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	Prefix	Description
	118.238.128.0/18	USEN CORPORATION
	125.63.32.0/20	USEN CORPORATION
	2400:f400::/32	Japan Network Information Center

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS2519	ARTERIA Networks Corporation	✔	✔
	AS2527	Sony Network Communications Inc.	✔	✔
	AS6939	Hurricane Electric LLC	✘	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS6939	Hurricane Electric LLC	✔	✔
	AS2527	Sony Network Communications Inc.	✔	✔
	AS2519	ARTERIA Networks Corporation	✔	✔
	AS137409	GSL Networks Pty LTD	✔	✘
	AS20473	The Constant Company, LLC	✔	✔
	AS8220	COLT	✔	✔
	AS59105	Home NOC Operators Group	✔	✘
	AS1828	Unitas Global	✔	✔
	AS2907	Science Information Network	✔	✔
	AS49544	i3D.net B.V	✔	✔
	AS2515	Japan Network Information Center	✔	✔
	AS8849	Melbikomas UAB	✔	✘
	AS2635	Automattic, Inc	✔	✘
	AS45701	PT Internet Madju Abad Milenindo	✔	✘
	AS36236	NetActuate, Inc	✔	✔
	AS32590	Valve Corporation	✔	✔
	AS138121	PT Mora Telematika Indonesia Tbk	✔	✘
	AS137367	PT iForte Solusi Infotek	✔	✘
	AS38001	NewMedia Express Pte. Ltd.	✔	✘
	AS3786	LG DACOM Corporation	✔	✘
	AS101	University of Washington	✔	✘
	AS24482	SG.GS	✔	✘
	AS55818	Matrix Cable Internet Exchange	✔	✘

[ 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]                  24278
b. [AS Name]                    USEN-NET
g. [Organization]               USEN CORPORATION
m. [Administrative Contact]     JP00031240
n. [Technical Contact]          JP00031240
q. [Abuse]                      
o. [IMPORT]                     
p. [EXPORT]                     
[Assigned Date]                 2005/09/21
[Last Update]                   2014/12/03 17:23:06(JST)

Last Update: 2025-12-14T22:56:30Z UTC / (Click here to force a refresh)

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Member of the following AS-SETs

-	Member
RIPE	as3303:as-swcmpeers
NTTCOM	as-so-net6
JPIRR	as-ocn
JPIRR	as-iij6
RADB	as-anc-customer-proxy-register
JPIRR	as-infosphere-v6
LEVEL3	as-level3-origins-na
APNIC	as23855:as-com-via-ix
RADB	as-iij6
RADB	as-so-net
NTTCOM	as-infosphere
RADB	as-iij
JPIRR	as-iij
RADB	as-ocn
RADB	as-vectant
RADB	as-hurricanev6
RADB	as-telstra-intl-customers
RADB	as-kdd
RADB	as-telstra-testing-1
RADB	as-usen-net
NTTCOM	as-ocn
RADB	as3491:as-customers-ap
RADB	as-ipv6_vectant
ARIN	as1239:as-customers
NTTCOM	as-infosphere-v6
APNIC	as-63529-as-import-as9505
RADB	as-so-net6
JPIRR	as-so-net
JPIRR	as-infosphere
RADB	as-kddi6
JPIRR	as-so-net6
JPIRR	as-usen-net
NTTCOM	as-so-net