Possible BGP hijack

Beginning at 2020-07-30 17:27:16 UTC, we detected a possible BGP hijack.

Prefix 153.13.21.0/24, is normally announced by AS9466 UUNET-JP-AP UUNET Japan Limited, JP.

But beginning at 2020-07-30 17:27:16, the same prefix (153.13.21.0/24) was also announced by ASN 10753.

This was detected by 149 BGPMon peers.

Expected
Start time: 2020-07-30 17:27:16 UTC
Expected prefix: 153.13.21.0/24
Expected ASN: 9466 (UUNET-JP-AP UUNET Japan Limited, JP)
Event Details
Detected advertisement: 153.13.21.0/24
Detected Origin ASN 10753 (LVLT-10753, US)
Detected AS Path 393775 7029 3257 3356 10753
Detected by number of BGPMon peers: 149

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