Possible BGP hijack

Beginning at 2023-08-30 04:23:54, we detected a possible BGP hijack.

Prefix 180.223.64.0/18, Normally announced by AS7018 ATT-INTERNET4, US

Starting at 2023-08-30 04:23:54, a more specific route (180.223.72.0/21) was announced by ASN 139076.

This was detected by 54 BGPMon peers.

Expected
Start time: 2023-08-30 04:23:54 UTC
Expected prefix: 180.223.64.0/18
Expected ASN: 7018 (ATT-INTERNET4, US)
Event Details
Detected advertisement: 180.223.72.0/21
Detected Origin ASN 139076 (ENJOYVC-AS-AP EnjoyVC Japan Corporation, JP)
Detected AS Path 34019 3303 6939 139076
Detected by number of BGPMon peers: 54

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