On Fri, Oct 11, 2019 at 08:14:00PM +0900,
 Masataka Ohta <mo...@necom830.hpcl.titech.ac.jp> wrote 
 a message of 34 lines which said:

> they said they have never transferred the block

> So, RADB entry:
...
>       route:      146.51.0.0/16
>       origin:     AS174
...
> is confirmed to be registration fraud.

I nitpick, but "never transferred the block" is not the same thing as
"never authorized Cogent to announce it".

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