Possible BGP hijack

Beginning at 2021-11-21 10:57:38, we detected a possible BGP hijack.

Prefix, Normally announced by AS202521 NEXCESS-AMS01, US

Starting at 2021-11-21 10:57:38, a more specific route ( was announced by ASN 19905.

This was detected by 113 BGPMon peers.

Start time: 2021-11-21 10:57:38 UTC
Expected prefix:
Expected ASN: 202521 (NEXCESS-AMS01, US)
Event Details
Detected advertisement:
Detected Origin ASN 19905 (NEUSTAR-AS6, US)
Detected AS Path 29097 13030 2914 19905
Detected by number of BGPMon peers: 113

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