNTYAS46286Illinois Century NetworkILLINOIS-CENTURYAS6325Urban Communications, Inc.URBNAS15042Cogent Communications, LLCCOGENT-174AS174GTT Communications Inc.GTT-BACKBONEAS3257Zayo BandwidthZAYO-6461AS6461AT&T Enterprises, LLCATT-INTERNET4AS7018
UPSTREAMS3
ASNDESCRIPTIONIPv4IPv6OBSERVATIONS
AS6325Illinois Century Network✓✗16
AS15042Urban Communications, Inc.✓✗8
AS7018AT&T Enterprises, LLC✓✗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 4 hours ago.