23.0.0.0/24

ip:	23.0.0.0 a23-0-0-0.deploy.static.akamaitechnologies.com
loc:	United States, Cambridge (Massachusetts)  
isp:	AS20940 Akamai International B.V. » Akamai International B.V. » Akamai Technologies, Inc. 346.247 ms
route:	23.0.0.0/24, AKAMAI - Akamai Technologies, Inc., US (Cambridge (Area 2/MIT)) ... 
reg:	23.0.0.0/12, US, ARIN, 2010-12-17
asn:	AS20940 - AKAMAI-ASN1 Akamai International B.V., NL
addr:	  145 Broadway Cambridge MA 2142 US
online:	  1 » latency: 26 ms (26ms) 

see also:
   23.0.0.0/12      AS20940  AKAMAI Akamai Technologies, Inc., US