Possible BGP hijack

Beginning at 2019-07-10 13:52:00, we detected a possible BGP hijack.

Prefix 221.110.0.0/16, Normally announced by AS17676 GIGAINFRA Softbank BB Corp., JP

Starting at 2019-07-10 13:52:00, a more specific route (221.110.152.0/24) was announced by ASN 20940.

This was detected by 8 BGPMon peers.

Expected
Start time: 2019-07-10 13:52:00 UTC
Expected prefix: 221.110.0.0/16
Expected ASN: 17676 (GIGAINFRA Softbank BB Corp., JP)
Event Details
Detected advertisement: 221.110.152.0/24
Detected Origin ASN 20940 (AKAMAI-ASN1, US)
Detected AS Path 18356 9931 4651 4637 20940
Detected by number of BGPMon peers: 8

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