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	Prefix	Description
	126.251.112.0/21	SoftBank Corp.
	202.223.12.0/22	Joetsu Cable Vision Co.,Ltd.
	202.223.12.0/23	Joetsu Cable Vision Co.,Ltd.
	202.223.14.0/23	Joetsu Cable Vision Co.,Ltd.
	103.118.92.0/22	Joetsu Cable Vision Co.,Ltd.
	103.118.92.0/23	Joetsu Cable Vision Co.,Ltd.
	103.118.93.0/24	Joetsu Cable Vision Co.,Ltd.
	103.118.94.0/23	Joetsu Cable Vision Co.,Ltd.
	103.152.66.0/24	JMiX Co., Ltd.
	103.152.67.0/24	JMiX Co., Ltd.
	126.251.0.0/20	Joetsu Cable Vision Co.,Ltd.
	126.251.0.0/19	Joetsu Cable Vision Co.,Ltd.
	126.251.16.0/20	Joetsu Cable Vision Co.,Ltd.
	126.251.32.0/22	Joetsu Cable Vision Co.,Ltd.
	126.251.32.0/21	Joetsu Cable Vision Co.,Ltd.
	126.251.36.0/22	Joetsu Cable Vision Co.,Ltd.
	126.251.112.0/22	SoftBank Corp.
	126.251.116.0/22	SoftBank Corp.
	170.249.64.0/21	Joetsu Cable Vision Co.,Ltd.
	170.249.64.0/22	Joetsu Cable Vision Co.,Ltd.
	170.249.68.0/22	Joetsu Cable Vision Co.,Ltd.
	170.249.96.0/20	Joetsu Cable Vision Co.,Ltd.
	170.249.96.0/19	Joetsu Cable Vision Co.,Ltd.
	170.249.112.0/20	Joetsu Cable Vision Co.,Ltd.
	2403:4040::/48	Joetsu Cable Vision Co.,Ltd.
	2403:4040::/32	Joetsu Cable Vision Co.,Ltd.
	2403:4040:1::/48	Joetsu Cable Vision Co.,Ltd.
	2403:4040:2::/48	Joetsu Cable Vision Co.,Ltd.
	2406:2b40::/32	JMiX Co., Ltd.

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS17676	SoftBank Corp.	✔	✔
	AS2497	Internet Initiative Japan Inc.	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS17676	SoftBank Corp.	✔	✔
	AS2497	Internet Initiative Japan Inc.	✔	✔
	AS6939	Hurricane Electric LLC	✔	✔
	AS150369	TelHi Corporation	✔	✔
	AS20473	The Constant Company, LLC	✔	✔
	AS9002	RETN Limited	✔	✔
	AS24482	SG.GS	✔	✔
	AS59105	Home NOC Operators Group	✔	✔
	AS4651	The Communications Authority of Thailand (CAT)	✔	✔
	AS2635	Automattic, Inc	✔	✔
	AS138997	Eons Data Communications Limited	✔	✔
	AS49544	i3D.net B.V	✔	✔
	AS1828	Unitas Global	✔	✔
	AS15169	Google LLC	✔	✔
	AS9371	SAKURA Internet Inc.	✔	✔
	AS153371	BACK WAVES LIMITED	✔	✔
	AS9370	SAKURA Internet Inc.	✔	✔
	AS135607	Infinivan Incorporated	✔	✔
	AS35280	F5 Networks SARL	✔	✘
	AS38195	Superloop	✔	✔
	AS2515	Japan Network Information Center	✔	✔
	AS8966	Etisalat (ETC)	✔	✘
	AS149513	SyCloud	✔	✔
	AS9304	HGC Global Communications Limited	✔	✘
	AS13335	Cloudflare, Inc.	✔	✔
	AS140627	OneQode	✔	✘
	AS9505	Taiwan Internet Gateway	✔	✔
	AS7713	PT Telkom Indonesia Tbk	✘	✔
	AS17639	Converge ICT Solutions Inc.	✔	✔
	AS18526	DDPS Networks, LLC	✔	✔
	AS134835	Starry Network Limited	✔	✔
	AS20485	JSC TransTeleKom	✔	✘
	AS9299	PLDT (Philippine Long Distance Telephone Company)	✔	✔
	AS17686	ACCELIA	✔	✔
	AS63802	Nippon Telegraph and Telephone East Corporation	✔	✘
	AS2907	Science Information Network	✘	✔
	AS9886	CTCSCI TECH LIMITED	✘	✔

[ 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]                  131937
b. [AS Name]                    JCV
g. [Organization]               Joetsu Cable Vision
m. [Administrative Contact]     JP00164408
n. [Technical Contact]          JP00164408
q. [Abuse]                      
o. [IMPORT]                     from AS23640 100 accept ANY
o. [IMPORT]                     from AS17676 100 accept ANY
p. [EXPORT]                     to AS23640 announce AS131937
p. [EXPORT]                     to AS17676 announce AS131937
[Assigned Date]                 2018/07/25
[Last Update]                   2018/07/25 13:59:26(JST)

Last Update: 2024-05-05T22:02:23Z UTC / (Click here to force a refresh)

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as-gigainfra	1216
JPIRR	as-iij	5013
JPIRR	as-gigainfra-v6	777
RADB	as-iij	5013
JPIRR	as-jpirr-all	398
ARIN	as1239:as-customers	4238
RADB	as-gigainfra-v6	777
JPIRR	as-iij6	4393
JPIRR	as-gigainfra	1216
RADB	as-iij6	4393
JPIRR	as-jcv	1