23.197.72.0/24

ip:	23.197.72.0 a23-197-72-0.deploy.static.akamaitechnologies.com
loc:	Ireland, Dublin (Leinster)  
isp:	AS20940 Akamai International B.V. » Akamai International B.V. » Akamai Technologies, Inc. 352.763 ms
route:	23.197.72.0/24, AKAMAI - Akamai Technologies, Inc., US (Dublin) ... 
reg:	23.192.0.0/11, US, ARIN, 2013-07-12
asn:	AS20940 - AKAMAI-ASN1 Akamai International B.V., NL
addr:	  145 Broadway Cambridge MA 2142 US
online:	  32 » latency: 47 ms (47ms) 

see also:
   23.192.0.0/11    AS20940  AKAMAI Akamai Technologies, Inc., US
   23.197.64.0/20   AS20940  AKAMAI Akamai Technologies, Inc., US