On Sat, Jan 28, 2017 at 2:22 AM, Shahab Vahabzadeh <sh.vahabzadeh@gmail.com> wrote:

Hello Hello, Can anybody help me to find out IP Address Ranges of Akamai and Instagram? I wanna do some optimizations on my cache side? Thanks

I do not know the difference between Akamai's corporate blocks and those used for caching. I also do not know the value of what you're trying to accomplish. But searching naively, there are at least 7291 Akamai IP blocks: http://bgp.he.net/search?search%5Bsearch%5D=AKAMAI-AS&commit=Search Those 7291 blocks can be summarized on bit boundaries down to 172 blocks: https://gist.github.com/roycewilliams/31c3eeb030bdd5f557d845c344933c67 Using this approach is a good start, but it cannot be complete. Some caches are colocated with ISPs and use their IP space. Royce

Akamai does not give out the IP space they use, for good and valid reasons. Also, Akamai -is- a cache (just pretend for sake of this argument that none of you is ridiculously overly pedantic). If you are trying to cache on-net, why not just ask them to do it for you? It’s free. https://www.akamai.com/us/en/multimedia/documents/akamai/akamai-accelerated-... If you do not qualify for free on-net caches, and cannot peer with them anywhere, you could try doing a lookup on some popular Akamai customers, or even just www.akamai.com, then “optimize” that block. But that might not work as well as you hope. Akamai customers want to see every hit, many of them put in ‘cache busting’ code. Good luck. -- TTFN, patrick

On Jan 28, 2017, at 6:22 AM, Shahab Vahabzadeh <sh.vahabzadeh@gmail.com> wrote:

Hello Hello, Can anybody help me to find out IP Address Ranges of Akamai and Instagram? I wanna do some optimizations on my cache side? Thanks

-- Regards, Shahab Vahabzadeh, Network Engineer and System Administrator

PGP Key Fingerprint = 1C43 988E 01A8 4D95 B662 9118 CD94 9F10 4DF4 6163