Possible BGP hijack

Beginning at 2021-02-27 02:06:55 UTC, we detected a possible BGP hijack.

Prefix 2001:3c0::/35, is normally announced by AS7516 TOHKNET Tohoku Intelligent Telecommunication Co., Inc., JP.

But beginning at 2021-02-27 02:06:55, the same prefix (2001:3c0::/35) was also announced by ASN 269684.

This was detected by 3 BGPMon peers.

Expected
Start time: 2021-02-27 02:06:55 UTC
Expected prefix: 2001:3c0::/35
Expected ASN: 7516 (TOHKNET Tohoku Intelligent Telecommunication Co., Inc., JP)
Event Details
Detected advertisement: 2001:3c0::/35
Detected Origin ASN 269684 (LANFIBRA TELECOMUNICACOES - EIRELI, BR)
Detected AS Path 52873 266539 269684
Detected by number of BGPMon peers: 3

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