Possible BGP hijack

Beginning at 2018-10-22 19:05:03, we detected a possible BGP hijack.

Prefix 185.172.28.0/22, Normally announced by AS203912 Sicres SRL

Starting at 2018-10-22 19:05:03, a more specific route (185.172.30.228/32) was announced by ASN 5588.

This was detected by 3 BGPMon peers.

Expected
Start time: 2018-10-22 19:05:03 UTC
Expected prefix: 185.172.28.0/22
Expected ASN: 203912 (Sicres SRL)
Event Details
Detected advertisement: 185.172.30.228/32
Detected Origin ASN 5588 (T-Mobile Czech Republic a.s.)
Detected AS Path 50048 3216 5588
Detected by number of BGPMon peers: 3

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