Possible BGP hijack

Beginning at 2023-01-19 15:19:48, we detected a possible BGP hijack.

Prefix 204.157.0.0/16, Normally announced by AS174 COGENT-174, US

Starting at 2023-01-19 15:19:48, a more specific route (204.157.232.0/24) was announced by ASN 272930.

This was detected by 14 BGPMon peers.

Expected
Start time: 2023-01-19 15:19:48 UTC
Expected prefix: 204.157.0.0/16
Expected ASN: 174 (COGENT-174, US)
Event Details
Detected advertisement: 204.157.232.0/24
Detected Origin ASN 272930 ()
Detected AS Path 200155 39392 1299 6762 52468 52468 52468 52468 52468 52468 52468 272930
Detected by number of BGPMon peers: 14

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