asn.dev

Address space

AS4837 CHINA169-BACKBONE CHINA UNICOM China169 Backbone

IPv4 prefixes 3,119 57.25M addresses
IPv6 prefixes 1,835
Most common size /22 IPv4
Flagged 0

Shape

Prefix sizes

IPv4
/11
/11: 1
1
/12
/12: 7
7
/13
/13: 16
16
/14
/14: 33
33
/15
/15: 67
67
/16
/16: 107
107
/17
/17: 163
163
/18
/18: 239
239
/19
/19: 299
299
/20
/20: 369
369
/21
/21: 432
432
/22
/22: 527
527
/23
/23: 447
447
/24
/24: 412
412

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
/29
/29: 3
3
/30
/30: 22
22
/31
/31: 60
60
/32
/32: 94
94
/33
/33: 64
64
/34
/34: 78
78
/35
/35: 76
76
/36
/36: 68
68
/37
/37: 102
102
/38
/38: 110
110
/39
/39: 117
117
/40
/40: 117
117
/41
/41: 116
116
/42
/42: 119
119
/43
/43: 105
105
/44
/44: 119
119
/45
/45: 104
104
/46
/46: 102
102
/47
/47: 110
110
/48
/48: 149
149

Geography

Where the space lands

CountryNamePrefixes
CNChina4,954

Inventory

All prefixes

showing 400 of 4,954
PrefixFamilyAddressesCountryFlags
1.24.0.0/19IPv48,192CN
1.24.40.0/21IPv42,048CN
1.24.48.0/20IPv44,096CN
1.24.64.0/20IPv44,096CN
1.28.184.0/21IPv42,048CN
1.24.95.0/24IPv4256CN
1.24.96.0/19IPv48,192CN
1.24.128.0/18IPv416,384CN
1.24.200.0/21IPv42,048CN
1.24.208.0/21IPv42,048CN
1.24.220.0/22IPv41,024CN
1.24.224.0/21IPv42,048CN
1.24.232.0/22IPv41,024CN
1.24.240.0/20IPv44,096CN
1.25.8.0/21IPv42,048CN
1.25.16.0/21IPv42,048CN
1.25.36.0/22IPv41,024CN
1.25.48.0/20IPv44,096CN
1.25.64.0/20IPv44,096CN
1.25.80.0/21IPv42,048CN
1.25.88.0/22IPv41,024CN
1.25.96.0/19IPv48,192CN
1.25.136.0/21IPv42,048CN
1.25.144.0/20IPv44,096CN
1.25.160.0/19IPv48,192CN
1.25.192.0/18IPv416,384CN
1.26.0.0/15IPv4131,072CN
1.28.0.0/21IPv42,048CN
1.28.8.0/22IPv41,024CN
1.28.28.0/22IPv41,024CN
1.28.32.0/21IPv42,048CN
1.28.40.0/24IPv4256CN
1.28.43.0/24IPv4256CN
1.28.44.0/22IPv41,024CN
1.28.48.0/20IPv44,096CN
1.28.64.0/19IPv48,192CN
1.28.100.0/22IPv41,024CN
1.28.104.0/21IPv42,048CN
1.28.112.0/20IPv44,096CN
1.28.128.0/21IPv42,048CN
1.28.136.0/22IPv41,024CN
1.28.144.0/22IPv41,024CN
1.28.152.0/22IPv41,024CN
1.28.160.0/21IPv42,048CN
1.28.172.0/22IPv41,024CN
1.28.180.0/22IPv41,024CN
1.28.192.0/19IPv48,192CN
1.28.228.0/22IPv41,024CN
1.28.232.0/21IPv42,048CN
1.28.240.0/20IPv44,096CN
1.29.0.0/16IPv465,536CN
1.30.0.0/19IPv48,192CN
1.30.32.0/21IPv42,048CN
