Possible BGP hijack

Beginning at 2023-01-06 17:31:49 UTC, we detected a possible BGP hijack.

Prefix 23.143.248.0/24, is normally announced by AS65602 .

But beginning at 2023-01-06 17:31:49, the same prefix (23.143.248.0/24) was also announced by ASN 5690.

This was detected by 71 BGPMon peers.

Expected
Start time: 2023-01-06 17:31:49 UTC
Expected prefix: 23.143.248.0/24
Expected ASN: 65602 ()
Event Details
Detected advertisement: 23.143.248.0/24
Detected Origin ASN 5690 (VIANET-NO, CA)
Detected AS Path 7018 6461 5690
Detected by number of BGPMon peers: 71

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