Possible BGP hijack

Beginning at 2018-09-13 13:01:33, we detected a possible BGP hijack.

Prefix 145.46.128.0/18, Normally announced by AS9143 Ziggo

Starting at 2018-09-13 13:01:33, a more specific route (145.46.128.0/20) was announced by ASN 2830.

This was detected by 43 BGPMon peers.

Expected
Start time: 2018-09-13 13:01:33 UTC
Expected prefix: 145.46.128.0/18
Expected ASN: 9143 (Ziggo)
Event Details
Detected advertisement: 145.46.128.0/20
Detected Origin ASN 2830 (Verizon Nederland B.V.)
Detected AS Path 46044 4800 6939 702 2830
Detected by number of BGPMon peers: 43

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