1.30.52.0/22IPv41,024CN
1.30.56.0/21IPv42,048CN
1.30.64.0/20IPv44,096CN
1.30.80.0/21IPv42,048CN
1.30.88.0/22IPv41,024CN
1.30.104.0/21IPv42,048CN
1.30.112.0/20IPv44,096CN
1.30.128.0/19IPv48,192CN
1.30.160.0/24IPv4256CN
1.30.161.0/24IPv4256CN
1.30.162.0/23IPv4512CN
1.30.168.0/21IPv42,048CN
1.30.176.0/22IPv41,024CN
1.30.188.0/22IPv41,024CN
1.30.192.0/18IPv416,384CN
1.31.0.0/19IPv48,192CN
1.31.32.0/22IPv41,024CN
1.31.40.0/21IPv42,048CN
1.31.48.0/20IPv44,096CN
1.31.64.0/18IPv416,384CN
1.31.128.0/18IPv416,384CN
1.31.196.0/22IPv41,024CN
1.31.200.0/21IPv42,048CN
1.31.208.0/20IPv44,096CN
1.31.224.0/19IPv48,192CN
1.56.0.0/14IPv4262,144CN
1.60.0.0/15IPv4131,072CN
1.62.0.0/17IPv432,768CN
1.62.128.0/19IPv48,192CN
1.62.160.0/20IPv44,096CN
1.62.176.0/22IPv41,024CN
1.62.180.0/23IPv4512CN
1.62.182.0/24IPv4256CN
1.62.183.0/24IPv4256CN
1.62.184.0/21IPv42,048CN
1.62.192.0/18IPv416,384CN
1.63.0.0/16IPv465,536CN
1.188.0.0/14IPv4262,144CN
14.204.0.0/21IPv42,048CN
14.204.8.0/22IPv41,024CN
14.204.12.0/22IPv41,024CN
14.204.16.0/21IPv42,048CN
14.204.24.0/21IPv42,048CN
14.204.32.0/21IPv42,048CN
14.204.40.0/22IPv41,024CN
14.204.44.0/22IPv41,024CN
14.204.48.0/20IPv44,096CN
14.204.64.0/18IPv416,384CN
14.204.128.0/18IPv416,384CN
14.204.192.0/20IPv44,096CN
14.204.208.0/22IPv41,024CN
14.204.212.0/22IPv41,024CN
14.204.216.0/21IPv42,048CN
14.204.224.0/19IPv48,192CN
14.205.0.0/21IPv42,048CN
14.205.8.0/21IPv42,048CN
14.205.16.0/20IPv44,096CN
14.205.32.0/20IPv44,096CN
14.205.48.0/20IPv44,096CN
14.205.64.0/21IPv42,048CN
14.205.72.0/22IPv41,024CN
14.205.76.0/22IPv41,024CN
14.205.80.0/20IPv44,096CN
14.205.96.0/19IPv48,192CN
14.205.128.0/17IPv432,768CN
27.0.128.0/24IPv4256CN
27.0.130.0/23IPv4512CN
27.8.0.0/13IPv4524,288CN
27.40.0.0/23IPv4512CN
27.40.8.0/23IPv4512CN
27.40.10.0/24IPv4256CN
27.40.14.0/24IPv4256CN
27.40.22.0/23IPv4512CN
27.40.24.0/21IPv42,048CN
27.40.32.0/20IPv44,096CN
27.40.48.0/21IPv42,048CN
27.40.56.0/22IPv41,024CN
27.40.60.0/23IPv4512CN
27.50.128.0/17IPv432,768CN
27.98.224.0/19IPv48,192CN
27.112.0.0/21IPv42,048CN
27.115.80.0/24IPv4256CN
27.192.0.0/12IPv41,048,576CN
27.208.0.0/13IPv4524,288CN
27.216.0.0/14IPv4262,144CN
27.220.0.0/15IPv4131,072CN
27.222.0.0/16IPv465,536CN
27.223.0.0/23IPv4512CN
27.223.2.0/23IPv4512CN
