Possible BGP hijack

Beginning at 2021-11-25 08:25:05, we detected a possible BGP hijack.

Prefix 64.40.48.0/20, Normally announced by AS7962 EXISNET, US

Starting at 2021-11-25 08:25:05, a more specific route (64.40.56.0/21) was announced by ASN 210457.

This was detected by 25 BGPMon peers.

Expected
Start time: 2021-11-25 08:25:05 UTC
Expected prefix: 64.40.48.0/20
Expected ASN: 7962 (EXISNET, US)
Event Details
Detected advertisement: 64.40.56.0/21
Detected Origin ASN 210457 ()
Detected AS Path 202365 57866 1299 31133 13259 210457 210457
Detected by number of BGPMon peers: 25

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