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	Prefix	Description
	133.79.0.0/16	Toyo University
	133.79.192.0/20	Toyo University

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS2907	Science Information Network	✔	✘
	AS2519	ARTERIA Networks Corporation	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS2519	ARTERIA Networks Corporation	✔	✘
	AS2907	Science Information Network	✔	✔

[ 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]                  18087
b. [AS Name]                    TOYO
g. [Organization]               Toyo University
m. [Administrative Contact]     MT1711JP
n. [Technical Contact]          MT1711JP
n. [Technical Contact]          HS763JP
n. [Technical Contact]          YF433JP
q. [Abuse]                      
o. [IMPORT]                     from AS2907 100 accept ANY
o. [IMPORT]                     from AS2519 100 accept ANY
p. [EXPORT]                     to AS2907 announce AS18087
p. [EXPORT]                     to AS2519 announce AS18087
[Assigned Date]                 2002/03/06
[Last Update]                   2017/02/16 12:23:03(JST)

Last Update: 2026-05-09T04:05:25Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as-iij6	4521
JPIRR	as-iij6	4521
RADB	as-ocn	2
LEVEL3	as-level3-origins-na	0
JPIRR	as2907:as-sinet	150
RADB	as-iij	5174
RADB	as-kdd	1153
RADB	as-wide	52
JPIRR	as2497:as-iij6	4520
JPIRR	as-iij	5174
JPIRR	as-ocn	2
JPIRR	as2497:as-iij	5173
RADB	as-vectant	227
NTTCOM	as-ocn	2
RIPE	as20965:as-from-tein-to-geant	656
RADB	as2497:as-iij6	4520
RADB	as-telstra-intl-customers	12358
RADB	as-kddcustomer2	8206
RADB	as2497:as-iij	5173