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	Prefix	Description
	192.218.128.0/23	Nara Institute of Science and Technology, National Un...
	163.221.0.0/16	Nara Institute of Science and Technology, National Un...
	2001:df3:540::/48	Nara Institute of Science and Technology, National Un...

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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	✔	✔
	AS2500	WIDE Project	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS2907	Science Information Network	✔	✔
	AS2500	WIDE Project	✔	✔

[ 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]                  131158
b. [AS Name]                    NAIST-AS
g. [Organization]               Nara Institute of Science and Technology, National University Corporation
m. [Administrative Contact]     JP00065622
n. [Technical Contact]          MK20775JP
n. [Technical Contact]          YS66573JP
n. [Technical Contact]          AY25421JP
q. [Abuse]                      
o. [IMPORT]                     from AS2500 100 accept ANY
o. [IMPORT]                     from AS7674 100 accept ANY
o. [IMPORT]                     from AS2907 100 accept ANY
p. [EXPORT]                     to AS2500 announce AS131158
p. [EXPORT]                     to AS7674 announce AS131158
p. [EXPORT]                     to AS2907 announce AS131158
[Assigned Date]                 2011/05/10
[Last Update]                   2021/10/29 18:02:02(JST)

Last Update: 2025-07-09T23:56:59Z UTC / (Click here to force a refresh)

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Member of the following AS-SETs

-	Member	ASN Count
JPIRR	as-bbix-t-v6	700
RADB	as2500:as-transit	25
JPIRR	as2907:as-sinet	150
RADB	as-iij6	4740
JPIRR	as-iij	5369
RADB	as-wide	52
ARIN	as1239:as-customers	4238
RIPE	as20965:as-from-tein-to-geant	656
JPIRR	as-bbix-t	895
RADB	as-bbix-t	895
RADB	as-2500-2914	33
RADB	as-bbix-t-v6	700
RADB	as-iij	5369
JPIRR	as-iij6	4740