asn.dev

Address space

AS2497 IIJ Internet Initiative Japan Inc.

IPv4 prefixes 188 3.92M addresses
IPv6 prefixes 8
Most common size /16 IPv4
Flagged 0

Shape

Prefix sizes

IPv4
/15
/15: 2
2
/16
/16: 38
38
/17
/17: 18
18
/18
/18: 17
17
/19
/19: 20
20
/20
/20: 16
16
/21
/21: 18
18
/22
/22: 16
16
/23
/23: 19
19
/24
/24: 24
24

How this network carves its IPv4 space. A wall of /24s usually means many small customer assignments or fine-grained traffic engineering; a few short prefixes means large contiguous allocations announced whole.

Shape

Prefix sizes

IPv6
/32
/32: 4
4
/35
/35: 1
1
/47
/47: 2
2
/48
/48: 1
1

Geography

Where the space lands

CountryNamePrefixes
JPJapan196

Inventory

All prefixes

196 total
PrefixFamilyAddressesCountryFlags
14.137.235.0/24IPv4256JP
14.137.243.0/24IPv4256JP
23.131.136.0/24IPv4256JP
23.159.40.0/24IPv4256JP
23.183.56.0/24IPv4256JP
49.239.64.0/18IPv416,384JP
58.138.0.0/17IPv432,768JP
58.138.128.0/18IPv416,384JP
61.122.224.0/20IPv44,096JP
61.124.0.0/19IPv48,192JP
61.211.96.0/19IPv48,192JP
101.128.128.0/17IPv432,768JP
103.2.57.0/24IPv4256JP
103.2.58.0/23IPv4512JP
103.5.23.0/24IPv4256JP
103.26.166.0/23IPv4512JP
103.76.87.0/24IPv4256JP
103.140.136.0/23IPv4512JP
113.197.128.0/17IPv432,768JP
116.118.192.0/20IPv44,096JP
118.151.0.0/17IPv432,768JP
118.151.128.0/18IPv416,384JP
119.10.192.0/18IPv416,384JP
121.50.160.0/21IPv42,048JP
121.102.0.0/16IPv465,536JP
121.200.200.0/21IPv42,048JP
124.41.0.0/17IPv432,768JP
124.41.128.0/18IPv416,384JP
124.147.64.0/18IPv416,384JP
125.30.0.0/16IPv465,536JP
129.249.0.0/16IPv465,536JP
131.248.0.0/16IPv465,536JP
132.179.0.0/16IPv465,536JP
133.110.0.0/15IPv4131,072JP
133.127.0.0/16IPv465,536JP
133.137.0.0/16IPv465,536JP
133.142.0.0/16IPv465,536JP
133.159.0.0/16IPv465,536JP
133.169.0.0/21IPv42,048JP
133.169.8.0/22IPv41,024JP
133.173.0.0/16IPv465,536JP
133.183.96.0/21IPv42,048JP
133.183.106.0/24IPv4256JP
133.183.128.0/19IPv48,192JP
133.194.0.0/17IPv432,768JP
133.194.128.0/18IPv416,384JP
133.194.192.0/19IPv48,192JP
133.194.224.0/20IPv44,096JP
133.194.240.0/21IPv42,048JP
133.194.248.0/22IPv41,024JP
133.194.252.0/23IPv4512JP
133.194.254.0/24IPv4256JP
133.215.0.0/16IPv465,536JP
133.218.0.0/16IPv465,536JP
133.221.0.0/22IPv41,024JP
133.221.4.0/22IPv41,024JP
133.221.8.0/21IPv42,048JP
133.221.16.0/20IPv44,096JP
133.221.32.0/19IPv48,192JP
133.221.64.0/18IPv416,384JP
133.221.128.0/17IPv432,768JP
133.236.0.0/16IPv465,536JP
133.238.8.0/21IPv42,048JP
133.238.16.0/20IPv44,096JP
133.238.32.0/19IPv48,192JP
133.238.128.0/17IPv432,768JP
133.245.0.0/16IPv465,536JP
133.254.0.0/16IPv465,536JP
134.237.0.0/16IPv465,536JP
138.107.0.0/16IPv465,536JP
139.152.0.0/21IPv42,048JP
139.152.8.0/22IPv41,024JP
139.152.12.0/22IPv41,024JP
139.152.16.0/20IPv44,096JP
139.152.32.0/19IPv48,192JP
139.152.64.0/18IPv416,384JP
139.152.128.0/17IPv432,768JP
143.94.0.0/17IPv432,768JP
143.94.128.0/18IPv416,384JP
143.94.192.0/20IPv44,096JP
143.94.208.0/21IPv42,048JP
143.94.216.0/23IPv4512JP
143.94.218.0/23IPv4512JP
