How to find all of an ISP's ASNs

[yang.yu.list at gmail.com (Yang Yu)]

as-set if they keep their routing registry updated?

something like this
http://bgp.he.net/irr/as-set/AS-RR-Res

Normally I use IRR Explorer, but somehow the return is empty
http://irrexplorer.nlnog.net/search/AS-RR-Res


Yang

On Tue, Oct 25, 2016 at 12:41 PM, Gary Baribault <gary at baribault.net> wrote:
> Hi folks, how to I find all ASNs that belong to an ISP? I want to block
> access to my IoT cameras from the world other than the two local major ISPs
> (keeping last Friday in mind!)
>
> Gary B
>
>