日本

按 RIR 注册登记在日本的 ASN，IPv4 地址数量全球第 3 位。

ASN: 1,306; 占全球 1.0%
有路由的 ASN: 744; 占本国 57.0%
IPv4 地址: 1.62 亿; 占全球 4.7%
IPv6 /48: 5.13 亿; 占全球 4.2%

路由数据 · 2026.10.19 16:21 UTC

网络类型构成按 ASN 数量

日本的 ASN 排行

排名	ASN	名称	类型	IPv4 地址	IPv6 /48	前缀
1	AS17676	SoftBank Corp.	骨干网络	38,445,056	285,278,208	486
2	AS4713	NTT Communications Corporation (OCN)	骨干网络	28,624,640	67,239,937	188
3	AS2516	KDDI	骨干网络	18,072,832	42,139,649	570
4	AS2907	National Institute of Informatics	教育科研	8,820,224	131,072	607
5	AS17506	ARTERIA Networks Corporation (UCOM)	骨干网络	5,382,144	65,536	41
6	AS9824	JCOM	接入运营商	4,745,216	589,824	295
7	AS2497	Internet Initiative Japan	骨干网络	4,094,976	270,341	261
8	AS2527	Sony Network Communications	骨干网络	3,867,648	2,162,688	76
9	AS2518	BIGLOBE (AS2518)	骨干网络	3,670,016	589,824	35
10	AS17511	OPTAGE	接入运营商	2,994,432	65,536	68
11	AS9605	NTT DOCOMO	接入运营商	2,536,448	120,737	1,187
12	AS2514	NTT PC Communications (InfoSphere)	骨干网络	2,078,976	196,608	472
13	AS10013	FreeBit Co,Ltd.	骨干网络	1,944,064	131,072	410
14	AS4725	Softbank Corp. (former Japan Telecom)	骨干网络	1,929,472	65,536	137
15	AS2510	Fujitsu Limited	骨干网络	1,591,296	65,536	61
16	AS9595	NTT-ME (XePhion,WAKWAK)	骨干网络	1,513,472	67,305,472	49
17	AS18126	Chubu Telecommunications Co.,Inc. (ctc)	接入运营商	1,505,536	131,072	65
18	AS10010	TOKAI Communications Corporation	接入运营商	1,502,720	688,128	193
19	AS2519	ARTERIA Networks Corporation (Vectant)	骨干网络	1,464,832	1,572,864	184
20	AS4685	ASAHI Net	接入运营商	1,277,952	589,824	64
21	AS9617	JCOM Co., Ltd.	尚未分类	1,163,264	65,536	118
22	AS4694	IDC Frontier Inc.	内容网络	1,048,064	262,144	334
23	AS7679	QTnet	接入运营商	760,832	65,536	37
24	AS4721	JCOM Co., Ltd.	尚未分类	631,808	65,536	163
25	AS7522	STNet, Incorporated	骨干网络	594,944	65,536	55
26	AS7671	NTT SmartConnect	内容网络	453,888	327,680	63
27	AS18081	Kintetsu Cable Network Co.	接入运营商	442,368	65,536	39
28	AS138384	Rakuten Mobile	接入运营商	420,864	16,777,216	32
29	AS9365	its communications inc	接入运营商	404,480	65,536	15
30	AS18071	Panasonic Information Systems Co., Ltd	尚未分类	383,232	0	50
31	AS7684	SAKURA-A	IDC / 主机托管	368,640	65,536	52
32	AS7524	iTEC Hankyu Hanshin Co.,Ltd	接入运营商	366,336	65,536	140
33	AS9370	SAKURA internet AS9370	内容网络	340,992	1,048,576	44
34	AS131932	JR East Information Systems Company	尚未分类	327,680	0	71
35	AS9371	SAKURA internet AS9371	内容网络	306,432	65,536	23
36	AS18144	Enecom,Inc.	尚未分类	291,840	524,288	23
37	AS9597	KDDI Web Communications	内容网络	276,736	65,536	27
38	AS7506	GMO Internet, Inc.	内容网络	252,928	4,101	104
39	AS9351	ZTV	接入运营商	249,856	65,536	31
40	AS4673	INTERVIA	接入运营商	241,664	65,536	28
41	AS2522	Japan Network Information Center	尚未分类	229,120	0	15
42	AS2506	NTT WEST CHUGOKU CORPORATION	尚未分类	214,272	65,536	16
43	AS7687	TOYOTA SYSTEMS CORPORATION	骨干网络	200,960	0	211
44	AS2501	UTnet	尚未分类	200,704	65,536	6
45	AS9619	Sony Global Solutions Inc.	尚未分类	200,704	65,536	13
46	AS4686	Bekkoame Internet Inc.	尚未分类	200,448	65,536	66
47	AS9354	Community Network Center Inc. (CNCI)	接入运营商	200,448	65,536	38
48	AS23793	National Institute of Advanced Industrial Science and Technology	尚未分类	199,936	0	16
49	AS7514	MEX	IDC / 主机托管	192,000	65,536	23
50	AS17698	COMMUNITY NETWORK CENTER INCORPORATED.	尚未分类	174,080	0	37