23.57.76.0/24

ip:	23.57.76.0 a23-57-76-0.deploy.static.akamaitechnologies.com
loc:	India, Kolkata (West Bengal)  
isp:	AS20940 Akamai International B.V. » Akamai International B.V. » Akamai Technologies, Inc. 335.43 ms
route:	23.57.76.0/24, AKAMAI - Akamai Technologies, Inc., US (Kolkata) ... 
reg:	23.32.0.0/11, US, ARIN, 2011-05-16
asn:	AS20940 - AKAMAI-ASN1 Akamai International B.V., NL
addr:	  145 Broadway Cambridge MA 2142 US
online:	  183 » latency: 182 ms (182ms) 

see also:
   23.32.0.0/11     AS20940  AKAMAI Akamai Technologies, Inc., US