AS17676 SoftBank Corp.

GIGAINFRA - SoftBank Corp. · registered in Japan

IPv4 addresses38,445,056183 prefixes · 1.227% of announced IPv4

Rank in Japan#1largest network in JP by IPv4 space, of 724 · 23.83% of JP

Rank worldwide#10of 79,396 networks with IPv4

IPv64,353 x /32 (285,278,208 x /48)3 prefixes

CountryJapan745 ASNs registered there

Open AS17676 in ASN lookup Look up an IP in this network (1.112.0.1) All networks in Japan

IPv4 prefixes

All 183 prefixes, in address order.

1.112.0.0/14
36.240.0.0/13
49.252.0.0/15
60.64.0.0/10
60.128.0.0/11
61.45.240.0/21
61.114.240.0/20
61.115.192.0/20
61.122.32.0/20
61.125.128.0/20
61.193.160.0/19
61.195.176.0/20
61.200.0.0/18
61.202.192.0/18
61.203.128.0/20
61.206.16.0/20
61.206.128.0/18
61.213.0.0/20
61.215.192.0/20
100.42.26.0/24
101.102.128.0/17
101.110.0.0/18
103.28.164.0/22
111.188.0.0/14
114.48.0.0/14
117.55.0.0/17
118.103.0.0/17
119.72.0.0/16
122.128.98.0/24
126.0.0.0/12
126.16.0.0/15
126.19.0.0/16
126.20.0.0/14
126.24.0.0/14
126.28.0.0/15
126.31.0.0/16
126.32.0.0/12
126.48.0.0/14
126.53.0.0/16
126.54.0.0/15
126.56.0.0/13
126.64.0.0/11
126.96.0.0/15
126.99.0.0/16
126.100.0.0/16
126.102.0.0/15
126.105.0.0/16
126.106.0.0/15
126.108.0.0/14
126.112.0.0/12
126.128.0.0/14
126.133.0.0/16
126.134.0.0/15
126.138.0.0/15
126.140.0.0/14
126.144.0.0/12
126.160.0.0/14
126.166.0.0/15
126.168.0.0/13
126.176.0.0/14
126.180.0.0/15
126.182.0.0/16
126.184.0.0/14
126.188.0.0/16
126.193.0.0/16
126.194.0.0/15
126.196.0.0/15
126.199.0.0/16
126.200.0.0/16
126.203.0.0/16
126.204.0.0/14
126.208.0.0/16
126.211.0.0/16
126.212.0.0/14
126.216.0.0/14
126.220.0.0/15
126.223.0.0/16
126.224.0.0/15
126.227.0.0/16
126.229.0.0/16
126.230.0.0/16
126.232.0.0/16
126.234.0.0/15
126.236.0.0/14
126.240.0.0/15
126.245.0.0/16
126.247.0.0/16
126.248.0.0/15
126.250.0.0/16
126.252.0.0/14
157.103.10.0/23
157.103.12.0/24
157.103.20.0/24
157.103.51.0/24
157.103.52.0/24
158.207.13.0/24
158.207.14.0/23
158.207.16.0/20
160.189.0.0/16
165.76.128.0/17
171.2.0.0/15
202.19.112.0/24
202.19.120.0/24
202.21.160.0/20
202.86.56.0/21
202.237.183.0/24
202.240.52.0/22
202.243.104.0/23
202.251.136.0/22
202.251.141.0/24
203.76.247.0/24
210.143.128.0/20
210.239.93.0/24
211.14.130.0/24
211.15.32.0/19
218.45.208.0/20
218.45.224.0/19
218.112.0.0/14
218.116.0.0/15
218.118.0.0/15
218.120.0.0/13
218.128.0.0/15
218.130.0.0/15
218.132.0.0/14
218.136.0.0/15
218.138.0.0/16
218.139.0.0/16
218.140.0.0/14
218.176.0.0/13
219.16.0.0/13
219.24.0.0/14
219.28.0.0/16
219.29.0.0/16
219.30.0.0/15
219.32.0.0/12
219.48.0.0/15
219.50.0.0/16
219.51.0.0/16
219.52.0.0/15
219.54.0.0/16
219.55.0.0/16
219.56.0.0/13
219.101.128.0/17
219.127.64.0/18
219.127.128.0/17
219.168.0.0/13
219.176.0.0/13
219.184.0.0/14
219.188.0.0/16
219.189.0.0/16
219.190.0.0/15
219.192.0.0/16
219.193.0.0/16
219.194.0.0/15
219.196.0.0/14
219.200.0.0/13
219.208.0.0/14
219.212.0.0/14
220.24.0.0/16
220.26.0.0/16
220.48.0.0/16
220.57.0.0/16
221.16.0.0/12
221.32.0.0/13
221.40.0.0/16
221.41.0.0/16
221.42.0.0/15
221.44.0.0/15
221.48.0.0/14
221.52.0.0/15
221.54.0.0/16
221.55.0.0/16
221.56.0.0/14
221.60.0.0/15
221.62.0.0/15
221.64.0.0/13
221.72.0.0/14
221.76.0.0/16
221.77.0.0/16
221.78.0.0/15
221.80.0.0/12
221.96.0.0/13
221.104.0.0/13

IPv6 prefixes

All 3 prefixes.

2400:2000::/20
2403:7a00::/32
2403:9900::/24

Other ASNs named SoftBank Corp.

4 other networks use the same organisation name; together with AS17676 they announce 40,377,344 IPv4 addresses.

ASNNameIPv4 addresses

AS4725ODN - SoftBank Corp. JP1,918,976

AS17505SBmobile - SoftBank Corp. JP6,656

AS146969SBT-SC - SoftBank Corp. JP6,400

AS18069SOFTBANK - SoftBank Corp. JP256

Similar-sized networks in Japan

ASNNameIPv4 addresses

AS4713#2 OCN - NTT DOCOMO BUSINESS,Inc.28,623,360

AS2516#3 KDDI - KDDI CORPORATION18,072,320

AS2907#4 SINET-AS - Research Organization of Information and Systems, National Institute of Informatics8,765,504

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