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Organization

Internet Initiative Japan Inc.

IPv4 addresses
3,913,472
CIDR ranges
164
Category
isp
BGP prefixes announced
197

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

70/100
Moderate
How this score is built
  • Baseline (neutral) 65
  • Isp allocation +5
  • Trust score 70 / 100

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

About Internet Initiative Japan

Internet Initiative Japan, Inc. (インターネットイニシアティブ) is a Japanese telecommunications company.

Founded
1992
Headquarters
Tokyo

Operates 1 network present at 15 internet exchanges with a restrictive peering policy.

Internet Initiative Japan Inc. — global IP footprint

Cities where Internet Initiative Japan Inc. has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

Countries served by Internet Initiative Japan Inc.

Every country where this organization has IPv4 allocations, ranked by IPs held.

ASNs owned by Internet Initiative Japan Inc.

ASNNameIPsPrefixesCountry
AS2497 Internet Initiative Japan Inc. 3.92M 171 JP
AS9434 Internet Initiative Japan, Inc. 256 1 EE

Largest CIDR ranges

CIDRIPsPTR DensityASNCountryStateCity
133.110.0.0/15 131.1K
45.1%
AS2497 JP Fukuoka Shiragane
172.122.0.0/15 131.1K
98.5%
AS2497 JP Kanagawa Yokohama
121.102.0.0/16 65.5K
90.1%
AS2497 JP Tokyo Tokyo
125.30.0.0/16 65.5K
86.0%
AS2497 JP Tokyo Tokyo
129.249.0.0/16 65.5K
0.0%
AS2497 JP
131.248.0.0/16 65.5K
0.0%
AS2497 JP
132.179.0.0/16 65.5K
0.2%
AS2497 JP
133.127.0.0/16 65.5K
85.5%
AS2497 JP Tokyo Matsubara
133.137.0.0/16 65.5K
35.7%
AS2497 JP
133.142.0.0/16 65.5K
79.9%
AS2497 JP Shizuoka Shizuoka
133.159.0.0/16 65.5K
89.3%
AS2497 JP Aichi Toyota
133.173.0.0/16 65.5K
0.3%
AS2497 JP
133.215.0.0/16 65.5K
0.0%
AS2497 JP
133.218.0.0/16 65.5K
71.9%
AS2497 JP Saitama Motobuto
133.221.0.0/16 65.5K
0.0%
AS2497 JP Tokyo Tokyo
133.236.0.0/16 65.5K
49.2%
AS2497 JP Fukuoka Muromi
133.245.0.0/16 65.5K
0.0%
AS2497 JP
133.254.0.0/16 65.5K
0.1%
AS2497 JP Shizuoka Shizuoka
134.237.0.0/16 65.5K
0.0%
AS2497 JP
138.107.0.0/16 65.5K
0.0%
AS2497 JP
139.152.0.0/16 65.5K
0.2%
AS2497 JP
143.94.0.0/16 65.5K
0.0%
AS2497 JP
150.23.0.0/16 65.5K
0.0%
AS2497 JP
150.31.0.0/16 65.5K
79.7%
AS2497 JP Tokyo Tokyo
150.87.0.0/16 65.5K
0.0%
AS2497 JP
150.90.0.0/16 65.5K
0.7%
AS2497 JP Saitama Fujimino-shi
157.67.0.0/16 65.5K
92.2%
AS2497 JP Tokyo Nishiogikita
160.13.0.0/16 65.5K
66.3%
AS2497 JP Tokyo Tokyo
160.17.0.0/16 65.5K
4.3%
AS2497 JP
163.49.0.0/16 65.5K
73.2%
AS2497 JP Tokyo Tokyo
163.55.0.0/16 65.5K
0.0%
AS2497 JP
163.140.0.0/16 65.5K
95.9%
AS2497 JP Fukuoka Kasuga
163.218.0.0/16 65.5K
98.6%
AS2497 JP Kanagawa Miyazaki
167.169.0.0/16 65.5K
0.0%
AS2497 JP Saitama Miyaharachō
202.32.0.0/16 65.5K
37.7%
AS2497 JP Tokyo Shinjuku
202.214.0.0/16 65.5K
34.8%
AS2497 JP Chiba Kashiwa
202.221.0.0/16 65.5K
23.9%
AS2497 JP Aichi Toyohashi
202.232.0.0/16 65.5K
36.2%
AS2497 JP Kanagawa Tsuzuki Ku
203.180.0.0/16 65.5K
57.9%
AS2497 JP Tokyo Hino
210.128.0.0/16 65.5K
46.4%
AS2497 JP Osaka Chūō Ku
210.138.0.0/16 65.5K
54.8%
AS2497 JP Kagawa Takamatsu
210.149.0.0/16 65.5K
68.1%
AS2497 JP Mie Yokkaichi
219.119.0.0/16 65.5K
98.2%
AS2497 JP
58.138.0.0/17 32.8K
57.5%
AS2497 JP Saitama Negishi
101.128.128.0/17 32.8K
97.5%
AS2497 JP Yamagata Nakazato
113.197.128.0/17 32.8K
99.2%
AS2497 JP Osaka Osaka
118.151.0.0/17 32.8K
99.2%
AS2497 JP Tokyo Machida
124.41.0.0/17 32.8K
99.3%
AS2497 JP Kanagawa Okazaki
133.159.128.0/17 32.8K
