How to find all of an ISP's ASNs

Dhia Mahjoub dhia at opendns.com
Tue Oct 25 19:35:47 UTC 2016


Hello,

You can use this
http://www.cidr-report.org/as2.0/autnums.html

Best


Dhia Mahjoub, PhD
Technical Leader, OpenDNS, part of Cisco


On Tue, Oct 25, 2016 at 10:41 AM, 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
>
>
>


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