Possible BGP hijack

Beginning at 2023-07-20 11:29:11 UTC, we detected a possible BGP hijack.

Prefix 141.11.8.0/24, is normally announced by AS205817 TECHNICOLOR-AS, FR.

But beginning at 2023-07-20 11:29:11, the same prefix (141.11.8.0/24) was also announced by ASN 20148.

This was detected by 12 BGPMon peers.

Expected
Start time: 2023-07-20 11:29:11 UTC
Expected prefix: 141.11.8.0/24
Expected ASN: 205817 (TECHNICOLOR-AS, FR)
Event Details
Detected advertisement: 141.11.8.0/24
Detected Origin ASN 20148 (Unknown)
Detected AS Path 34019 8218 20148 20148 20148 20148
Detected by number of BGPMon peers: 12

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