Possible BGP hijack

Beginning at 2018-10-22 11:52:48 UTC, we detected a possible BGP hijack.

Prefix 139.5.239.0/24, is normally announced by AS136334 Vortex Netsol Private Limited.

But beginning at 2018-10-22 11:52:48, the same prefix (139.5.239.0/24) was also announced by ASN 6453.

This was detected by 105 BGPMon peers.

Expected
Start time: 2018-10-22 11:52:48 UTC
Expected prefix: 139.5.239.0/24
Expected ASN: 136334 (Vortex Netsol Private Limited)
Event Details
Detected advertisement: 139.5.239.0/24
Detected Origin ASN 6453 (TATA COMMUNICATIONS (AMERICA) INC)
Detected AS Path 43317 20485 6453
Detected by number of BGPMon peers: 105

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