Possible BGP hijack

Beginning at 2018-10-26 07:05:04, we detected a possible BGP hijack.

Prefix 201.255.0.0/16, Normally announced by AS22927 Telefonica de Argentina

Starting at 2018-10-26 07:05:04, a more specific route (201.255.192.0/18) was announced by ASN 7738.

This was detected by 38 BGPMon peers.

Expected
Start time: 2018-10-26 07:05:04 UTC
Expected prefix: 201.255.0.0/16
Expected ASN: 22927 (Telefonica de Argentina)
Event Details
Detected advertisement: 201.255.192.0/18
Detected Origin ASN 7738 (Telemar Norte Leste S.A.)
Detected AS Path 33362 6461 6453 7738
Detected by number of BGPMon peers: 38

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