Possible BGP hijack

Beginning at 2021-01-05 16:53:31, we detected a possible BGP hijack.

Prefix 45.146.56.0/22, Normally announced by AS25596 CAMBRIUM-AS, NL

Starting at 2021-01-05 16:53:31, a more specific route (45.146.58.0/23) was announced by ASN 13487.

This was detected by 9 BGPMon peers.

Expected
Start time: 2021-01-05 16:53:31 UTC
Expected prefix: 45.146.56.0/22
Expected ASN: 25596 (CAMBRIUM-AS, NL)
Event Details
Detected advertisement: 45.146.58.0/23
Detected Origin ASN 13487 (ULTRA-PACKET, US)
Detected AS Path 393775 7029 6461 26094 11877 11877 11877 11877 11877 13487 13487
Detected by number of BGPMon peers: 9

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