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	Prefix	Description
	49.128.24.0/21	CTB Media Inc.
	49.128.96.0/22	CTB Media Inc.
	203.201.52.0/22	CTB Media Inc.
	211.15.112.0/20	CTB Media Inc.
	211.19.224.0/19	CTB Media Inc.
	2402:6c80::/32	CTB Media Inc.

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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.	✔	✔
	AS2519	ARTERIA Networks Corporation	✔	✔
	AS17676	SoftBank Corp.	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS2497	Internet Initiative Japan Inc.	✔	✔
	AS2519	ARTERIA Networks Corporation	✔	✔
	AS6939	Hurricane Electric LLC	✔	✘
	AS17676	SoftBank Corp.	✔	✔
	AS24940	Hetzner Online GmbH	✔	✔
	AS138997	Eons Data Communications Limited	✔	✔
	AS20473	The Constant Company, LLC	✔	✔
	AS150369	TelHi Corporation	✔	✔
	AS137409	GSL Networks Pty LTD	✔	✔
	AS49544	i3D.net B.V	✔	✔
	AS2635	Automattic, Inc	✔	✔
	AS13335	Cloudflare, Inc.	✔	✔
	AS59105	Home NOC Operators Group	✔	✘
	AS9002	RETN Limited	✔	✔
	AS199524	Gcore S.A.	✔	✔
	AS4651	The Communications Authority of Thailand (CAT)	✔	✔
	AS1828	Unitas Global	✔	✔
	AS7713	PT Telkom Indonesia Tbk	✔	✔
	AS135607	Infinivan Incorporated	✔	✔
	AS9583	Sify Limited	✔	✔
	AS43350	NForce Entertainment B.V.	✔	✘
	AS38195	Superloop	✔	✘
	AS8966	Etisalat (ETC)	✔	✘
	AS153371	BACK WAVES LIMITED	✔	✘
	AS24482	SG.GS	✔	✔
	AS14907	Wikimedia Foundation Inc.	✔	✔
	AS18526	DDPS Networks, LLC	✔	✔
	AS17639	Converge ICT Solutions Inc.	✔	✔
	AS151326	DCConnect Communication Pte. Ltd.	✔	✔
	AS134835	Starry Network Limited	✔	✘
	AS60068	Datacamp Limited (CDN77 / DataPacket)	✔	✘
	AS55818	Matrix Cable Internet Exchange	✔	✘
	AS20485	JSC TransTeleKom	✔	✘
	AS3786	LG DACOM Corporation	✔	✘
	AS15169	Google LLC	✔	✘
	AS2907	Science Information Network	✘	✔
	AS2515	Japan Network Information Center	✘	✔
	AS9507	NextHop Pty Ltd	✘	✔
	AS9304	HGC Global Communications Limited	✘	✔
	AS45430	SBN-IIG/AWN-IIG transit provider	✘	✔
	AS9886	CTCSCI TECH LIMITED	✘	✔
	AS45796	UIH / BB Connect	✘	✔

[ 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]                  23780
b. [AS Name]                    CTB
g. [Organization]               CTB Media Inc.
m. [Administrative Contact]     TN1078JP
n. [Technical Contact]          TN1078JP
q. [Abuse]                      
o. [IMPORT]                     
p. [EXPORT]                     
[Assigned Date]                 2003/08/13
[Last Update]                   2003/08/13 13:02:03(JST)

Last Update: 2024-03-07T12:03:19Z UTC / (Click here to force a refresh)

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Member of the following AS-SETs

-	Member
JPIRR	as-gigainfra-v6
JPIRR	as-gigainfra
RADB	as-iij6
RADB	as-iij
JPIRR	as-ocn
RADB	as-hurricanev6
JPIRR	as-jpirr-all
RADB	as-gigainfra
RADB	as-pacnet-customer-proxy-register
LEVEL3	as-level3-origins-na
ARIN	as-xo-b
RADB	as-ipv6_vectant
JPIRR	as-iij
RADB	as-pacnet-downstream-jp
JPIRR	as-btv
RADB	as-kddi6
RADB	as-ocn
RADB	as-kdd
JPIRR	as-iij6
RADB	as-kornetbgp
NTTCOM	as-ocn
RADB	as-vectant
JPIRR	as-23780
RADB	as-gigainfra-v6
ARIN	as1239:as-customers