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5 ASNS PEERINGIPv4 1.078.057 PREFIXESIPv6 242.198 PREFIXESRPKI 1.003.464 VRPS17 PROBES ONLINELAST UPDATE JUST NOW
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Rasat
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RASAT / AS

AS19855

Masergy Communications, Inc.
103 announcements8 upstreams18 peers
TIER 1Masergy Communications, Inc.MASERGYAS19855SingTel Optus Pty LtdOPTUSCOM-AS01-AUAS7474Comcast Cable Communications, LLCCOMCAST-7922AS7922Arelion Sweden ABTWELVE99AS1299GTT Communications Inc.GTT-BACKBONEAS3257Level 3 Parent, LLCLEVEL3AS3356PCCW Global (HK) Ltd.PCCWG-APAC-HKAS3491Singapore Telecommunications LtdSINGTEL-AS-APAS7473
UPSTREAMS8
ASNDESCRIPTIONIPv4IPv6OBSERVATIONS
AS3356Level 3 Parent, LLC✓✓326
AS3491PCCW Global (HK) Ltd.✓✓33
AS7922Comcast Cable Communications, LLC✓✗32
AS7474SingTel Optus Pty Ltd✓✓31
AS7473Singapore Telecommunications Ltd✓✗30
AS12956TELEFONICA GLOBAL SOLUTIONS SL✓✗16
AS33491Comcast Cable Communications, LLC✓✗12
AS174Cogent Communications, LLC✓✗4

The figures come from the routing tables our peers give us. This number is seen from 6 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.