Possible BGP hijack

Beginning at 2019-11-17 23:13:15 UTC, we detected a possible BGP hijack.

Prefix 138.203.0.0/16, is normally announced by AS5488 BELGACOM, BE.

But beginning at 2019-11-17 23:13:15, the same prefix (138.203.0.0/16) was also announced by ASN 8983.

This was detected by 154 BGPMon peers.

Expected
Start time: 2019-11-17 23:13:15 UTC
Expected prefix: 138.203.0.0/16
Expected ASN: 5488 (BELGACOM, BE)
Event Details
Detected advertisement: 138.203.0.0/16
Detected Origin ASN 8983 (NOKIA-AS, FI)
Detected AS Path 27553 1299 1759 8983 8983 8983 8983 8983 8983
Detected by number of BGPMon peers: 154

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