Possible BGP hijack

Beginning at 2023-09-19 14:06:18 UTC, we detected a possible BGP hijack.

Prefix 122.10.254.0/24, is normally announced by AS21859 ZEN-ECN, US.

But beginning at 2023-09-19 14:06:18, the same prefix (122.10.254.0/24) was also announced by ASN 137554.

This was detected by 4 BGPMon peers.

Expected
Start time: 2023-09-19 14:06:18 UTC
Expected prefix: 122.10.254.0/24
Expected ASN: 21859 (ZEN-ECN, US)
Event Details
Detected advertisement: 122.10.254.0/24
Detected Origin ASN 137554 (DREAMNET-AS-AP Dream.Net, BD)
Detected AS Path 51944 57463 9498 58599 137554
Detected by number of BGPMon peers: 4

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