Re: [asterisk-biz] Can anyone transfer a Canadian number

That's true. I guess I meant more in theory than practice.

On Jan 3, 2009, at 3:16 PM, "Kristian Kielhofner" <kristian.kielhofner@gmail.com
> wrote:

> On 1/3/09, Alex Balashov <abalashov@evaristesys.com> wrote:
>> That would depend on where the number went "back" to.
>>
>> Underlying carrier? Pooling? Another level of ITSP resale?
>>
>> Number block ownership and routing is assigned. Carriers can't just
>> pick a number and start providing it. Kind of like IP addresses and
>> BGP.
>>
>
> I don't know if I would make the comparison to IP and BGP...
>
> It's widely known (and demonstrated) that very, very few (if any)
> upstreams filter and/or verify route advertisements. It's really a
> mess.
>
> Spammers advertised "unused" blocks they find and spam from them.
>
> Pakistani Telecom jacks YouTube somewhat-globally with a more
> specific advertisement of YouTube's IP space.
>
> Pilosov/Kapela attack, etc.
>
> Totally off topic but I though I'd at least bring it up.
>
> --
> Kristian Kielhofner
> http://blog.krisk.org
> http://www.submityoursip.com
> http://www.astlinux.org
> http://www.star2star.com
>
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