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	Prefix	Description
	61.213.48.0/20	SCSK Corporation
	110.50.24.0/21	SCSK Corporation

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS4693	CSK-IT MANAGEMENT CORPORATION	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS4693	CSK-IT MANAGEMENT CORPORATION	✔	✘

[ 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]                  17680
b. [AS Name]                    SCS
g. [Organization]               SCSK Corporation
m. [Administrative Contact]     KY10234JP
n. [Technical Contact]          OY1966JP
n. [Technical Contact]          MO10782JP
q. [Abuse]                      
o. [IMPORT]                     
p. [EXPORT]                     
[Assigned Date]                 2001/05/23
[Last Update]                   2012/04/11 17:34:15(JST)

Last Update: 2025-12-14T23:05:17Z UTC / (Click here to force a refresh)

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Member of the following AS-SETs

-	Member
JPIRR	as-ocn-v6
RADB	as-gigainfra
RADB	as-telstra-intl-customers-4637
RADB	as-telstra-testing-1
JPIRR	as-accelia
RADB	as-ipv6_vectant
LEVEL3	as-sprint-origins
JPIRR	as-pwd
JPIRR	as-infosphere-v6
RADB	as-iij6
NTTCOM	as-infosphere-v6
JPIRR	as-infosphere
RADB	as-pacnet-downstream-jp
JPIRR	as-ocn
RADB	as-kddcustomer2
ARIN	as1239:as-customers
JPIRR	as-gigainfra
RADB	as-kdd
RADB	as-pwd
NTTCOM	as-ocn
RADB	as-vectant
NTTCOM	as-ocn-v6
RADB	as-accelia
RADB	as-iij
JPIRR	as-iij6
JPIRR	as-iij
RADB	as-telstra-intl-customers
RADB	as3491:as-customers-ap
RADB	as-ocn-v6
NTTCOM	as-infosphere
RADB	as-kddi6
RADB	as-ocn