133.242.21.159

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[ add '/e' at the end of command, e.g. 'whois -h whois.nic.ad.jp xxx/e'.      ]

Network Information:            
a. [Network Number]             133.242.21.0/24
b. [Network Name]               SAKURA-NET
g. [Organization]               SAKURA Internet Inc.
                                
m. [Administrative Contact]     KT749JP
n. [Technical Contact]          JP00072233
o. [Abuse]                      
p. [Nameserver]                 ns1.dns.ne.jp
p. [Nameserver]                 ns2.dns.ne.jp
[Assigned Date]                 2011/11/15
[Return Date]                   
[Last Update]                   2011/11/15 16:56:06(JST)
                                
Less Specific Info.
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SAKURA Internet Inc.
                     [Allocation]                               133.242.0.0/16

More Specific Info.
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No match!!