Possible BGP hijack

Beginning at 2020-07-30 01:15:44, we detected a possible BGP hijack.

Prefix 177.132.96.0/19, Normally announced by AS18881 TELEFONICA BRASIL S.A, BR

Starting at 2020-07-30 01:15:44, a more specific route (177.132.96.0/20) was announced by ASN 10990.

This was detected by 135 BGPMon peers.

Expected
Start time: 2020-07-30 01:15:44 UTC
Expected prefix: 177.132.96.0/19
Expected ASN: 18881 (TELEFONICA BRASIL S.A, BR)
Event Details
Detected advertisement: 177.132.96.0/20
Detected Origin ASN 10990 (ATLDC, US)
Detected AS Path 328145 37271 3356 1299 7219 10990
Detected by number of BGPMon peers: 135

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