Possible BGP hijack

Beginning at 2023-03-09 13:49:53, we detected a possible BGP hijack.

Prefix 193.57.94.0/23, Normally announced by AS6830 LIBERTYGLOBAL Liberty Global formerly UPC Broadband Holding, aka AORTA, NL

Starting at 2023-03-09 13:49:53, a more specific route (193.57.94.0/24) was announced by ASN 209854.

This was detected by 6 BGPMon peers.

Expected
Start time: 2023-03-09 13:49:53 UTC
Expected prefix: 193.57.94.0/23
Expected ASN: 6830 (LIBERTYGLOBAL Liberty Global formerly UPC Broadband Holding, aka AORTA, NL)
Event Details
Detected advertisement: 193.57.94.0/24
Detected Origin ASN 209854 (SURFSHARK, VG)
Detected AS Path 28300 14840 209854
Detected by number of BGPMon peers: 6

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