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
	101.50.60.0/22	Kansai Broadband Corp.
	101.53.104.0/21	Kansai Broadband Corp.
	103.53.120.0/22	SYNAPSE Co.,Ltd.
	103.208.96.0/22	Kansai Broadband Corp.
	110.92.32.0/19	SYNAPSE Co.,Ltd.
	124.146.64.0/19	SYNAPSE Co.,Ltd.
	124.146.96.0/19	SYNAPSE Co.,Ltd.
	202.79.0.0/22	Kansai Broadband Corp.
	202.79.8.0/22	Kansai Broadband Corp.
	202.79.12.0/22	Kansai Broadband Corp.
	202.95.32.0/19	SYNAPSE Co.,Ltd.
	202.208.160.0/19	SYNAPSE Co.,Ltd.
	203.111.192.0/20	SYNAPSE Co.,Ltd.
	203.140.160.0/20	SYNAPSE Co.,Ltd.
	203.145.96.0/20	SYNAPSE Co.,Ltd.
	203.147.112.0/20	SYNAPSE Co.,Ltd.
	210.146.80.0/20	SYNAPSE Co.,Ltd.
	210.237.32.0/19	SYNAPSE Co.,Ltd.
	219.100.8.0/22	SYNAPSE Co.,Ltd.
	2401:c800::/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 optimistic_hopper Policy wonderful_beaver Policy infallible_babbage

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
	AS9607	BroadBand Tower, Inc.	✔	✔
	AS2518	BIGLOBE Inc.	✔	✔
	AS17676	SoftBank Corp.	✔	✔

---

Peers

	ASN	Description	IPv4	IPv6
	AS9607	BroadBand Tower, Inc.	✔	✔
	AS2518	BIGLOBE Inc.	✔	✔
	AS17676	SoftBank Corp.	✔	✔
	AS6939	Hurricane Electric LLC	✔	✘
	AS24940	Hetzner Online GmbH	✔	✔
	AS150369	TelHi Corporation	✔	✔
	AS20473	The Constant Company, LLC	✔	✔
	AS8966	Etisalat (E&)	✔	✔
	AS2635	Automattic, Inc	✔	✔
	AS20485	TransTeleCom JSC	✔	✘
	AS199524	Gcore S.A.	✔	✔
	AS4764	Aussie Broadband	✔	✘
	AS59105	Home NOC Operators Group	✔	✔
	AS216211	CYBERVERSE LLC	✔	✔
	AS9002	RETN Limited	✔	✔
	AS1828	PacketFabric / Unitas Global	✔	✔
	AS16276	OVH SAS	✔	✔
	AS9507	NextHop Pty Ltd	✔	✘
	AS200052	Feral.io Ltd	✔	✘
	AS4651	The Communications Authority of Thailand (CAT)	✔	✔
	AS63774	Kamoike.net LLP	✔	✔
	AS13335	Cloudflare, Inc.	✔	✔
	AS45430	SBN-IIG/AWN-IIG transit provider	✔	✔
	AS138997	Eons Data Communications Limited	✔	✔
	AS8849	Melbikomas UAB	✔	✔
	AS49544	i3D.net B.V	✔	✔
	AS2515	Japan Network Information Center	✔	✔
	AS30058	FDCservers.net	✔	✔
	AS2907	Science Information Network	✔	✔
	AS45701	PT Internet Madju Abad Milenindo	✔	✘
	AS43350	NForce Entertainment B.V.	✔	✘
	AS18403	FPT Telecom Company	✔	✘
	AS32590	Valve Corporation	✔	✔
	AS101	University of Washington	✔	✔
	AS24482	SG.GS	✔	✔
	AS18526	DDPS Networks, LLC	✔	✔
	AS14907	Wikimedia Foundation Inc.	✔	✔
	AS38158	PT Cyberindo Aditama	✔	✔
	AS36236	NetActuate, Inc	✔	✔
	AS153371	BACK WAVES LIMITED	✔	✘
	AS137367	PT iForte Solusi Infotek	✔	✘
	AS215724	Edgevana, Inc.	✔	✘
	AS136106	PT Mega Akses Persada	✔	✘
	AS9299	PLDT (Philippine Long Distance Telephone Company)	✔	✘
	AS55685	PT Jala Lintas Media	✔	✘
	AS60068	Datacamp Limited (CDN77 / DataPacket)	✔	✘
	AS23815	Japan Internet Xing Co., Ltd.	✔	✘
	AS58453	China Mobile International	✘	✔
	AS140627	OneQode	✔	✘
	AS138121	PT Mora Telematika Indonesia Tbk	✔	✘
	AS150363	SoftEther Corporation	✘	✔
	AS38082	True International Gateway Co., Ltd.	✘	✔
	AS9583	Sify Limited	✘	✔
	AS9304	HGC Global Communications Limited	✘	✔

[ 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]                  7511
b. [AS Name]                    SYNAPSE
g. [Organization]               SYNAPSE Co.,Ltd.
m. [Administrative Contact]     JP00146894
n. [Technical Contact]          JP00146894
q. [Abuse]                      
o. [IMPORT]                     
p. [EXPORT]                     
[Assigned Date]                 1997/05/20
[Last Update]                   2017/05/22 16:11:26(JST)

Last Update: 2026-05-06T04:11:08Z UTC

---

Member of the following AS-SETs

-	Member
RADB	as-hurricanev6
JPIRR	as-mesh-customer:as7511
JPIRR	as-mcnet
NTTCOM	as-mcnet
RADB	as7511:as-synapse-ipv6
JPIRR	as-iij
RADB	as-vectant
RADB	as-kdd
RADB	as-gctr-jp
RADB	as-odn-v6
RADB	as-iij
RADB	as-tmnet-peers
RADB	as7511:as-synapse
RADB	as-kddcustomer2
JPIRR	as-bbix-t
RADB	as-mesh-customer:as7511
RADB	as-kddi6
JPIRR	as7511:as-synapse-ipv6
RADB	as-bbix-t-v6
JPIRR	as-bbix-t-v6
RADB	as-telstra-testing-1
RADB	as-bbix-t
RADB	as-kdddmpeer
RADB	as-ipv6_vectant
JPIRR	as7511:as-synapse
RADB	as-iij6
JPIRR	as-iij6
RADB	as-telstra-intl-customers
JPIRR	as-odn-v6