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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
	27.0.32.0/23	OTSUKA CORPORATION
	27.0.32.0/20	OTSUKA CORPORATION
	27.0.34.0/23	OTSUKA CORPORATION
	27.0.36.0/23	OTSUKA CORPORATION
	27.0.38.0/23	OTSUKA CORPORATION
	27.0.40.0/23	OTSUKA CORPORATION
	27.0.42.0/23	OTSUKA CORPORATION
	27.0.44.0/23	OTSUKA CORPORATION
	27.0.46.0/23	OTSUKA CORPORATION
	103.7.20.0/22	OTSUKA CORPORATION
	150.91.224.0/20	OTSUKA CORPORATION
	157.205.0.0/16	Otsuka Corporation
	157.205.4.0/23	Otsuka Corporation
	157.205.6.0/23	Otsuka Corporation
	157.205.10.0/23	Otsuka Corporation
	157.205.12.0/23	Otsuka Corporation
	157.205.14.0/23	Otsuka Corporation
	157.205.16.0/23	Otsuka Corporation
	157.205.18.0/23	Otsuka Corporation
	157.205.20.0/23	Otsuka Corporation
	157.205.22.0/23	Otsuka Corporation
	157.205.24.0/23	Otsuka Corporation
	157.205.26.0/23	Otsuka Corporation
	157.205.28.0/23	Otsuka Corporation
	157.205.30.0/23	Otsuka Corporation
	157.205.32.0/23	Otsuka Corporation
	157.205.34.0/23	Otsuka Corporation
	157.205.36.0/23	Otsuka Corporation
	157.205.38.0/23	Otsuka Corporation
	157.205.40.0/23	Otsuka Corporation
	157.205.42.0/23	Otsuka Corporation
	157.205.44.0/23	Otsuka Corporation
	157.205.46.0/23	Otsuka Corporation
	157.205.58.0/23	Otsuka Corporation
	157.205.60.0/23	Otsuka Corporation
	157.205.62.0/23	Otsuka Corporation
	157.205.74.0/23	Otsuka Corporation
	157.205.126.0/23	Otsuka Corporation
	157.205.170.0/23	Otsuka Corporation
	157.205.172.0/23	Otsuka Corporation
	157.205.174.0/23	Otsuka Corporation
	157.205.176.0/23	Otsuka Corporation
	157.205.178.0/23	Otsuka Corporation
	157.205.180.0/23	Otsuka Corporation
	157.205.182.0/23	Otsuka Corporation
	157.205.184.0/23	Otsuka Corporation
	157.205.186.0/23	Otsuka Corporation
	157.205.188.0/23	Otsuka Corporation
	157.205.190.0/23	Otsuka Corporation
	157.205.192.0/23	Otsuka Corporation
	157.205.194.0/23	Otsuka Corporation
	157.205.196.0/23	Otsuka Corporation
	157.205.198.0/23	Otsuka Corporation
	157.205.208.0/23	Otsuka Corporation
	157.205.210.0/23	Otsuka Corporation
	157.205.212.0/23	Otsuka Corporation
	157.205.220.0/23	Otsuka Corporation
	182.93.96.0/19	OTSUKA CORPORATION
	182.93.112.0/23	OTSUKA CORPORATION
	182.93.114.0/23	OTSUKA CORPORATION
	182.93.116.0/23	OTSUKA CORPORATION
	182.93.118.0/23	OTSUKA CORPORATION
	182.93.120.0/23	OTSUKA CORPORATION
	182.93.122.0/23	OTSUKA CORPORATION
	182.93.124.0/23	OTSUKA CORPORATION
	182.93.126.0/23	OTSUKA CORPORATION
	202.47.136.0/22	OTSUKA CORPORATION
	2403:6c00::/32	Japan Network Information Center

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS2497	Internet Initiative Japan Inc.	✔	✘
	AS2516	KDDI Corporation	✔	✔
	AS17676	SoftBank Corp.	✔	✔
	AS4713	NTT Communications Corporation (OCN)	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS2497	Internet Initiative Japan Inc.	✔	✘
	AS2516	KDDI Corporation	✔	✔
	AS17676	SoftBank Corp.	✔	✔
	AS6939	Hurricane Electric LLC	✔	✘
	AS4713	NTT Communications Corporation (OCN)	✔	✔
	AS150369	TelHi Corporation	✔	✔
	AS20473	The Constant Company, LLC	✔	✔
	AS8220	COLT	✔	✔
	AS59105	Home NOC Operators Group	✔	✔
	AS9002	RETN Limited	✔	✔
	AS216211	CYBERVERSE LLC	✔	✔
	AS199524	Gcore S.A.	✔	✔
	AS1828	Unitas Global	✔	✔
	AS2635	Automattic, Inc	✔	✔
	AS9507	NextHop Pty Ltd	✔	✘
	AS63774	Kamoike.net LLP	✔	✔
	AS4651	The Communications Authority of Thailand (CAT)	✔	✘
	AS138997	Eons Data Communications Limited	✔	✔
	AS2907	Science Information Network	✔	✔
	AS49544	i3D.net B.V	✔	✔
	AS8849	Melbikomas UAB	✔	✔
	AS2515	Japan Network Information Center	✔	✔
	AS45701	PT Internet Madju Abad Milenindo	✔	✘
	AS58453	China Mobile International	✘	✔
	AS101	University of Washington	✔	✔
	AS38158	PT Cyberindo Aditama	✔	✔
	AS32590	Valve Corporation	✔	✔
	AS36236	NetActuate, Inc	✔	✔
	AS24482	SG.GS	✔	✔
	AS60068	Datacamp Limited (CDN77 / DataPacket)	✔	✘
	AS55685	PT Jala Lintas Media	✔	✘
	AS23815	Japan Internet Xing Co., Ltd.	✔	✘
	AS138121	PT Mora Telematika Indonesia Tbk	✔	✘
	AS137367	PT iForte Solusi Infotek	✔	✘
	AS9299	PLDT (Philippine Long Distance Telephone Company)	✔	✘
	AS134835	Starry Network Limited	✘	✔
	AS20326	TeraSwitch Networks Inc.	✘	✔

[ 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]                  17514
b. [AS Name]                    AICS
g. [Organization]               Otsuka Corp.
m. [Administrative Contact]     JP00038278
n. [Technical Contact]          JP00038278
q. [Abuse]                      
o. [IMPORT]                     from AS2497 100 accept ANY
o. [IMPORT]                     from AS2516 100 accept ANY
o. [IMPORT]                     from AS4713 100 accept ANY
p. [EXPORT]                     to AS2497 announce AS17514
p. [EXPORT]                     to AS2516 announce AS17514
p. [EXPORT]                     to AS4713 announce AS17514
[Assigned Date]                 2001/02/21
[Last Update]                   2012/04/03 13:59:03(JST)

Last Update: 2025-07-26T23:29:11Z 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	706
LEVEL3	as-level3-origins-na	0
RADB	as-bbix-t	898
NTTCOM	as-ocn-v6	203
RADB	as-kdd	1157
NTTCOM	as-ocn	2
RADB	as-hurricanev6	20659
RADB	as-kddi6	833
RADB	as-iij	5284
JPIRR	as-bbix-t	898
ARIN	as1239:as-customers	4238
JPIRR	as-aics	1
JPIRR	as-iij	5284
JPIRR	as-ocn	2
RADB	as-ocn	2
RADB	as-bbix-t-v6	706
RADB	as-iij6	4655
JPIRR	as-ocn-v6	203
JPIRR	as-iij6	4655
RADB	as-ocn-v6	203