143.94.220.0/22IPv41,024JP
143.94.224.0/19IPv48,192JP
143.125.0.0/17IPv432,768JP
143.125.128.0/18IPv416,384JP
143.125.192.0/20IPv44,096JP
143.125.208.0/22IPv41,024JP
150.23.0.0/16IPv465,536JP
150.31.0.0/16IPv465,536JP
150.61.5.0/24IPv4256JP
150.61.54.0/23IPv4512JP
150.87.0.0/16IPv465,536JP
150.90.0.0/16IPv465,536JP
157.65.8.0/21IPv42,048JP
157.65.176.0/21IPv42,048JP
157.65.192.0/21IPv42,048JP
157.67.0.0/16IPv465,536JP
160.13.0.0/16IPv465,536JP
160.17.0.0/16IPv465,536JP
163.49.0.0/16IPv465,536JP
163.55.0.0/16IPv465,536JP
163.140.0.0/16IPv465,536JP
163.218.0.0/16IPv465,536JP
167.169.0.0/16IPv465,536JP
172.122.0.0/15IPv4131,072JP
178.239.124.0/23IPv4512JP
178.239.126.0/24IPv4256JP
182.54.240.0/22IPv41,024JP
192.47.161.0/24IPv4256JP
192.50.252.0/23IPv4512JP
192.70.131.0/24IPv4256JP
192.244.8.0/21IPv42,048JP
202.15.44.0/23IPv4512JP
202.19.224.0/21IPv42,048JP
202.22.208.0/20IPv44,096JP
202.24.192.0/22IPv41,024JP
202.24.196.0/24IPv4256JP
202.32.0.0/16IPv465,536JP
202.48.108.0/23IPv4512JP
202.141.192.0/20IPv44,096JP
202.155.129.0/24IPv4256JP
202.155.130.0/24IPv4256JP
202.214.0.0/16IPv465,536JP
202.221.0.0/16IPv465,536JP
202.224.128.0/18IPv416,384JP
202.232.0.0/16IPv465,536JP
202.238.128.0/17IPv432,768JP
202.242.16.0/23IPv4512JP
202.244.222.0/24IPv4256JP
202.245.176.0/20IPv44,096JP
202.250.154.0/23IPv4512JP
202.251.0.0/19IPv48,192JP
202.253.160.0/22IPv41,024JP
203.139.224.0/19IPv48,192JP
203.180.0.0/16IPv465,536JP
206.132.160.0/20IPv44,096JP
210.128.0.0/16IPv465,536JP
210.130.0.0/17IPv432,768JP
210.130.128.0/18IPv416,384JP
210.130.192.0/20IPv44,096JP
210.130.208.0/23IPv4512JP
210.130.211.0/24IPv4256JP
210.130.212.0/22IPv41,024JP
210.130.216.0/21IPv42,048JP
210.130.225.0/24IPv4256JP
210.130.226.0/23IPv4512JP
210.130.228.0/22IPv41,024JP
210.130.232.0/21IPv42,048JP
210.130.240.0/20IPv44,096JP
210.133.192.0/18IPv416,384JP
210.138.0.0/16IPv465,536JP
210.141.16.0/20IPv44,096JP
210.148.0.0/17IPv432,768JP
210.148.132.0/22IPv41,024JP
210.148.136.0/21IPv42,048JP
210.148.144.0/20IPv44,096JP
210.148.160.0/19IPv48,192JP
210.148.192.0/18IPv416,384JP
210.149.0.0/16IPv465,536JP
210.173.0.0/19IPv48,192JP
210.233.160.0/24IPv4256JP
210.233.162.0/23IPv4512JP
210.233.165.0/24IPv4256JP
210.233.166.0/23IPv4512JP
210.233.168.0/22IPv41,024JP
210.233.173.0/24IPv4256JP
210.233.174.0/23IPv4512JP
210.233.176.0/21IPv42,048JP
210.233.184.0/22IPv41,024JP
210.233.188.0/23IPv4512JP
210.233.190.0/24IPv4256JP
211.14.32.0/19IPv48,192JP
216.98.96.0/19IPv48,192JP
218.42.160.0/19IPv48,192JP
218.228.96.0/19IPv48,192JP
219.105.0.0/19IPv48,192JP
219.111.0.0/17IPv432,768JP
219.119.0.0/16IPv465,536JP
219.121.160.0/19IPv48,192JP
219.126.128.0/17IPv432,768JP
220.100.0.0/17IPv432,768JP
220.100.192.0/18IPv416,384JP
220.156.0.0/17IPv432,768JP
220.156.128.0/19IPv48,192JP
220.208.192.0/19IPv48,192JP
220.210.128.0/18IPv416,384JP
2001:240::/32IPv6—JP
2001:300::/32IPv6—JP
2001:48b0::/32IPv6—JP
2400:3980::/32IPv6—JP
2401:ce20:c::/47IPv6—JP
2401:ce20:e::/48IPv6—JP
2403:5700::/47IPv6—JP
240a:71:8000::/35IPv6—JP