Possible BGP hijack

Beginning at 2023-09-26 05:35:41 UTC, we detected a possible BGP hijack.

Prefix 66.249.153.0/24, is normally announced by AS13771 DIGICEL-CAYMAN, KY.

But beginning at 2023-09-26 05:35:41, the same prefix (66.249.153.0/24) was also announced by ASN 40786.

This was detected by 52 BGPMon peers.

Expected
Start time: 2023-09-26 05:35:41 UTC
Expected prefix: 66.249.153.0/24
Expected ASN: 13771 (DIGICEL-CAYMAN, KY)
Event Details
Detected advertisement: 66.249.153.0/24
Detected Origin ASN 40786 (Unknown)
Detected AS Path 29396 6461 33576 40786
Detected by number of BGPMon peers: 52

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