Possible BGP hijack

Beginning at 2023-01-20 00:11:39 UTC, we detected a possible BGP hijack.

Prefix, is normally announced by AS5400 BT, GB.

But beginning at 2023-01-20 00:11:39, the same prefix ( was also announced by ASN 2686.

This was detected by 25 BGPMon peers.

Start time: 2023-01-20 00:11:39 UTC
Expected prefix:
Expected ASN: 5400 (BT, GB)
Event Details
Detected advertisement:
Detected Origin ASN 2686 (ATGS-MMD-AS, US)
Detected AS Path 50300 3257 2686
Detected by number of BGPMon peers: 25

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