Possible BGP hijack

Beginning at 2017-03-23 20:46:21, we detected a possible BGP hijack.

Prefix 2800::/12, Normally announced by AS13489 EPM Telecomunicaciones S.A. E.S.P.

Starting at 2017-03-23 20:46:21, a more specific route (2804:1b1:c000::/35) was announced by ASN 18881.

This was detected by 94 BGPMon peers.

Start time: 2017-03-23 20:46:21 UTC
Expected prefix: 2800::/12
Expected ASN: 13489 (EPM Telecomunicaciones S.A. E.S.P.)
Event Details
Detected advertisement: 2804:1b1:c000::/35
Detected Origin ASN 18881 (TELEFÔNICA BRASIL S.A)
Detected AS Path 197264 29467 6939 12956 18881
Detected by number of BGPMon peers: 94

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