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	Prefix	Description
	163.220.192.0/19	Industrial Cyber Security Center of Excellence
	163.220.228.0/22	Industrial Cyber Security Center of Excellence
	2401:5e40:c100::/40	Industrial Cyber Security Center of Excellence
	2401:5e40:c600::/39	Industrial Cyber Security Center of Excellence

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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	✔	✔
	AS38074	SDCC Japan-West Area	✔	✔
	AS150325	TSUKUDANI NETWORK	✔	✔
	AS150368	KLNetwork	✘	✔
	AS63799	Ghost Network	✔	✔
	AS63800	SERVER-G Group	✔	✔
	AS213471	YAMAMOTO Hiroshi	✘	✔
	AS2509	Home NOC Operators Group	✔	✔
	AS214675	Hidenori Matsuo	✘	✔
	AS63795	RoutelNet	✔	✔
	AS63797	CuteIP	✔	✔
	AS49867	Shuji Ito	✔	✔
	AS45689	Convivial Net	✔	✔
	AS152873	Neodyland	✔	✔
	AS38649	The University of Electro-Communications	✔	✘
	AS205603	Xinyu Wei	✘	✔
	AS58787	Cyber Terakoya	✔	✔

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Downstreams

	ASN	Description	IPv4	IPv6
	AS63799	Ghost Network	✔	✔
	AS213471	YAMAMOTO Hiroshi	✘	✔
	AS150368	KLNetwork	✘	✔
	AS63800	SERVER-G Group	✔	✔
	AS2509	Home NOC Operators Group	✔	✔
	AS214675	Hidenori Matsuo	✘	✔
	AS63795	RoutelNet	✔	✔
	AS150325	TSUKUDANI NETWORK	✔	✔
	AS49867	Shuji Ito	✔	✔
	AS58787	Cyber Terakoya	✔	✔
	AS38074	SDCC Japan-West Area	✔	✘
	AS63797	CuteIP	✔	✔

[ JPNIC database provides information regarding IP address and ASN. Its use   ]
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Autonomous System Information:
a. [AS Number]                  63798
b. [AS Name]                    IPA-ENTERNET
g. [Organization]               Industrial Cyber Security Center of Excellence
m. [Administrative Contact]     JP00234101
n. [Technical Contact]          JP00234101
q. [Abuse]                      enternet.asadmin1@mail1.cyber.ipa.go.jp
o. [IMPORT]                     
p. [EXPORT]                     
[Assigned Date]                 2022/12/12
[Last Update]                   2024/04/30 01:32:02(JST)

Last Update: 2025-07-09T23:45:18Z UTC / (Click here to force a refresh)

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Member of the following AS-SETs

-	Member	ASN Count
JPIRR	as-59120	22
JPIRR	as-36599	22
RADB	as-iij6	4658
RADB	as-iij	5287
JPIRR	as-iij	5287
LEVEL3	as-lumen-customers-asns	10695
JPIRR	as63798:as-enternet	22
ARIN	as1239:as-customers	4238
JPIRR	as-59103	24
JPIRR	as-63781	22
JPIRR	as-as151388	22
JPIRR	as-18127	22
RIPE	as20965:as-from-tein-to-geant	656
JPIRR	as-iij6	4658
JPIRR	as-63770	22
JPIRR	as2907:as-sinet	150
JPIRR	as-63788	22