Possible BGP hijack

Beginning at 2022-11-26 14:54:29 UTC, we detected a possible BGP hijack.

Prefix 39.104.0.0/15, is normally announced by AS37963 CNNIC-ALIBABA-CN-NET-AP Hangzhou Alibaba Advertising Co.,Ltd., CN.

But beginning at 2022-11-26 14:54:29, the same prefix (39.104.0.0/15) was also announced by ASN 59239.

This was detected by 6 BGPMon peers.

Expected
Start time: 2022-11-26 14:54:29 UTC
Expected prefix: 39.104.0.0/15
Expected ASN: 37963 (CNNIC-ALIBABA-CN-NET-AP Hangzhou Alibaba Advertising Co.,Ltd., CN)
Event Details
Detected advertisement: 39.104.0.0/15
Detected Origin ASN 59239 (ITELLIMITED-AS-AP iTel Limited, BD)
Detected AS Path 15547 4455 132602 59239
Detected by number of BGPMon peers: 6

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