Possible BGP hijack

Beginning at 2021-03-04 22:47:41 UTC, we detected a possible BGP hijack.

Prefix, is normally announced by AS212543 JONAS-AS, BE.

But beginning at 2021-03-04 22:47:41, the same prefix ( was also announced by ASN 211753.

This was detected by 127 BGPMon peers.

Start time: 2021-03-04 22:47:41 UTC
Expected prefix:
Expected ASN: 212543 (JONAS-AS, BE)
Event Details
Detected advertisement:
Detected Origin ASN 211753 (TRISTAN-AS, BE)
Detected AS Path 25291 1299 25369 44103 211753
Detected by number of BGPMon peers: 127

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