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	Prefix	Description
	138.212.0.0/17	Asahi Kasei Networks Corporation
	138.212.110.0/24	Asahi Kasei Networks Corporation
	202.11.64.0/24	MITSUI-SOKO HOLDINGS Co., Ltd.

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS4725	SoftBank Corp.	✔	✘
	AS4713	NTT Communications Corporation (OCN)	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS4725	SoftBank Corp.	✔	✘
	AS4713	NTT Communications Corporation (OCN)	✔	✘

[ JPNIC database provides information regarding IP address and ASN. Its use   ]
[ is restricted to network administration purposes. For further information,  ]
[ use 'whois -h whois.nic.ad.jp help'. To only display English output,        ]
[ add '/e' at the end of command, e.g. 'whois -h whois.nic.ad.jp xxx/e'.      ]

Autonomous System Information:
a. [AS Number]                  59121
b. [AS Name]                    AKNWS-NET
g. [Organization]               Asahi Kasei Networks Corporation
m. [Administrative Contact]     YT32948JP
n. [Technical Contact]          YT32948JP
q. [Abuse]                      
o. [IMPORT]                     from AS4725 100 accept ANY
o. [IMPORT]                     from AS4713 100 accept ANY
p. [EXPORT]                     to AS4725 announce AS59121
p. [EXPORT]                     to AS4713 announce AS59121
[Assigned Date]                 2016/04/11
[Last Update]                   2016/04/11 15:11:18(JST)

Last Update: 2026-06-07T04:04:41Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
JPIRR	as-odn	1
JPIRR	as-ocn	2
NTTCOM	as-ocn	2
RADB	as-odn	1
RADB	as-ocn	2