27.223.4.0/22IPv41,024CN
27.223.8.0/21IPv42,048CN
27.223.16.0/20IPv44,096CN
27.223.32.0/19IPv48,192CN
27.223.64.0/19IPv48,192CN
27.223.96.0/23IPv4512CN
27.223.98.0/24IPv4256CN
27.223.99.0/24IPv4256CN
27.223.100.0/23IPv4512CN
27.223.102.0/24IPv4256CN
27.223.103.0/24IPv4256CN
27.223.104.0/21IPv42,048CN
27.223.112.0/20IPv44,096CN
27.223.128.0/17IPv432,768CN
36.32.64.0/18IPv416,384CN
36.32.128.0/17IPv432,768CN
36.33.48.0/20IPv44,096CN
36.33.64.0/18IPv416,384CN
36.33.128.0/20IPv44,096CN
36.33.144.0/21IPv42,048CN
36.33.153.0/24IPv4256CN
36.33.154.0/23IPv4512CN
36.33.156.0/22IPv41,024CN
36.33.160.0/19IPv48,192CN
36.33.192.0/20IPv44,096CN
36.33.208.0/21IPv42,048CN
36.33.248.0/21IPv42,048CN
36.34.24.0/21IPv42,048CN
36.34.32.0/19IPv48,192CN
36.34.64.0/18IPv416,384CN
36.34.128.0/17IPv432,768CN
36.35.32.0/19IPv48,192CN
36.35.64.0/18IPv416,384CN
36.35.128.0/18IPv416,384CN
36.35.192.0/19IPv48,192CN
36.35.224.0/20IPv44,096CN
36.35.240.0/21IPv42,048CN
36.35.249.0/24IPv4256CN
36.35.250.0/23IPv4512CN
36.35.252.0/22IPv41,024CN
36.50.226.0/24IPv4256CN
36.51.253.0/24IPv4256CN
36.248.0.0/14IPv4262,144CN
39.64.0.0/11IPv42,097,152CN
42.4.0.0/14IPv4262,144CN
42.48.0.0/15IPv4131,072CN
42.52.0.0/14IPv4262,144CN
42.56.0.0/14IPv4262,144CN
42.63.0.0/16IPv465,536CN
42.84.0.0/17IPv432,768CN
42.84.128.0/19IPv48,192CN
42.84.160.0/20IPv44,096CN
42.84.184.0/21IPv42,048CN
42.84.192.0/18IPv416,384CN
42.85.0.0/16IPv465,536CN
42.86.0.0/15IPv4131,072CN
42.176.0.0/13IPv4524,288CN
42.224.0.0/14IPv4262,144CN
42.228.0.0/22IPv41,024CN
42.228.4.0/24IPv4256CN
42.228.5.0/24IPv4256CN
42.228.6.0/23IPv4512CN
42.228.8.0/22IPv41,024CN
42.228.12.0/23IPv4512CN
42.228.14.0/23IPv4512CN
42.228.16.0/20IPv44,096CN
42.228.32.0/19IPv48,192CN
42.228.64.0/18IPv416,384CN
42.228.128.0/17IPv432,768CN
42.229.0.0/16IPv465,536CN
42.230.0.0/15IPv4131,072CN
42.232.0.0/15IPv4131,072CN
42.234.0.0/16IPv465,536CN
42.235.0.0/17IPv432,768CN
42.235.128.0/18IPv416,384CN
42.235.192.0/21IPv42,048CN
42.235.200.0/22IPv41,024CN
42.235.204.0/24IPv4256CN
42.235.205.0/24IPv4256CN
42.235.206.0/23IPv4512CN
42.235.208.0/20IPv44,096CN
42.235.224.0/19IPv48,192CN
42.236.0.0/14IPv4262,144CN
43.224.12.0/22IPv41,024CN
43.224.24.0/22IPv41,024CN
43.224.52.0/23IPv4512CN
43.224.80.0/22IPv41,024CN
