View

If you are scraping this block for the prefixes that a AS originates, please use the data dumps in https://bgp.tools/kb/api and cache them

	Prefix	Description
	133.69.0.0/16	Internet Technology Research Consortium
	133.69.0.0/20	Internet Technology Research Consortium
	133.69.192.0/20	Internet Technology Research Consortium
	2407:e0c0::/32	Japan Network Information Center

---

Network Policy

Click here to learn more about what this graph means and what makes up a network policy Global Aggregation Policy nifty_mccarthy Policy recursing_chaum

Chart Display Options

Display links using non straight lines

Prefixes in selected policy

Load all prefixes in policy

---

How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS2907	Science Information Network	✔	✔

---

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]                  2523
b. [AS Name]                    ITRC-NET
g. [Organization]               Internet Technology Research Consortium
m. [Administrative Contact]     YO7514JP
n. [Technical Contact]          KO3068JP
n. [Technical Contact]          MO19130JP
q. [Abuse]                      
o. [IMPORT]                     
p. [EXPORT]                     
[Assigned Date]                 
[Last Update]                   2023/05/12 11:01:07(JST)

Last Update: 2026-06-07T03:45:16Z UTC

---

Member of the following AS-SETs

-	Member	ASN Count
LEVEL3	as-level3-origins-na	0
RADB	as2497:as-iij6	4543
JPIRR	as2907:as-sinet	150
JPIRR	as-iij	5201
JPIRR	as2497:as-iij	5197
RADB	as-2500-2914	33
RIPE	as20965:as-from-tein-to-geant	656
RADB	as-iij6	4546
RADB	as-iij	5201
JPIRR	as2497:as-iij6	4543
RADB	as2497:as-iij	5197
JPIRR	as-iij6	4546