Possible BGP hijack

Beginning at 2021-12-10 17:03:59, we detected a possible BGP hijack.

Prefix 143.233.0.0/16, Normally announced by AS2546 ARIADNE-T Ariadne-t Network, GR

Starting at 2021-12-10 17:03:59, a more specific route (143.233.241.0/24) was announced by ASN 3128.

This was detected by 3 BGPMon peers.

Expected
Start time: 2021-12-10 17:03:59 UTC
Expected prefix: 143.233.0.0/16
Expected ASN: 2546 (ARIADNE-T Ariadne-t Network, GR)
Event Details
Detected advertisement: 143.233.241.0/24
Detected Origin ASN 3128 (BRUWS-AS3128, US)
Detected AS Path 40387 23473 3128
Detected by number of BGPMon peers: 3

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