Possible BGP hijack

Beginning at 2019-05-25 21:21:56, we detected a possible BGP hijack.

Prefix 217.23.0.0/20, Normally announced by AS49981 WORLDSTREAM, NL

Starting at 2019-05-25 21:21:56, a more specific route (217.23.12.0/24) was announced by ASN 16734.

This was detected by 18 BGPMon peers.

Expected
Start time: 2019-05-25 21:21:56 UTC
Expected prefix: 217.23.0.0/20
Expected ASN: 49981 (WORLDSTREAM, NL)
Event Details
Detected advertisement: 217.23.12.0/24
Detected Origin ASN 16734 (AS-SUNFIBERNET - Sun Fibernet Inc., US)
Detected AS Path 28186 16734
Detected by number of BGPMon peers: 18

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