0.0%
AS2497 JP Nagasaki Nagasaki
133.194.0.0/17 32.8K
0.0%
AS2497 JP
133.238.128.0/17 32.8K
78.8%
AS2497 JP Tokyo Tokyo
143.125.0.0/17 32.8K
0.0%
AS2497 JP
202.32.0.0/17 32.8K
0.0%
AS2497 JP Tokyo Shibuya City
202.232.128.0/17 32.8K
0.0%
AS2497 JP Shizuoka Hamamatsu
202.238.128.0/17 32.8K
34.4%
AS2497 JP Saitama Ōze
210.128.0.0/17 32.8K
0.0%
AS2497 JP Osaka Chūō Ku
210.130.0.0/17 32.8K
86.0%
AS2497 JP Kanagawa Honchō
210.148.0.0/17 32.8K
40.0%
AS2497 JP Yamagata Sakata
219.111.0.0/17 32.8K
96.5%
AS2497 JP Saitama Nishimachi
219.126.128.0/17 32.8K
79.3%
AS2497 JP Gunma Takasaki
220.100.0.0/17 32.8K
96.2%
AS2497 JP Tokyo Tokyo
220.156.0.0/17 32.8K
46.0%
AS2497 JP
49.239.64.0/18 16.4K
96.6%
AS2497 JP
58.138.0.0/18 16.4K
0.0%
AS2497 JP Saitama Negishi
58.138.128.0/18 16.4K
31.8%
AS2497 JP Tokyo Tokyo
118.151.128.0/18 16.4K
73.6%
AS2497 JP Tokyo Tokyo
119.10.192.0/18 16.4K
87.3%
AS2497 JP Aichi Nagoya
124.41.128.0/18 16.4K
99.7%
AS2497 JP
124.147.64.0/18 16.4K
98.9%
AS2497 JP
133.159.0.0/18 16.4K
0.0%
AS2497 JP Aichi Toyota
133.194.128.0/18 16.4K
0.0%
AS2497 JP
143.125.128.0/18 16.4K
0.0%
AS2497 JP
202.32.128.0/18 16.4K
0.0%
AS2497 JP Tokyo Tokyo
202.224.128.0/18 16.4K
0.2%
AS2497 JP
202.232.64.0/18 16.4K
0.0%
AS2497 JP Kanagawa Tsuzuki Ku
203.180.64.0/18 16.4K
0.0%
AS2497 JP Chiba Chiba
203.180.128.0/18 16.4K
0.0%
AS2497 JP Tokyo Tōyō
210.130.64.0/18 16.4K
0.0%
AS2497 JP
210.130.128.0/18 16.4K
26.8%
AS2497 JP Tokyo Shibuya City
210.133.192.0/18 16.4K
44.2%
AS2497 JP Nagano Nagano
210.138.192.0/18 16.4K
0.0%
AS2497 JP Tokyo Tokyo
210.148.192.0/18 16.4K
43.1%
AS2497 JP Tokyo Kamata
220.100.192.0/18 16.4K
51.0%
AS2497 JP
220.156.64.0/18 16.4K
0.0%
AS2497 JP
220.210.128.0/18 16.4K
99.8%
AS2497 JP Tokyo Tokyo
61.211.96.0/19 8.2K
0.0%
AS2497 JP
133.159.64.0/19 8.2K
0.0%
AS2497 JP Tokyo Adachi
133.183.128.0/19 8.2K
0.1%
AS2497 JP
133.194.192.0/19 8.2K
0.0%
AS2497 JP
133.238.32.0/19 8.2K
98.6%
AS2497 JP Osaka Kamikita
202.32.224.0/19 8.2K
0.0%
AS2497 JP Tokyo Shinjuku
202.232.32.0/19 8.2K
0.0%
AS2497 JP Aichi Nagoya
202.251.0.0/19 8.2K
0.1%
AS2497 JP
203.139.224.0/19 8.2K
45.4%
AS2497 JP
203.180.32.0/19 8.2K
0.0%
AS2497 JP Saitama Kawaguchi
203.180.224.0/19 8.2K
0.0%
AS2497 JP Tokyo Hino
210.128.128.0/19 8.2K
0.0%
AS2497 JP Tokyo Arakawa
210.128.192.0/19 8.2K
0.0%
AS2497 JP Kanagawa Nagatsutachō
210.130.32.0/19 8.2K
0.0%
AS2497 JP Kanagawa Honchō
210.130.160.0/19 8.2K
0.0%
AS2497 JP Tokyo Shibuya City

Frequently Asked Questions

How many IP addresses does Internet Initiative Japan Inc. own?

Internet Initiative Japan Inc. controls 3.91M IPv4 addresses distributed across 164 CIDR ranges. The organization is registered in Japan.

What ASNs does Internet Initiative Japan Inc. operate?

Internet Initiative Japan Inc. operates 2 Autonomous Systems. Each ASN represents an independently routed network that Internet Initiative Japan Inc. manages for internet traffic delivery.

What countries does Internet Initiative Japan Inc. serve?

Internet Initiative Japan Inc. has IP address allocations in 4 countries, indicating a multinational network presence for delivering services across these regions.

What type of organization is Internet Initiative Japan Inc.?

Internet Initiative Japan Inc. is categorized as isp. This classification is based on the organization's primary use of its IP address allocations.

Last updated: 2026-07-29 17:40:30 UTC
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