LIVE
5 ASNS PEERINGIPv4 1.077.699 PREFIXESIPv6 241.990 PREFIXESRPKI 1.001.431 VRPS17 PROBES ONLINELAST UPDATE JUST NOW
TREN
Rasat
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RASAT / AS

AS18693

University of Colorado Hospital
4 announcements3 upstreams3 peers
TIER 1University of Colorado HospitalUCH-CENTRALAS18693CenturyLink Communications, LLCCENTURYLINK-US-LEGACY…AS209Grande Communications Networks, LLCGRANDECOM-AS1AS7459Arelion Sweden ABTWELVE99AS1299GTT Communications Inc.GTT-BACKBONEAS3257Level 3 Parent, LLCLEVEL3AS3356
UPSTREAMS3
ASNDESCRIPTIONIPv4IPv6OBSERVATIONS
AS3356Level 3 Parent, LLC✓✗8
AS209CenturyLink Communications, LLC✓✗4
AS7459Grande Communications Networks, 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 3 hours ago.