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	Prefix	Description
	38.106.60.0/24	Cogent Communications, LLC
	103.91.184.0/24	TOSHIBA I.S. corporation
	103.147.244.0/24	TOSHIBA I.S. corporation
	154.18.65.0/24	Cogent Communications, LLC
	154.18.67.0/24	Cogent Communications, LLC

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS2516	KDDI Corporation	✔	✘
	AS174	Cogent Communications, LLC	✔	✘
	AS3356	Lumen (Level 3)	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS2516	KDDI Corporation	✔	✘
	AS174	Cogent Communications, LLC	✔	✘
	AS3356	Lumen (Level 3)	✔	✘
	AS1239	Sprint Wireline (Cogent)	✔	✘

[ 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]                  131917
b. [AS Name]                    TOSHIBA-IS
g. [Organization]               Toshiba I.S. corp
m. [Administrative Contact]     KN64281JP
n. [Technical Contact]          KN64281JP
q. [Abuse]                      
o. [IMPORT]                     
p. [EXPORT]                     
[Assigned Date]                 2017/05/09
[Last Update]                   2022/01/31 14:11:02(JST)

Last Update: 2026-06-04T03:52:05Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
JPIRR	as-ocn	2
RADB	as-kdd	1153
LEVEL3	as-lumen-customers-asns	10695
RADB	as-ocn	2
NTTCOM	as-ocn	2
JPIRR	as-toshiba-is	1