Possible BGP hijack

Beginning at 2023-10-18 06:17:48, we detected a possible BGP hijack.

Prefix 154.223.32.0/19, Normally announced by AS328608 Africa-on-Cloud-AS, ZA

Starting at 2023-10-18 06:17:48, a more specific route (154.223.39.0/24) was announced by ASN 63139.

This was detected by 37 BGPMon peers.

Expected
Start time: 2023-10-18 06:17:48 UTC
Expected prefix: 154.223.32.0/19
Expected ASN: 328608 (Africa-on-Cloud-AS, ZA)
Event Details
Detected advertisement: 154.223.39.0/24
Detected Origin ASN 63139 (Unknown)
Detected AS Path 48200 1299 5511 6663 138915 63139
Detected by number of BGPMon peers: 37

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