Possible BGP hijack

Beginning at 2021-05-10 22:03:20, we detected a possible BGP hijack.

Prefix 172.0.0.0/12, Normally announced by AS7018 ATT-INTERNET4, US

Starting at 2021-05-10 22:03:20, a more specific route (172.2.0.0/24) was announced by ASN 207416.

This was detected by 27 BGPMon peers.

Expected
Start time: 2021-05-10 22:03:20 UTC
Expected prefix: 172.0.0.0/12
Expected ASN: 7018 (ATT-INTERNET4, US)
Event Details
Detected advertisement: 172.2.0.0/24
Detected Origin ASN 207416 (WINTELECOM, UA)
Detected AS Path 264415 23106 52320 6461 28917 199995 207416
Detected by number of BGPMon peers: 27

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