64.100.0.0/14

ip:	64.100.0.0 
loc:	United States, Morrisville (North Carolina)  
isp:	AS109 CISCO SYSTEMS, INC. » CISCO SYSTEMS, INC. » Cisco Systems, Inc. 140.594 ms
route:	64.100.0.0/14, CS-2831 - CISCO SYSTEMS, INC., US (Morrisville) ... 
reg:	64.100.0.0/14, US, ARIN, 2000-05-24
addr:	  251 LITTLE FALLS DRIVE WILMINGTON DE 19808 US
online:	  1.878 » latency: 104 ms (139ms) 

see also:
   64.100.0.0/16    AS109    CISCO-GEN-6 CISCO SYSTEMS, INC., US
   64.101.0.0/18    AS109    CISCO-GEN-6 CISCO SYSTEMS, INC., US
   64.101.64.0/18   AS109    CISCO-GEN-6 CISCO SYSTEMS, INC., US
   64.101.96.0/19   AS109    CISCO-GEN-6 CISCO SYSTEMS, INC., US
   64.101.128.0/18  AS109    CISCO-GEN-6 CISCO SYSTEMS, INC., US
   64.101.192.0/19  AS109    CISCO-GEN-6 CISCO SYSTEMS, INC., US
   64.101.224.0/19  AS109    CISCO-GEN-6 CISCO SYSTEMS, INC., US
   64.102.0.0/16    AS109    CISCO-GEN-6 CISCO SYSTEMS, INC., US
   64.102.249.0/24  AS109    CISCO-GEN-6 CISCO SYSTEMS, INC., US
   64.103.0.0/16    AS109    CISCO-GEN-6 CISCO SYSTEMS, INC., US
   64.103.0.0/17    AS109    CISCO-GEN-6 CISCO SYSTEMS, INC., NL
   64.103.40.0/21   AS109    CISCO-GEN-6 CISCO SYSTEMS, INC., GB
   64.103.48.0/21   AS109    CISCO-GEN-6 CISCO SYSTEMS, INC., US
   64.103.64.0/19   AS109    CISCO-GEN-6 CISCO SYSTEMS, INC., GB
   64.103.96.0/20   AS109    CISCO-GEN-6 CISCO SYSTEMS, INC., GB
   64.103.128.0/17  AS109    CISCO-GEN-6 CISCO SYSTEMS, INC., IN