Possible BGP hijack

Beginning at 2019-04-05 07:30:53, 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 2019-04-05 07:30:53, a more specific route (172.12.20.0/24) was announced by ASN 265780.

This was detected by 180 BGPMon peers.

Expected
Start time: 2019-04-05 07:30:53 UTC
Expected prefix: 172.0.0.0/12
Expected ASN: 7018 (ATT-INTERNET4 - AT&T Services, Inc., US)
Event Details
Detected advertisement: 172.12.20.0/24
Detected Origin ASN 265780 (FLYNET BUSINESS AND SYSTEM, SA de CV, SV)
Detected AS Path 36692 2914 5511 52468 52468 52468 52468 52468 52468 52468 52468 52468 52468 52468 265780
Detected by number of BGPMon peers: 180

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