LIVE
5 ASNS PEERINGIPv4 1.078.564 PREFIXESIPv6 241.963 PREFIXESRPKI 1.003.678 VRPS17 PROBES ONLINELAST UPDATE JUST NOW
TREN
Rasat
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RASAT / AS

AS399776

Premera Blue Cross
4 announcements2 upstreams2 peers
TIER 1Premera Blue CrossPBC-SEA-WA-POPAS399776Unitas GlobalINTERNAP-BLOCK-4AS14744Unitas GlobalUNITASAS1828The Constant Company, LLCAS-VULTRAS20473Arelion Sweden ABTWELVE99AS1299NTT America, Inc.NTT-DATA-2914AS2914GTT Communications Inc.GTT-BACKBONEAS3257
UPSTREAMS2
ASNDESCRIPTIONIPv4IPv6OBSERVATIONS
AS14744Unitas Global✓✗12
AS3257GTT Communications Inc.✓✗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.