Possible BGP hijack

Beginning at 2019-03-25 17:04:10, we detected a possible BGP hijack.

Prefix 196.17.192.0/22, Normally announced by AS174 COGENT-174 - Cogent Communications, US

Starting at 2019-03-25 17:04:10, a more specific route (196.17.192.0/23) was announced by ASN 204655.

This was detected by 25 BGPMon peers.

Expected
Start time: 2019-03-25 17:04:10 UTC
Expected prefix: 196.17.192.0/22
Expected ASN: 174 (COGENT-174 - Cogent Communications, US)
Event Details
Detected advertisement: 196.17.192.0/23
Detected Origin ASN 204655 (NOVOGARA-AS, NL)
Detected AS Path 133812 137363 58552 9002 202425 204655
Detected by number of BGPMon peers: 25

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