Possible BGP hijack

Beginning at 2018-10-11 20:23:12, we detected a possible BGP hijack.

Prefix 172.0.0.0/12, Normally announced by AS7018 AT&T Services, Inc.

Starting at 2018-10-11 20:23:12, a more specific route (172.11.10.0/24) was announced by ASN 53158.

This was detected by 2 BGPMon peers.

Expected
Start time: 2018-10-11 20:23:12 UTC
Expected prefix: 172.0.0.0/12
Expected ASN: 7018 (AT&T Services, Inc.)
Event Details
Detected advertisement: 172.11.10.0/24
Detected Origin ASN 53158 (Net Turbo Telecom)
Detected AS Path 28140 53158
Detected by number of BGPMon peers: 2

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