Possible BGP hijack

Beginning at 2019-09-19 09:51:00 UTC, we detected a possible BGP hijack.

Prefix 2804:5b90::/32, is normally announced by AS268855 --No Registry Entry--.

But beginning at 2019-09-19 09:51:00, the same prefix (2804:5b90::/32) was also announced by ASN 23650.

This was detected by 5 BGPMon peers.

Expected
Start time: 2019-09-19 09:51:00 UTC
Expected prefix: 2804:5b90::/32
Expected ASN: 268855 (--No Registry Entry--)
Event Details
Detected advertisement: 2804:5b90::/32
Detected Origin ASN 23650 (CHINANET-JS-AS-AP AS Number for CHINANET jiangsu province backbone, CN)
Detected AS Path 57 11537 23911 23910 138376 4538 4134 23650
Detected by number of BGPMon peers: 5

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