43.226.116.0/22IPv41,024CN
43.227.104.0/22IPv41,024CN
43.239.120.0/22IPv41,024CN
43.240.56.0/22IPv41,024CN
43.240.204.0/22IPv41,024CN
43.242.152.0/21IPv42,048CN
43.242.164.0/22IPv41,024CN
43.242.180.0/22IPv41,024CN
43.243.4.0/22IPv41,024CN
43.243.16.0/22IPv41,024CN
43.243.156.0/22IPv41,024CN
43.243.228.0/22IPv41,024CN
43.247.4.0/24IPv4256CN
43.248.108.0/22IPv41,024CN
43.248.192.0/22IPv41,024CN
43.248.244.0/22IPv41,024CN
43.249.136.0/22IPv41,024CN
43.249.236.0/22IPv41,024CN
43.250.4.0/22IPv41,024CN
43.250.97.0/24IPv4256CN
43.250.98.0/23IPv4512CN
43.250.112.0/22IPv41,024CN
43.250.168.0/22IPv41,024CN
43.250.200.0/22IPv41,024CN
43.250.244.0/22IPv41,024CN
43.251.4.0/22IPv41,024CN
43.251.36.0/22IPv41,024CN
43.251.232.0/22IPv41,024CN
43.254.8.0/22IPv41,024CN
43.254.136.0/22IPv41,024CN
43.255.96.0/22IPv41,024CN
45.115.164.0/22IPv41,024CN
45.119.68.0/22IPv41,024CN
45.250.32.0/21IPv42,048CN
45.252.0.0/22IPv41,024CN
45.252.104.0/23IPv4512CN
45.254.48.0/23IPv4512CN
45.254.50.0/24IPv4256CN
49.4.96.0/21IPv42,048CN
49.4.104.0/22IPv41,024CN
49.4.108.0/23IPv4512CN
49.4.110.0/24IPv4256CN
58.16.0.0/19IPv48,192CN
58.16.32.0/22IPv41,024CN
58.16.36.0/22IPv41,024CN
58.16.40.0/21IPv42,048CN
58.16.48.0/20IPv44,096CN
58.16.64.0/18IPv416,384CN
58.16.128.0/17IPv432,768CN
58.17.0.0/17IPv432,768CN
58.17.128.0/18IPv416,384CN
58.17.192.0/19IPv48,192CN
58.17.224.0/20IPv44,096CN
58.17.240.0/22IPv41,024CN
58.17.244.0/22IPv41,024CN
58.17.248.0/21IPv42,048CN
58.18.0.0/18IPv416,384CN
58.18.64.0/19IPv48,192CN
58.18.112.0/20IPv44,096CN
58.18.128.0/17IPv432,768CN
58.19.0.0/16IPv465,536CN
58.20.0.0/15IPv4131,072CN
58.22.0.0/18IPv416,384CN
58.22.64.0/19IPv48,192CN
58.22.96.0/21IPv42,048CN
58.22.104.0/23IPv4512CN
58.22.106.0/23IPv4512CN
58.22.108.0/22IPv41,024CN
58.22.112.0/20IPv44,096CN
58.22.128.0/17IPv432,768CN
58.23.0.0/24IPv4256CN
58.23.1.0/24IPv4256CN
58.23.2.0/23IPv4512CN
58.23.4.0/22IPv41,024CN
58.23.8.0/21IPv42,048CN
58.23.16.0/20IPv44,096CN
58.23.32.0/19IPv48,192CN
58.23.64.0/18IPv416,384CN
58.23.128.0/17IPv432,768CN
58.144.0.0/17IPv432,768CN
58.144.128.0/20IPv44,096CN
58.144.144.0/22IPv41,024CN
58.144.148.0/22IPv41,024CN
58.144.152.0/21IPv42,048CN
58.144.160.0/19IPv48,192CN
58.144.192.0/20IPv44,096CN
58.144.208.0/21IPv42,048CN
