Possible BGP hijack

Beginning at 2022-10-18 02:10:07 UTC, we detected a possible BGP hijack.

Prefix 27.133.246.0/24, is normally announced by AS58793 NIFCLOUD-NET FUJITSU CLOUD TECHNOLOGIES LIMITED, JP.

But beginning at 2022-10-18 02:10:07, the same prefix (27.133.246.0/24) was also announced by ASN 19905.

This was detected by 48 BGPMon peers.

Expected
Start time: 2022-10-18 02:10:07 UTC
Expected prefix: 27.133.246.0/24
Expected ASN: 58793 (NIFCLOUD-NET FUJITSU CLOUD TECHNOLOGIES LIMITED, JP)
Event Details
Detected advertisement: 27.133.246.0/24
Detected Origin ASN 19905 (NEUSTAR-AS6, US)
Detected AS Path 28300 14840 22822 19905
Detected by number of BGPMon peers: 48

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