Possible BGP hijack

Beginning at 2023-12-19 10:23:27 UTC, we detected a possible BGP hijack.

Prefix 205.57.80.0/24, is normally announced by AS647 DNIC-ASBLK-00616-00665, US.

But beginning at 2023-12-19 10:23:27, the same prefix (205.57.80.0/24) was also announced by ASN 9808.

This was detected by 2 BGPMon peers.

Expected
Start time: 2023-12-19 10:23:27 UTC
Expected prefix: 205.57.80.0/24
Expected ASN: 647 (DNIC-ASBLK-00616-00665, US)
Event Details
Detected advertisement: 205.57.80.0/24
Detected Origin ASN 9808 (CMNET-GD Guangdong Mobile Communication Co.Ltd., CN)
Detected AS Path 209218 20473 3491 58453 9808
Detected by number of BGPMon peers: 2

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