Possible BGP hijack

Beginning at 2022-05-11 20:46:20 UTC, we detected a possible BGP hijack.

Prefix 31.204.8.0/21, is normally announced by AS3356 LEVEL3, US.

But beginning at 2022-05-11 20:46:20, the same prefix (31.204.8.0/21) was also announced by ASN 207710.

This was detected by 47 BGPMon peers.

Expected
Start time: 2022-05-11 20:46:20 UTC
Expected prefix: 31.204.8.0/21
Expected ASN: 3356 (LEVEL3, US)
Event Details
Detected advertisement: 31.204.8.0/21
Detected Origin ASN 207710 (WSTELECOM_DE, LV)
Detected AS Path 202365 206499 34549 5511 174 207710
Detected by number of BGPMon peers: 47

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