Possible BGP hijack

Beginning at 2019-06-05 14:28:42, we detected a possible BGP hijack.

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

Starting at 2019-06-05 14:28:42, a more specific route ( was announced by ASN 53087.

This was detected by 20 BGPMon peers.

Start time: 2019-06-05 14:28:42 UTC
Expected prefix:
Expected ASN: 21928 (T-MOBILE-AS21928 - T-Mobile USA, Inc., US)
Event Details
Detected advertisement:
Detected Origin ASN 53087 (TELY Ltda., BR)
Detected AS Path 52873 53087
Detected by number of BGPMon peers: 20

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