LIVE
5 ASNS PEERINGIPv4 1.077.495 PREFIXESIPv6 242.004 PREFIXESRPKI 1.002.049 VRPS17 PROBES ONLINELAST UPDATE JUST NOW
TREN
Rasat
Run a probe
RASAT / AS

AS18639

Abt Associates, Inc.
1 announcements1 upstreams1 peers
TIER 1Abt Associates, Inc.ABTASSOCIATES-ASAS18639Zayo BandwidthZAYO-6461AS6461
UPSTREAMS1
ASNDESCRIPTIONIPv4IPv6OBSERVATIONS
AS6461Zayo Bandwidth✓✗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 8 hours ago.