Possible BGP hijack

Beginning at 2022-10-26 17:15:15 UTC, we detected a possible BGP hijack.

Prefix 192.122.171.0/24, is normally announced by AS135047 DDNZL-AS-AP NTT NEW ZEALAND LIMITED, NZ.

But beginning at 2022-10-26 17:15:15, the same prefix (192.122.171.0/24) was also announced by ASN 2147483647.

This was detected by 7 BGPMon peers.

Expected
Start time: 2022-10-26 17:15:15 UTC
Expected prefix: 192.122.171.0/24
Expected ASN: 135047 (DDNZL-AS-AP NTT NEW ZEALAND LIMITED, NZ)
Event Details
Detected advertisement: 192.122.171.0/24
Detected Origin ASN 2147483647 ()
Detected AS Path 394256 54527 13768 9500 9901 4768 38079 7714 4259840080
Detected by number of BGPMon peers: 7

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