Possible BGP hijack

Beginning at 2018-11-19 00:03:47, we detected a possible BGP hijack.

Prefix, Normally announced by AS21928 T-MOBILE-AS21928 - T-Mobile USA, Inc., US

Starting at 2018-11-19 00:03:47, a more specific route ( was announced by ASN 265345.

This was detected by 18 BGPMon peers.

Start time: 2018-11-19 00:03:47 UTC
Expected prefix:
Expected ASN: 21928 (T-MOBILE-AS21928 - T-Mobile USA, Inc., US)
Event Details
Detected advertisement:
Detected Origin ASN 265345 (HUP TELECOM LTDA, BR)
Detected AS Path 28329 52872 265345
Detected by number of BGPMon peers: 18

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