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Contact Information: 
a. [JPNIC Handle]               DU042JP
c. [Last, First]                Umezawa, Daisuke
d. [E-Mail]                     umezawa@fcc.ad.jp
g. [Organization]               Rakuten Mobile, Inc.
l. [Division]                   VOIP Technology Department, IP Technical Section
n. [Title]                      
o. [TEL]                        050-5528-8300
p. [FAX]                        
y. [Reply Mail]                 
[Last Update]                   2020/10/02 09:05:04(JST)
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