asn.dev

Address space

AS20001 TWC-20001-PACWEST

IPv4 prefixes 627 7.14M addresses
IPv6 prefixes 159
Most common size /23 IPv4
Flagged 19

Shape

Prefix sizes

IPv4
/13
/13: 1
1
/14
/14: 8
8
/15
/15: 9
9
/16
/16: 14
14
/17
/17: 22
22
/18
/18: 45
45
/19
/19: 42
42
/20
/20: 78
78
/21
/21: 60
60
/22
/22: 73
73
/23
/23: 139
139
/24
/24: 136
136

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
/28
/28: 1
1
/32
/32: 1
1
/33
/33: 2
2
/34
/34: 5
5
/35
/35: 3
3
/36
/36: 6
6
/37
/37: 5
5
/38
/38: 5
5
/39
/39: 9
9
/40
/40: 10
10
/41
/41: 10
10
/42
/42: 10
10
/43
/43: 9
9
/44
/44: 13
13
/45
/45: 11
11
/46
/46: 10
10
/47
/47: 13
13
/48
/48: 17
17
/49
/49: 1
1
/50
/50: 1
1
/51
/51: 1
1
/52
/52: 1
1
/53
/53: 1
1
/54
/54: 1
1
/55
/55: 1
1
/56
/56: 1
1
/57
/57: 1
1
/58
/58: 1
1
/59
/59: 1
1
/60
/60: 1
1
/61
/61: 1
1
/63
/63: 2
2
/64
/64: 4
4

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America786

Review

Flagged prefixes

19 of 786
PrefixFamilyAddressesCountryFlags
2605:e000:300::/64IPv6—USToo specific
2605:e000:300:1::/64IPv6—USToo specific
2605:e000:300:2::/63IPv6—USToo specific
2605:e000:300:4::/64IPv6—USToo specific
2605:e000:300:5::/64IPv6—USToo specific
2605:e000:300:6::/63IPv6—USToo specific
2605:e000:300:8::/61IPv6—USToo specific
2605:e000:300:10::/60IPv6—USToo specific
2605:e000:300:20::/59IPv6—USToo specific
2605:e000:300:40::/58IPv6—USToo specific
2605:e000:300:80::/57IPv6—USToo specific
2605:e000:300:100::/56IPv6—USToo specific
2605:e000:300:200::/55IPv6—USToo specific
2605:e000:300:400::/54IPv6—USToo specific
2605:e000:300:800::/53IPv6—USToo specific
2605:e000:300:1000::/52IPv6—USToo specific
2605:e000:300:2000::/51IPv6—USToo specific
2605:e000:300:4000::/50IPv6—USToo specific
2605:e000:300:8000::/49IPv6—USToo specific

A flag is an observation, not an accusation. Very large and very specific prefixes are both legitimate in the right context.

