Possible BGP hijack

Beginning at 2020-03-17 05:43:42, we detected a possible BGP hijack.

Prefix 213.199.128.0/18, Normally announced by AS8075 MICROSOFT-CORP-MSN-AS-BLOCK, US

Starting at 2020-03-17 05:43:42, a more specific route (213.199.135.0/24) was announced by ASN 12297.

This was detected by 142 BGPMon peers.

Expected
Start time: 2020-03-17 05:43:42 UTC
Expected prefix: 213.199.128.0/18
Expected ASN: 8075 (MICROSOFT-CORP-MSN-AS-BLOCK, US)
Event Details
Detected advertisement: 213.199.135.0/24
Detected Origin ASN 12297 (ARMENTEL Republic of Armenia, AM)
Detected AS Path 203086 42673 3356 3216 12297
Detected by number of BGPMon peers: 142

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