Possible BGP hijack

Beginning at 2020-10-19 09:53:55 UTC, we detected a possible BGP hijack.

Prefix 205.99.0.0/20, is normally announced by AS647 DNIC-ASBLK-00616-00665, US.

But beginning at 2020-10-19 09:53:55, the same prefix (205.99.0.0/20) was also announced by ASN 138195.

This was detected by 5 BGPMon peers.

Expected
Start time: 2020-10-19 09:53:55 UTC
Expected prefix: 205.99.0.0/20
Expected ASN: 647 (DNIC-ASBLK-00616-00665, US)
Event Details
Detected advertisement: 205.99.0.0/20
Detected Origin ASN 138195 (MOACKCOLTD-AS-AP MOACK.Co.LTD, KR)
Detected AS Path 18356 9931 4651 3491 58453 138195
Detected by number of BGPMon peers: 5

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