Inventory

All prefixes

showing 400 of 786
PrefixFamilyAddressesCountryFlags
23.94.90.0/24IPv4256US
23.94.106.0/24IPv4256US
23.94.109.0/24IPv4256US
23.94.135.0/24IPv4256US
23.142.228.0/24IPv4256US
23.240.0.0/14IPv4262,144US
24.24.128.0/17IPv432,768US
24.25.192.0/18IPv416,384US
24.30.128.0/18IPv416,384US
24.43.0.0/17IPv432,768US
24.43.128.0/19IPv48,192US
24.43.160.0/20IPv44,096US
24.43.176.0/21IPv42,048US
24.43.192.0/19IPv48,192US
24.43.224.0/20IPv44,096US
24.43.240.0/20IPv44,096US
24.94.0.0/19IPv48,192US
24.94.64.0/19IPv48,192US
24.123.116.0/23IPv4512US
24.123.120.0/24IPv4256US
24.160.32.0/21IPv42,048US
24.160.48.0/20IPv44,096US
24.165.0.0/18IPv416,384US
24.165.64.0/20IPv44,096US
24.165.80.0/20IPv44,096US
24.199.0.0/20IPv44,096US
24.199.16.0/21IPv42,048US
24.199.24.0/22IPv41,024US
24.199.30.0/23IPv4512US
24.199.32.0/22IPv41,024US
24.199.38.0/23IPv4512US
24.199.40.0/21IPv42,048US
24.199.48.0/20IPv44,096US
35.132.40.0/21IPv42,048US
40.183.128.0/21IPv42,048US
45.40.123.0/24IPv4256US
45.48.0.0/14IPv4262,144US
45.59.192.0/18IPv416,384US
45.148.135.0/24IPv4256US
47.231.64.0/20IPv44,096US
47.231.128.0/22IPv41,024US
47.231.144.0/22IPv41,024US
50.113.0.0/16IPv465,536US
63.243.199.0/24IPv4256US
64.105.74.0/23IPv4512US
64.105.98.0/23IPv4512US
64.105.109.0/24IPv4256US
64.105.110.0/23IPv4512US
64.105.125.0/24IPv4256US
64.105.126.0/23IPv4512US
64.105.128.0/22IPv41,024US
64.105.133.0/24IPv4256US
64.105.134.0/23IPv4512US
64.105.154.0/23IPv4512US
64.105.160.0/23IPv4512US
64.105.164.0/22IPv41,024US
64.105.168.0/22IPv41,024US
64.105.174.0/23IPv4512US
64.105.176.0/23IPv4512US
64.105.180.0/22IPv41,024US
64.105.184.0/22IPv41,024US
64.105.190.0/23IPv4512US
64.105.192.0/22IPv41,024US
64.105.200.0/23IPv4512US
64.105.206.0/23IPv4512US
64.105.248.0/22IPv41,024US
64.105.252.0/23IPv4512US
64.183.0.0/22IPv41,024US
64.183.4.0/24IPv4256US
64.183.6.0/23IPv4512US
64.183.8.0/21IPv42,048US
64.183.16.0/20IPv44,096US
64.183.32.0/21IPv42,048US
64.183.40.0/23IPv4512US
64.183.44.0/22IPv41,024US
64.183.48.0/20IPv44,096US
64.183.64.0/18IPv416,384US
64.183.152.0/24IPv4256US
64.183.156.0/23IPv4512US
64.183.168.0/21IPv42,048US
65.28.212.0/24IPv4256US
65.185.254.0/23IPv4512US
66.8.128.0/17IPv432,768US
66.17.129.0/24IPv4256US
66.17.172.0/22IPv41,024US
66.17.184.0/24IPv4256US
66.27.32.0/19IPv48,192US
66.27.64.0/18IPv416,384US
66.27.128.0/18IPv416,384US
66.27.192.0/19IPv48,192US
66.27.224.0/19IPv48,192US
66.53.160.0/22IPv41,024US
66.74.0.0/17IPv432,768US
66.74.128.0/19IPv48,192US
66.74.168.0/21IPv42,048US
66.74.176.0/20IPv44,096US
66.74.192.0/18IPv416,384US
66.75.0.0/17IPv432,768US
