Possible BGP hijack

Beginning at 2018-05-16 08:32:24 UTC, we detected a possible BGP hijack.

Prefix 89.40.139.0/24, is normally announced by AS200966 POLOK WELDING Wladyslaw Polok.

But beginning at 2018-05-16 08:32:24, the same prefix (89.40.139.0/24) was also announced by ASN 204373.

This was detected by 178 BGPMon peers.

Expected
Start time: 2018-05-16 08:32:24 UTC
Expected prefix: 89.40.139.0/24
Expected ASN: 200966 (POLOK WELDING Wladyslaw Polok)
Event Details
Detected advertisement: 89.40.139.0/24
Detected Origin ASN 204373 (POLINEO, PL)
Detected AS Path 9363 4637 174 204373 204373 204373 204373
Detected by number of BGPMon peers: 178

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