58.144.216.0/22IPv41,024CN
58.144.220.0/23IPv4512CN
58.144.222.0/23IPv4512CN
58.144.224.0/19IPv48,192CN
58.240.0.0/19IPv48,192CN
58.240.32.0/20IPv44,096CN
58.240.48.0/23IPv4512CN
58.240.50.0/23IPv4512CN
58.240.52.0/22IPv41,024CN
58.240.56.0/22IPv41,024CN
58.240.60.0/23IPv4512CN
58.240.62.0/23IPv4512CN
58.240.64.0/18IPv416,384CN
58.240.128.0/19IPv48,192CN
58.240.160.0/20IPv44,096CN
58.240.176.0/22IPv41,024CN
58.240.180.0/23IPv4512CN
58.240.184.0/21IPv42,048CN
58.240.192.0/18IPv416,384CN
58.241.0.0/18IPv416,384CN
58.241.64.0/23IPv4512CN
58.241.66.0/23IPv4512CN
58.241.68.0/22IPv41,024CN
58.241.72.0/21IPv42,048CN
58.241.80.0/20IPv44,096CN
58.241.96.0/19IPv48,192CN
58.241.128.0/19IPv48,192CN
58.241.160.0/24IPv4256CN
58.241.161.0/24IPv4256CN
58.241.162.0/23IPv4512CN
58.241.164.0/22IPv41,024CN
58.241.168.0/21IPv42,048CN
58.241.176.0/20IPv44,096CN
58.241.192.0/19IPv48,192CN
58.241.224.0/21IPv42,048CN
58.241.232.0/22IPv41,024CN
58.241.236.0/22IPv41,024CN
58.241.240.0/20IPv44,096CN
58.242.8.0/21IPv42,048CN
58.242.16.0/20IPv44,096CN
58.242.40.0/21IPv42,048CN
58.242.48.0/20IPv44,096CN
58.242.64.0/18IPv416,384CN
58.242.128.0/18IPv416,384CN
58.242.208.0/20IPv44,096CN
58.242.224.0/20IPv44,096CN
58.242.240.0/21IPv42,048CN
58.242.248.0/23IPv4512CN
58.242.252.0/22IPv41,024CN
58.243.0.0/19IPv48,192CN
58.243.48.0/20IPv44,096CN
58.243.64.0/18IPv416,384CN
58.243.128.0/19IPv48,192CN
58.243.168.0/21IPv42,048CN
58.243.176.0/20IPv44,096CN
58.243.192.0/19IPv48,192CN
58.243.232.0/21IPv42,048CN
58.243.240.0/21IPv42,048CN
58.244.0.0/15IPv4131,072CN
58.247.118.0/24IPv4256CN
59.81.8.0/23IPv4512CN
59.81.40.0/23IPv4512CN
59.81.46.0/24IPv4256CN
59.81.82.0/23IPv4512CN
59.81.94.0/23IPv4512CN
59.81.102.0/23IPv4512CN
59.81.104.0/23IPv4512CN
59.83.192.0/20IPv44,096CN
59.83.208.0/21IPv42,048CN
59.83.216.0/23IPv4512CN
59.83.221.0/24IPv4256CN
59.83.222.0/23IPv4512CN
59.83.224.0/23IPv4512CN
59.83.226.0/24IPv4256CN
59.83.228.0/23IPv4512CN
59.83.231.0/24IPv4256CN
59.83.232.0/22IPv41,024CN
60.0.0.0/15IPv4131,072CN
60.2.0.0/17IPv432,768CN
60.2.128.0/20IPv44,096CN
60.2.144.0/23IPv4512CN
60.2.146.0/23IPv4512CN
60.2.148.0/22IPv41,024CN
60.2.152.0/21IPv42,048CN

Capped at 400 rows to keep the page a sane size. The filter searches only what is rendered.