Possible BGP hijack

Beginning at 2019-06-08 11:10:48 UTC, we detected a possible BGP hijack.

Prefix 185.139.152.0/22, is normally announced by AS203300 SPEED, NO.

But beginning at 2019-06-08 11:10:48, the same prefix (185.139.152.0/22) was also announced by ASN 51747.

This was detected by 180 BGPMon peers.

Expected
Start time: 2019-06-08 11:10:48 UTC
Expected prefix: 185.139.152.0/22
Expected ASN: 203300 (SPEED, NO)
Event Details
Detected advertisement: 185.139.152.0/22
Detected Origin ASN 51747 (INTERNETBOLAGET, SE)
Detected AS Path 12242 6461 3356 12552 51747
Detected by number of BGPMon peers: 180

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