Possible BGP hijack

Beginning at 2020-10-19 12:47:34, we detected a possible BGP hijack.

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

Starting at 2020-10-19 12:47:34, a more specific route (172.15.0.0/24) was announced by ASN 140189.

This was detected by 97 BGPMon peers.

Expected
Start time: 2020-10-19 12:47:34 UTC
Expected prefix: 172.0.0.0/12
Expected ASN: 7018 (ATT-INTERNET4, US)
Event Details
Detected advertisement: 172.15.0.0/24
Detected Origin ASN 140189 (TREELINK-AS-IN Treelink Broadband Private Limited, IN)
Detected AS Path 267170 28140 3356 4637 9498 18002 140189
Detected by number of BGPMon peers: 97

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