Possible BGP hijack

Beginning at 2023-11-01 18:49:58 UTC, we detected a possible BGP hijack.

Prefix 171.22.146.0/24, is normally announced by AS51257 CERIZ, FR.

But beginning at 2023-11-01 18:49:58, the same prefix (171.22.146.0/24) was also announced by ASN 398465.

This was detected by 14 BGPMon peers.

Expected
Start time: 2023-11-01 18:49:58 UTC
Expected prefix: 171.22.146.0/24
Expected ASN: 51257 (CERIZ, FR)
Event Details
Detected advertisement: 171.22.146.0/24
Detected Origin ASN 398465 (RACKDOG-LLC, US)
Detected AS Path 48659 3257 398465
Detected by number of BGPMon peers: 14

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