Craigslist technical contact - IP Ranges blocked

Anne P. Mitchell, Esq. amitchell at
Mon Feb 18 19:28:14 UTC 2019

Erik, please contact me offlist with details (IP block, etc.).  We'll shake the tree for you.


Anne P. Mitchell, 
Attorney at Law
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> On Feb 17, 2019, at 11:01 PM, Erik Zhu <erik.zhu at> wrote:
> Hello All,
> Does anyone know the best way to get connect to Craiglist technical 
> support regarding the blocked IP ranges. We are an ISP in Canada, and 
> since early this year we noticed that most of our IP blocks are blocked 
> on some of the Craigslist's servers. One easy example is finding any 
> items on Craigslist, hit reply, and gives an error "Sorry, something 
> went wrong", the web analyzer indicates status code 403 forbidden.
> I understand that if individual subscriber IP could be automatically 
> blocked due to certain reasons by Craigslist, but I don't know why our 
> entire IP blocks could be blocked, even some IP ranges are never 
> assigned to any active services.
> Did anyone have the encountered the same issue before, how can we get it 
> resolved?
> Thanks,
> Erik

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