66.75.128.0/18IPv416,384US
66.75.192.0/20IPv44,096US
66.75.208.0/21IPv42,048US
66.75.216.0/23IPv4512US
66.75.220.0/22IPv41,024US
66.75.224.0/19IPv48,192US
66.91.0.0/16IPv465,536US
66.146.237.0/24IPv4256US
66.167.12.0/23IPv4512US
66.234.230.0/23IPv4512US
66.234.236.0/23IPv4512US
66.234.240.0/23IPv4512US
66.234.248.0/23IPv4512US
67.49.0.0/17IPv432,768US
67.49.128.0/18IPv416,384US
67.49.192.0/18IPv416,384US
67.52.64.0/18IPv416,384US
67.52.136.0/21IPv42,048US
67.52.144.0/20IPv44,096US
67.52.160.0/19IPv48,192US
67.53.32.0/19IPv48,192US
67.53.112.0/20IPv44,096US
67.53.192.0/19IPv48,192US
67.103.24.0/23IPv4512US
67.103.27.0/24IPv4256US
67.103.194.0/23IPv4512US
67.103.196.0/22IPv41,024US
67.103.200.0/22IPv41,024US
67.103.204.0/23IPv4512US
67.216.236.0/23IPv4512US
68.182.208.0/22IPv41,024US
68.182.216.0/22IPv41,024US
69.31.64.0/22IPv41,024US
69.58.65.0/24IPv4256US
69.58.66.0/24IPv4256US
69.58.69.0/24IPv4256US
69.58.71.0/24IPv4256US
69.58.72.0/24IPv4256US
69.58.76.0/22IPv41,024US
69.58.89.0/24IPv4256US
69.58.90.0/23IPv4512US
69.63.80.0/21IPv42,048US
69.63.93.0/24IPv4256US
69.63.94.0/23IPv4512US
69.75.0.0/18IPv416,384US
69.75.64.0/19IPv48,192US
69.75.96.0/24IPv4256US
69.75.98.0/23IPv4512US
69.75.100.0/22IPv41,024US
69.75.104.0/21IPv42,048US
69.75.112.0/20IPv44,096US
69.75.128.0/21IPv42,048US
69.75.136.0/23IPv4512US
69.75.138.0/24IPv4256US
69.75.140.0/22IPv41,024US
69.75.144.0/20IPv44,096US
69.75.160.0/19IPv48,192US
69.75.192.0/18IPv416,384US
69.174.69.0/24IPv4256US
69.174.104.0/23IPv4512US
69.174.120.0/24IPv4256US
70.93.0.0/16IPv465,536US
70.95.0.0/16IPv465,536US
72.14.92.0/24IPv4256US
72.14.94.0/23IPv4512US
72.37.154.0/23IPv4512US
72.37.160.0/23IPv4512US
72.37.164.0/23IPv4512US
72.37.168.0/23IPv4512US
72.37.174.0/23IPv4512US
72.37.214.0/23IPv4512US
72.37.238.0/23IPv4512US
72.37.240.0/23IPv4512US
72.37.246.0/23IPv4512US
72.129.0.0/19IPv48,192US
72.129.32.0/21IPv42,048US
72.129.40.0/23IPv4512US
72.129.44.0/22IPv41,024US
72.129.48.0/20IPv44,096US
72.129.64.0/18IPv416,384US
72.130.0.0/16IPv465,536US
72.132.0.0/16IPv465,536US
72.134.0.0/16IPv465,536US
74.50.16.0/20IPv44,096US
74.62.0.0/18IPv416,384US
74.62.144.0/20IPv44,096US
74.62.172.0/22IPv41,024US
74.62.176.0/20IPv44,096US
74.62.192.0/18IPv416,384US
74.82.112.0/20IPv44,096US
74.87.16.0/20IPv44,096US
74.87.32.0/21IPv42,048US
74.87.40.0/23IPv4512US
74.87.42.0/23IPv4512US
74.87.44.0/22IPv41,024US
74.87.48.0/20IPv44,096US
74.87.133.0/24IPv4256US
74.87.134.0/24IPv4256US
74.87.136.0/23IPv4512US
74.87.144.0/23IPv4512US
74.87.148.0/23IPv4512US
74.87.156.0/22IPv41,024US
74.87.188.0/23IPv4512US
