Possible BGP hijack

Beginning at 2023-08-30 06:26:13 UTC, we detected a possible BGP hijack.

Prefix, is normally announced by AS2856 BT-UK-AS BTnet UK Regional network, GB.

But beginning at 2023-08-30 06:26:13, the same prefix ( was also announced by ASN 393427.

This was detected by 21 BGPMon peers.

Start time: 2023-08-30 06:26:13 UTC
Expected prefix:
Expected ASN: 2856 (BT-UK-AS BTnet UK Regional network, GB)
Event Details
Detected advertisement:
Detected Origin ASN 393427 ()
Detected AS Path 1126 6461 7029 398465 393427
Detected by number of BGPMon peers: 21

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