What is the IP range for some of the social medial sites?

Is there any way to figure out the IP range of specific service, i.e. Facebook or Instagram so I can block them or low traffic priority for those links
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Andy MIT Systems ManagerCommented:
I believe the Facebook Develoepr page has a command you can run to retrieve a list of IP addresses in use. (https://stackoverflow.com/questions/11164672/list-of-ip-space-used-by-facebook)


Note that companies like Facebook and Instagram will update their IP range often as they bring in new servers and systems (plus have loads of sub-sites for features and apps). You'd be better off with a system that can block/limit based on URL rather than IP address.
Shaun VermaakTechnical SpecialistCommented:
Is there any way to figure out the IP range of specific service, i.e. Facebook or Instagram so I can block them or low traffic priority for those links
No, these change too frequently as instances spin up and shut down as the load changes. Also does not take DoSS protection in an account.
Your biggest problem becomes when they use CDNs. So more ideally find another way to handle the blocking, namely by URL or category.
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nociSoftware EngineerCommented:
Finding out all AS numbers of a company and then query whois for the routes belonging to that might be your best option.
That might leave your with a list with a lot of duplicate/overlapping routes that need to be reduced.
Mal OsborneAlpha GeekCommented:
If you run you own DNS server in house, then they could all be from the POV of each workstation.  Just add an entry for each site you want blocked.

Other than that, there are a LOT of firewalls out there fram a variety of manufacturers that can block catagories of websites, using a database that they maintain. Cisco 5500 series, Sonicwall TZ series and Watchguard Firebox can all do this. Just configure to block "social media", and probably "known phishing sites", "adult content" or whatever.
nociSoftware EngineerCommented:
@Mal: i think you mean  and for good measure also ::1/128 for IPv6.

Then again look into the pi-hole project.which does that for a huge bunch of advertising sites.
There are VM's for pi-hole as well, although for home use it could be run along side a router.
pi-hole uses DNS-MASQ for transforming lots of URL to a local address.

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