74.87.200.0/21IPv42,048US
74.87.208.0/21IPv42,048US
74.87.236.0/22IPv41,024US
74.87.241.0/24IPv4256US
74.87.243.0/24IPv4256US
74.199.188.0/23IPv4512US
74.211.128.0/18IPv416,384US
74.211.192.0/19IPv48,192US
74.211.224.0/21IPv42,048US
74.211.240.0/20IPv44,096US
75.80.0.0/18IPv416,384US
75.80.64.0/20IPv44,096US
75.80.80.0/20IPv44,096US
75.80.96.0/19IPv48,192US
75.80.128.0/18IPv416,384US
75.80.192.0/19IPv48,192US
75.80.224.0/19IPv48,192US
75.81.176.0/20IPv44,096US
75.82.0.0/15IPv4131,072US
75.84.0.0/15IPv4131,072US
75.87.224.0/20IPv44,096US
76.32.0.0/15IPv4131,072US
76.39.0.0/18IPv416,384US
76.50.0.0/15IPv4131,072US
76.53.1.0/24IPv4256US
76.53.2.0/23IPv4512US
76.53.4.0/22IPv41,024US
76.53.8.0/21IPv42,048US
76.53.16.0/20IPv44,096US
76.53.32.0/19IPv48,192US
76.53.64.0/18IPv416,384US
76.53.128.0/17IPv432,768US
76.54.0.0/17IPv432,768US
76.58.24.0/22IPv41,024US
76.79.64.0/19IPv48,192US
76.79.96.0/19IPv48,192US
76.79.128.0/19IPv48,192US
76.79.160.0/20IPv44,096US
76.79.176.0/21IPv42,048US
76.79.185.0/24IPv4256US
76.79.186.0/23IPv4512US
76.79.188.0/22IPv41,024US
76.79.192.0/18IPv416,384US
76.80.0.0/17IPv432,768US
76.80.128.0/18IPv416,384US
76.80.192.0/19IPv48,192US
76.80.224.0/21IPv42,048US
76.80.232.0/22IPv41,024US
76.80.236.0/23IPv4512US
76.80.239.0/24IPv4256US
76.80.240.0/20IPv44,096US
76.81.0.0/18IPv416,384US
76.81.64.0/23IPv4512US
76.81.66.0/23IPv4512US
76.81.68.0/22IPv41,024US
76.81.72.0/21IPv42,048US
76.81.80.0/20IPv44,096US
76.81.96.0/20IPv44,096US
76.81.112.0/23IPv4512US
76.81.114.0/23IPv4512US
76.81.116.0/22IPv41,024US
76.81.120.0/21IPv42,048US
76.81.128.0/20IPv44,096US
76.81.144.0/23IPv4512US
76.81.146.0/24IPv4256US
76.81.148.0/22IPv41,024US
76.81.152.0/21IPv42,048US
76.81.160.0/20IPv44,096US
76.81.176.0/22IPv41,024US
76.81.181.0/24IPv4256US
76.81.182.0/23IPv4512US
76.81.184.0/21IPv42,048US
76.81.192.0/18IPv416,384US
76.82.0.0/15IPv4131,072US
76.86.0.0/15IPv4131,072US
76.88.0.0/17IPv432,768US
76.88.128.0/18IPv416,384US
76.88.192.0/18IPv416,384US
76.89.44.0/22IPv41,024US
76.89.48.0/22IPv41,024US
76.89.56.0/23IPv4512US
76.89.64.0/18IPv416,384US
76.89.128.0/17IPv432,768US
76.90.0.0/15IPv4131,072US
76.93.0.0/17IPv432,768US
76.93.128.0/18IPv416,384US
76.93.192.0/19IPv48,192US
76.93.224.0/19IPv48,192US
76.94.0.0/15IPv4131,072US
76.166.0.0/20IPv44,096US
76.166.16.0/22IPv41,024US
76.166.20.0/22IPv41,024US
76.166.24.0/21IPv42,048US
76.166.32.0/19IPv48,192US
76.166.64.0/18IPv416,384US
76.166.128.0/17IPv432,768US
76.167.0.0/16IPv465,536US
76.168.0.0/14IPv4262,144US
76.172.0.0/18IPv416,384US
76.172.64.0/19IPv48,192US
76.172.96.0/20IPv44,096US
76.172.112.0/21IPv42,048US
