23.57.91.0/24

ip:	23.57.91.0 a23-57-91-0.deploy.static.akamaitechnologies.com
loc:	United States, Santa Clara (California)  
isp:	AS20940 Akamai International B.V. » Akamai International, BV » Akamai Technologies 441.986 ms
route:	23.57.91.0/24, AIBV - Akamai International, BV, US (Santa Clara) ... 
reg:	23.32.0.0/11, US, ARIN, 2011-05-16
asn:	AS20940 - AKAMAI-ASN1 Akamai International B.V., NL
addr:	  Prins Bernhardplein 200 Amsterdam 1097 JB NL
online:	  249 » latency: 169 ms (169ms) 

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