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	Prefix	Description
	160.26.0.0/16	National University Corporation, Toyama University
	202.240.244.0/22	National University Corporation, University of Toyama
	202.251.144.0/20	National University Corporation, University of Toyama
	202.254.200.0/21	National University Corporation, University of Toyama

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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	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	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]                  23781
b. [AS Name]                    Toyama-AN-AS
g. [Organization]               Toyama University
m. [Administrative Contact]     NN1617JP
n. [Technical Contact]          NN1617JP
n. [Technical Contact]          KO5433JP
q. [Abuse]                      
o. [IMPORT]                     from AS2907 100 accept ANY
o. [IMPORT]                     from AS9612 100 accept ANY
p. [EXPORT]                     to AS2907 announce AS23781
p. [EXPORT]                     to AS9612 announce AS23781
[Assigned Date]                 2003/08/27
[Last Update]                   2011/03/09 19:44:04(JST)

Last Update: 2025-07-09T23:51:01Z UTC / (Click here to force a refresh)

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Member of the following AS-SETs

-	Member	ASN Count
RIPE	as20965:as-from-tein-to-geant	654
LEVEL3	as-level3-origins-na	0
JPIRR	as-iij6	4106
RADB	as-iij6	4106
RADB	as-iij	4734
JPIRR	as2907:as-sinet	150
RADB	as-wide	52
ARIN	as1239:as-customers	4238
JPIRR	as-iij	4734