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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
	219.100.76.0/22	FAMILYNET JAPAN CORPORATION
	150.91.192.0/20	FAMILYNET JAPAN CORPORATION
	160.237.96.0/19	FAMILYNET JAPAN CORPORATION
	160.237.126.0/23	FAMILYNET JAPAN CORPORATION
	160.237.160.0/20	FAMILYNET JAPAN CORPORATION
	160.237.176.0/21	FAMILYNET JAPAN CORPORATION
	160.237.184.0/22	FAMILYNET JAPAN CORPORATION
	160.237.188.0/23	FAMILYNET JAPAN CORPORATION
	160.237.190.0/24	FAMILYNET JAPAN CORPORATION
	2401:4d44::/30	FAMILYNET JAPAN CORPORATION
	2406:1940::/32	Japan Network Infomation Center
	2406:1940::/33	FAMILYNET JAPAN CORPORATION
	2406:1940:8000::/33	FAMILYNET JAPAN CORPORATION

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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.	✔	✔
	AS17676	SoftBank Corp.	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS2497	Internet Initiative Japan Inc.	✔	✔
	AS6939	Hurricane Electric LLC	✔	✔
	AS17676	SoftBank Corp.	✔	✔
	AS150369	TelHi Corporation	✔	✔
	AS59105	Home NOC Operators Group	✔	✔
	AS2635	Automattic, Inc	✔	✔
	AS199524	Gcore S.A.	✔	✔
	AS2907	Science Information Network	✔	✘
	AS1828	PacketFabric / Unitas Global	✘	✔

[ 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]                  131925
b. [AS Name]                    CYBERHOME2
g. [Organization]               FAMILY NET JAPAN INCORPORATED
m. [Administrative Contact]     AN31070JP
n. [Technical Contact]          HH48526JP
n. [Technical Contact]          TT78011JP
q. [Abuse]                      abuse@cyberhome.jp
o. [IMPORT]                     from AS2497 100 accept ANY
o. [IMPORT]                     from AS17676 100 accept ANY
o. [IMPORT]                     from AS9607 100 accept ANY
p. [EXPORT]                     to AS2497 announce AS131925
p. [EXPORT]                     to AS17676 announce AS131925
p. [EXPORT]                     to AS9607 announce AS131925
[Assigned Date]                 2017/11/10
[Last Update]                   2026/01/29 09:01:04(JST)

Last Update: 2026-06-06T03:39:56Z UTC

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Member of the following AS-SETs

-	Member
RADB	as-kddcustomer2
JPIRR	as-bbix-t
RADB	as2497:as-iij6
JPIRR	as-iij
RADB	as-iij6
JPIRR	as-cyberhome
RADB	as2497:as-iij
JPIRR	as2497:as-iij6
RADB	as-kddi6
RADB	as-bbix-t-v6
JPIRR	as2497:as-iij
JPIRR	as-bbix-t-v6
JPIRR	as-mcnet
APNIC	as132215:as-powergrid
RADB	as-reliance
JPIRR	as-iij6
RADB	as-vodafone-net-in
NTTCOM	as-mcnet
RADB	as-iij
JPIRR	as-cyberhome2
RADB	as-kdd
RADB	as-bbix-t