Possible BGP hijack

Beginning at 2019-05-06 09:34:08, we detected a possible BGP hijack.

Prefix 172.0.0.0/12, Normally announced by AS7018 ATT-INTERNET4 - AT&T Services, Inc., US

Starting at 2019-05-06 09:34:08, a more specific route (172.10.101.0/24) was announced by ASN 51079.

This was detected by 155 BGPMon peers.

Expected
Start time: 2019-05-06 09:34:08 UTC
Expected prefix: 172.0.0.0/12
Expected ASN: 7018 (ATT-INTERNET4 - AT&T Services, Inc., US)
Event Details
Detected advertisement: 172.10.101.0/24
Detected Origin ASN 51079 (MOKADI, PL)
Detected AS Path 49497 16243 47886 3356 1299 51079
Detected by number of BGPMon peers: 155

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