Possible BGP hijack

Beginning at 2020-07-05 06:07:05 UTC, we detected a possible BGP hijack.

Prefix 223.5.5.0/24, is normally announced by AS37963 CNNIC-ALIBABA-CN-NET-AP Hangzhou Alibaba Advertising Co.,Ltd., CN.

But beginning at 2020-07-05 06:07:05, the same prefix (223.5.5.0/24) was also announced by ASN 2147483647.

This was detected by 3 BGPMon peers.

Expected
Start time: 2020-07-05 06:07:05 UTC
Expected prefix: 223.5.5.0/24
Expected ASN: 37963 (CNNIC-ALIBABA-CN-NET-AP Hangzhou Alibaba Advertising Co.,Ltd., CN)
Event Details
Detected advertisement: 223.5.5.0/24
Detected Origin ASN 2147483647 ()
Detected AS Path 11170 9498 134331 45102 45102 4200015045
Detected by number of BGPMon peers: 3

Watch the replay of this event

About BGPlay