AS4694 IDC Frontier Inc.

IDCF - IDC Frontier Inc. · registered in Japan

IPv4 addresses1,040,896281 prefixes · 0.033% of announced IPv4

Rank in Japan#22largest network in JP by IPv4 space, of 724 · 0.65% of JP

Rank worldwide#351of 79,396 networks with IPv4

IPv64 x /32 (262,144 x /48)4 prefixes

CountryJapan745 ASNs registered there

Open AS4694 in ASN lookup Look up an IP in this network (61.115.224.1) All networks in Japan

IPv4 prefixes

All 281 prefixes, in address order.

61.115.224.0/20
61.121.198.0/24
61.121.200.0/24
61.121.240.0/20
61.195.160.0/20
61.203.176.0/20
61.206.32.0/20
61.215.208.0/20
64.56.160.0/19
103.241.128.0/22
153.124.236.0/23
154.33.0.0/16
154.34.64.0/18
154.34.128.0/17
158.205.0.0/18
158.205.64.0/19
158.205.96.0/20
158.205.112.0/21
158.205.120.0/23
158.205.122.0/23
158.205.124.0/22
158.205.128.0/18
158.205.192.0/22
158.205.196.0/23
158.205.198.0/24
158.205.199.0/24
158.205.200.0/21
158.205.208.0/20
158.205.224.0/22
158.205.228.0/23
158.205.230.0/23
158.205.232.0/22
158.205.236.0/23
158.205.238.0/24
158.205.239.0/24
158.205.240.0/20
160.239.20.0/23
160.239.31.0/24
160.239.32.0/22
164.46.0.0/16
182.54.252.0/22
202.33.0.0/21
202.33.64.0/22
202.33.92.0/22
202.33.102.0/23
202.33.104.0/21
202.33.200.0/21
202.33.216.0/21
202.58.1.0/24
202.218.0.0/21
202.218.8.0/22
202.218.12.0/23
202.218.15.0/24
202.218.16.0/20
202.218.32.0/22
202.218.36.0/22
202.218.40.0/21
202.218.48.0/22
202.218.52.0/22
202.218.56.0/21
202.218.64.0/20
202.218.80.0/20
202.218.96.0/21
202.218.104.0/22
202.218.108.0/23
202.218.110.0/23
202.218.112.0/21
202.218.120.0/21
202.218.128.0/18
202.218.192.0/19
202.218.224.0/20
202.218.240.0/21
202.218.248.0/22
202.218.252.0/23
202.218.254.0/23
202.228.192.0/22
202.228.196.0/23
202.228.198.0/23
202.228.200.0/21
202.228.208.0/20
202.228.224.0/22
202.228.228.0/23
202.228.230.0/24
202.228.231.0/24
202.228.232.0/23
202.228.234.0/23
202.228.236.0/22
202.230.0.0/20
202.230.16.0/23
202.230.18.0/24
202.230.20.0/22
202.230.24.0/21
202.230.32.0/20
202.230.48.0/21
202.230.56.0/23
202.230.58.0/24
202.230.60.0/22
202.230.64.0/18
202.230.128.0/18
202.230.192.0/21
202.230.200.0/23
202.230.202.0/23
202.230.204.0/23
202.230.206.0/23
202.230.208.0/20
202.230.224.0/21
202.230.232.0/22
202.230.236.0/22
202.230.240.0/20
202.234.0.0/18
202.234.129.0/24
202.234.130.0/24
202.234.132.0/22
202.234.137.0/24
202.234.138.0/23
202.234.140.0/22
202.234.144.0/24
202.234.147.0/24
202.234.148.0/22
202.234.153.0/24
202.234.155.0/24
202.234.156.0/22
202.234.160.0/19
202.239.16.0/22
202.239.20.0/23
202.239.22.0/23
202.239.24.0/21
202.239.32.0/21
202.239.40.0/22
202.239.44.0/24
202.239.45.0/24
202.239.46.0/23
202.239.48.0/20
202.241.192.0/18
203.137.0.0/16
203.145.224.0/19
203.183.0.0/18
203.183.64.0/19
203.183.96.0/19
203.183.128.0/20
