Possible BGP hijack

Beginning at 2022-08-18 16:53:38 UTC, we detected a possible BGP hijack.

Prefix 5.133.167.0/24, is normally announced by AS6830 LIBERTYGLOBAL Liberty Global formerly UPC Broadband Holding, aka AORTA, NL.

But beginning at 2022-08-18 16:53:38, the same prefix (5.133.167.0/24) was also announced by ASN 43847.

This was detected by 4 BGPMon peers.

Expected
Start time: 2022-08-18 16:53:38 UTC
Expected prefix: 5.133.167.0/24
Expected ASN: 6830 (LIBERTYGLOBAL Liberty Global formerly UPC Broadband Holding, aka AORTA, NL)
Event Details
Detected advertisement: 5.133.167.0/24
Detected Origin ASN 43847 (NBISERV-AS, DE)
Detected AS Path 49463 8218 13237 196714 43847
Detected by number of BGPMon peers: 4

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