Possible BGP hijack

Beginning at 2018-11-23 09:20:26, we detected a possible BGP hijack.

Prefix 171.64.0.0/14, Normally announced by AS32 STANFORD - Stanford University, US

Starting at 2018-11-23 09:20:26, a more specific route (171.66.120.0/21) was announced by ASN 4538.

This was detected by 16 BGPMon peers.

Expected
Start time: 2018-11-23 09:20:26 UTC
Expected prefix: 171.64.0.0/14
Expected ASN: 32 (STANFORD - Stanford University, US)
Event Details
Detected advertisement: 171.66.120.0/21
Detected Origin ASN 4538 (ERX-CERNET-BKB China Education and Research Network Center, CN)
Detected AS Path 28140 53158 4809 4134 4538
Detected by number of BGPMon peers: 16

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