203.183.144.0/21
203.183.152.0/24
203.183.156.0/22
203.183.160.0/19
203.183.192.0/20
203.183.208.0/21
203.183.216.0/22
203.183.220.0/22
203.183.224.0/21
203.183.232.0/21
203.183.240.0/20
203.216.128.0/19
206.3.0.0/19
210.129.0.0/19
210.129.32.0/19
210.129.64.0/18
210.129.128.0/19
210.129.160.0/20
210.129.176.0/21
210.129.184.0/24
210.129.186.0/23
210.129.188.0/22
210.129.192.0/18
210.140.0.0/21
210.140.8.0/23
210.140.10.0/23
210.140.12.0/22
210.140.16.0/20
210.140.34.0/23
210.140.36.0/22
210.140.40.0/21
210.140.48.0/20
210.140.64.0/18
210.140.128.0/17
210.152.0.0/20
210.152.16.0/22
210.152.20.0/22
210.152.24.0/21
210.152.32.0/20
210.152.48.0/21
210.152.56.0/21
210.152.64.0/20
210.152.80.0/20
210.152.96.0/19
210.152.128.0/18
210.152.192.0/21
210.152.200.0/22
210.152.204.0/24
210.152.205.0/24
210.152.206.0/23
210.152.208.0/20
210.152.224.0/20
210.152.240.0/21
210.152.248.0/22
210.152.252.0/22
210.158.192.0/21
210.158.200.0/22
210.158.204.0/23
210.158.206.0/24
210.158.208.0/20
210.168.0.0/17
210.171.96.0/20
210.171.112.0/21
210.171.120.0/23
210.171.122.0/24
210.171.124.0/22
210.189.64.0/20
210.189.80.0/22
210.189.84.0/23
210.189.86.0/23
210.189.88.0/21
210.189.208.0/20
210.189.224.0/20
210.189.240.0/21
210.189.248.0/24
210.189.250.0/23
210.189.252.0/22
210.235.0.0/22
210.235.4.0/23
210.235.8.0/21
210.235.16.0/20
210.236.224.0/21
210.236.232.0/23
210.236.236.0/22
210.236.240.0/20
210.239.32.0/23
210.239.34.0/23
210.239.36.0/22
210.239.40.0/21
210.239.48.0/20
210.239.64.0/21
210.239.74.0/23
210.239.76.0/22
210.239.80.0/21
210.239.88.0/22
210.239.92.0/24
210.239.94.0/23
210.250.192.0/19
210.252.96.0/22
210.252.100.0/23
210.252.102.0/24
210.252.104.0/21
210.252.112.0/20
211.2.192.0/21
211.2.200.0/22
211.2.204.0/23
211.2.206.0/24
211.2.207.0/24
211.2.208.0/20
211.2.224.0/19
211.10.0.0/20
211.10.16.0/23
211.10.18.0/23
211.10.20.0/22
211.10.24.0/21
211.13.224.0/19
211.14.128.0/23
211.14.131.0/24
211.14.132.0/22
211.14.136.0/21
211.14.144.0/20
211.14.160.0/20
211.14.176.0/20
211.120.0.0/19
211.120.32.0/22
211.120.36.0/22
211.120.40.0/21
211.120.48.0/20
211.133.128.0/23
211.133.130.0/24
211.133.131.0/24
211.133.132.0/24
211.133.133.0/24
211.133.134.0/24
211.133.135.0/24
211.133.136.0/22
211.133.140.0/22
211.133.240.0/21
211.133.248.0/22
211.133.252.0/22
216.255.224.0/20

IPv6 prefixes

All 4 prefixes.

2001:310::/32
2001:d88::/32
2406:600::/32
2406:a00::/32

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS2519#19 VECTANT - ARTERIA Networks Corporation1,464,320

AS4685#20 ASAHI-NET - Asahi Net1,277,952

AS9617#21 ZAQ - JCOM Co., Ltd.1,163,264

AS7679#23 QTNET - QTnet,Inc.760,832

AS4721#24 JCN - JCOM Co., Ltd.631,808

AS7522#25 STCN - STNet, Incorporated594,944

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources