Possible BGP hijack

Beginning at 2020-12-15 16:31:50 UTC, we detected a possible BGP hijack.

Prefix 212.192.16.0/21, is normally announced by AS212672 KIN-CHEUNG-LEUNG, NL.

But beginning at 2020-12-15 16:31:50, the same prefix (212.192.16.0/21) was also announced by ASN 33657.

This was detected by 72 BGPMon peers.

Expected
Start time: 2020-12-15 16:31:50 UTC
Expected prefix: 212.192.16.0/21
Expected ASN: 212672 (KIN-CHEUNG-LEUNG, NL)
Event Details
Detected advertisement: 212.192.16.0/21
Detected Origin ASN 33657 (CMCS, US)
Detected AS Path 41405 39180 3356 33657
Detected by number of BGPMon peers: 72

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