Possible BGP hijack

Beginning at 2023-01-26 22:13:04 UTC, we detected a possible BGP hijack.

Prefix, is normally announced by AS3491 BTN-ASN, US.

But beginning at 2023-01-26 22:13:04, the same prefix ( was also announced by ASN 40123.

This was detected by 5 BGPMon peers.

Start time: 2023-01-26 22:13:04 UTC
Expected prefix:
Expected ASN: 3491 (BTN-ASN, US)
Event Details
Detected advertisement:
Detected Origin ASN 40123 (R2G-2, US)
Detected AS Path 51944 3257 40123
Detected by number of BGPMon peers: 5

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