LIVE
6 ASNS PEERINGIPv4 1.079.954 PREFIXESIPv6 242.406 PREFIXESRPKI 1.004.201 VRPS17 PROBES ONLINELAST UPDATE JUST NOW
TREN
Rasat
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RASAT / AS

AS393937

Medical Card System, Inc.
1 announcements1 upstreams1 peers
TIER 1Medical Card System, Inc.MCS-PUBLIC-NETAS393937Liberty Communications of Puerto Rico LLCLCPRLAS14638Liberty Mobile Puerto Rico Inc.LIBERTY-MOB-PRAS11992Columbus Networks USA, Inc.LIBERTY-NETWORKSAS23520Arelion Sweden ABTWELVE99AS1299Liberty Global Europe Holding B.V.LibertyGlobalAS6830AT&T Enterprises, LLCATT-INTERNET4AS7018
UPSTREAMS1
ASNDESCRIPTIONIPv4IPv6OBSERVATIONS
AS14638Liberty Communications of Puerto Rico LLC✓✗5

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 3 hours ago.