Possible BGP hijack

Beginning at 2023-06-07 20:44:40 UTC, we detected a possible BGP hijack.

Prefix, is normally announced by AS35950 VITNA-GSO, US.

But beginning at 2023-06-07 20:44:40, the same prefix ( was also announced by ASN 1299.

This was detected by 52 BGPMon peers.

Start time: 2023-06-07 20:44:40 UTC
Expected prefix:
Expected ASN: 35950 (VITNA-GSO, US)
Event Details
Detected advertisement:
Detected Origin ASN 1299 (TWELVE99 Twelve99, Telia Carrier, SE)
Detected AS Path 63956 1299
Detected by number of BGPMon peers: 52

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