76.172.120.0/21IPv42,048US
76.172.128.0/17IPv432,768US
76.173.0.0/16IPv465,536US
76.174.0.0/15IPv4131,072US
76.176.0.0/16IPv465,536US
76.178.6.0/23IPv4512US
76.178.8.0/21IPv42,048US
76.178.32.0/19IPv48,192US
76.178.64.0/20IPv44,096US
76.178.80.0/21IPv42,048US
76.178.96.0/22IPv41,024US
76.178.100.0/22IPv41,024US
76.178.104.0/21IPv42,048US
76.178.112.0/20IPv44,096US
88.209.203.0/24IPv4256US
88.209.230.0/24IPv4256US
88.209.255.0/24IPv4256US
88.216.21.0/24IPv4256US
88.216.103.0/24IPv4256US
88.216.185.0/24IPv4256US
88.216.212.0/24IPv4256US
89.23.81.0/24IPv4256US
89.34.171.0/24IPv4256US
89.187.20.0/24IPv4256US
98.145.0.0/19IPv48,192US
98.145.36.0/22IPv41,024US
98.145.40.0/21IPv42,048US
98.145.48.0/20IPv44,096US
98.145.192.0/19IPv48,192US
98.145.224.0/20IPv44,096US
98.145.240.0/22IPv41,024US
98.145.244.0/23IPv4512US
98.145.246.0/23IPv4512US
98.145.248.0/21IPv42,048US
98.147.0.0/16IPv465,536US
98.148.0.0/14IPv4262,144US
98.152.0.0/18IPv416,384US
98.152.64.0/19IPv48,192US
98.152.96.0/23IPv4512US
98.152.98.0/23IPv4512US
98.152.100.0/22IPv41,024US
98.152.104.0/21IPv42,048US
98.152.112.0/20IPv44,096US
98.152.128.0/17IPv432,768US
98.153.0.0/17IPv432,768US
98.153.128.0/18IPv416,384US
98.153.193.0/24IPv4256US
98.153.194.0/23IPv4512US
98.153.196.0/22IPv41,024US
98.153.200.0/21IPv42,048US
98.153.208.0/20IPv44,096US
98.153.224.0/19IPv48,192US
98.154.0.0/23IPv4512US
98.154.3.0/24IPv4256US
98.154.4.0/22IPv41,024US
98.154.8.0/21IPv42,048US
98.154.16.0/20IPv44,096US
98.154.32.0/19IPv48,192US
98.154.65.0/24IPv4256US
98.154.66.0/23IPv4512US
98.154.68.0/22IPv41,024US
98.154.72.0/22IPv41,024US
98.154.76.0/24IPv4256US
98.154.78.0/23IPv4512US
98.154.80.0/20IPv44,096US
98.154.96.0/20IPv44,096US
98.154.112.0/21IPv42,048US
98.154.120.0/21IPv42,048US
98.154.128.0/17IPv432,768US
98.155.0.0/16IPv465,536US
98.157.128.0/20IPv44,096US
101.60.0.0/17IPv432,768US
101.60.128.0/18IPv416,384US
101.60.192.0/19IPv48,192US
101.60.224.0/20IPv44,096US
101.60.240.0/21IPv42,048US
101.60.248.0/22IPv41,024US
101.60.252.0/23IPv4512US
101.61.0.0/17IPv432,768US
101.61.128.0/18IPv416,384US
101.61.192.0/19IPv48,192US
101.61.224.0/20IPv44,096US
101.61.240.0/21IPv42,048US
101.61.248.0/22IPv41,024US
101.61.252.0/23IPv4512US
101.61.254.0/24IPv4256US
102.129.191.0/24IPv4256US
102.129.247.0/24IPv4256US
104.32.0.0/14IPv4262,144US
104.129.254.0/24IPv4256US
104.172.0.0/14IPv4262,144US
104.224.81.0/24IPv4256US
104.234.122.0/24IPv4256US
104.244.102.0/24IPv4256US
108.178.128.0/18IPv416,384US
130.44.200.0/24IPv4256US
130.44.202.0/24IPv4256US

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