asn.dev

Address space

AS21508 COMCAST-21508

IPv4 prefixes 141 689K addresses
IPv6 prefixes 71
Most common size /24 IPv4
Flagged 0

Shape

Prefix sizes

IPv4
/16
/16: 3
3
/17
/17: 2
2
/18
/18: 6
6
/19
/19: 21
21
/20
/20: 24
24
/21
/21: 12
12
/22
/22: 14
14
/23
/23: 17
17
/24
/24: 42
42

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
/26
/26: 2
2
/32
/32: 2
2
/44
/44: 2
2
/47
/47: 2
2
/48
/48: 63
63

Geography

Where the space lands

CountryNamePrefixes
USUnited States of America212

Inventory

All prefixes

212 total
PrefixFamilyAddressesCountryFlags
23.25.96.0/19IPv48,192US
23.25.186.0/23IPv4512US
23.31.96.0/20IPv44,096US
24.124.151.0/24IPv4256US
24.124.162.0/23IPv4512US
24.124.248.0/21IPv42,048US
24.131.0.0/20IPv44,096US
50.73.8.0/22IPv41,024US
50.73.224.0/20IPv44,096US
50.77.72.0/21IPv42,048US
50.78.232.0/21IPv42,048US
50.184.128.0/19IPv48,192US
50.186.32.0/19IPv48,192US
50.189.192.0/18IPv416,384US
50.193.246.0/23IPv4512US
50.199.16.0/20IPv44,096US
50.204.101.0/24IPv4256US
50.205.217.0/24IPv4256US
50.210.0.0/20IPv44,096US
50.211.32.0/19IPv48,192US
50.215.32.0/19IPv48,192US
50.216.229.0/24IPv4256US
50.217.1.0/24IPv4256US
50.217.207.0/24IPv4256US
50.218.47.0/24IPv4256US
50.228.113.0/24IPv4256US
50.229.113.0/24IPv4256US
50.229.114.0/24IPv4256US
50.235.34.0/24IPv4256US
50.240.80.0/20IPv44,096US
50.242.32.0/19IPv48,192US
50.245.224.0/19IPv48,192US
50.251.112.0/20IPv44,096US
50.253.208.0/20IPv44,096US
64.139.66.0/24IPv4256US
64.139.70.0/24IPv4256US
64.139.79.0/24IPv4256US
64.139.90.0/24IPv4256US
66.208.224.0/23IPv4512US
66.208.230.0/24IPv4256US
66.208.234.0/24IPv4256US
67.163.96.0/19IPv48,192US
67.166.160.0/19IPv48,192US
67.172.192.0/19IPv48,192US
67.174.64.0/20IPv44,096US
67.187.0.0/19IPv48,192US
68.85.70.0/23IPv4512US
68.85.214.0/24IPv4256US
68.85.226.0/24IPv4256US
68.86.14.0/24IPv4256US
68.86.24.0/24IPv4256US
68.86.124.0/22IPv41,024US
68.86.172.0/22IPv41,024US
68.86.200.0/24IPv4256US
68.87.3.0/24IPv4256US
69.139.165.0/24IPv4256US
69.139.186.0/24IPv4256US
69.139.206.0/24IPv4256US
69.139.223.0/24IPv4256US
69.241.48.0/23IPv4512US
69.241.85.0/24IPv4256US
69.243.208.0/20IPv44,096US
69.244.224.0/20IPv44,096US
69.252.18.0/23IPv4512US
70.88.24.0/23IPv4512US
70.88.164.0/24IPv4256US
70.88.168.0/23IPv4512US
70.88.184.0/21IPv42,048US
70.89.232.0/21IPv42,048US
70.91.162.0/24IPv4256US
71.24.32.0/19IPv48,192US
71.56.160.0/19IPv48,192US
71.57.192.0/19IPv48,192US
71.62.0.0/16IPv465,536US
71.63.0.0/17IPv432,768US
71.197.0.0/20IPv44,096US
71.206.128.0/18IPv416,384US
71.207.128.0/19IPv48,192US
74.92.186.0/23IPv4512US
74.92.255.0/24IPv4256US
74.93.116.0/22IPv41,024US
74.94.208.0/21IPv42,048US
74.95.96.0/22IPv41,024US
75.75.0.0/18IPv416,384US
75.75.64.0/21IPv42,048US
75.75.80.0/20IPv44,096US
75.75.96.0/19IPv48,192US
75.144.34.0/23IPv4512US
75.145.196.0/22IPv41,024US
75.145.204.0/22IPv41,024US
75.145.240.0/21IPv42,048US
75.146.16.0/20IPv44,096US
75.146.87.0/24IPv4256US
75.150.48.0/20IPv44,096US
76.26.64.0/19IPv48,192US
76.27.160.0/19IPv48,192US
76.104.0.0/17IPv432,768US
76.111.176.0/20IPv44,096US
76.120.192.0/18IPv416,384US
76.123.0.0/18IPv416,384US
96.75.192.0/19IPv48,192US
96.82.0.0/20IPv44,096US
96.82.24.0/21IPv42,048US
96.84.224.0/20IPv44,096US
96.85.32.0/20IPv44,096US
96.89.0.0/19IPv48,192US
96.94.208.0/20IPv44,096US
96.96.176.0/21IPv42,048US
96.108.106.0/23IPv4512US
96.108.129.0/24IPv4256US
96.108.130.0/23IPv4512US
96.108.140.0/23IPv4512US
96.109.65.0/24IPv4256US
96.109.165.0/24IPv4256US
96.109.200.0/22IPv41,024US
96.110.123.0/24IPv4256US
96.110.200.0/22IPv41,024US
96.114.56.0/23IPv4512US
96.124.244.0/22IPv41,024US
96.208.0.0/21IPv42,048US
96.216.16.0/22IPv41,024US
96.216.88.0/22IPv41,024US
141.104.0.0/16IPv465,536US
157.240.148.0/24IPv4256US
162.151.58.0/23IPv4512US
162.151.162.0/23IPv4512US
162.151.255.0/24IPv4256US
173.14.112.0/20IPv44,096US
173.14.193.0/24IPv4256US
173.15.192.0/20IPv44,096US
173.163.192.0/20IPv44,096US
173.167.32.0/20IPv44,096US
173.167.48.0/21IPv42,048US
173.167.80.0/22IPv41,024US
173.242.174.0/24IPv4256US
174.53.64.0/19IPv48,192US
174.179.0.0/16IPv465,536US
184.115.0.0/18IPv416,384US
198.90.112.0/22IPv41,024US
204.194.47.0/24IPv4256US
205.223.19.0/24IPv4256US
2001:558:180::/44IPv6—US
2001:558:230::/44IPv6—US
2001:558:501e::/48IPv6—US
2001:558:6023::/48IPv6—US
2001:558:6036::/48IPv6—US
2001:558:701a::/48IPv6—US
2001:558:a006::/48IPv6—US
2001:558:fe30::/48IPv6—US
2001:559:8a::/48IPv6—US
2001:559:c0::/48IPv6—US
2001:559:f7::/48IPv6—US
2001:559:220::/48IPv6—US
2001:559:243::/48IPv6—US
2001:559:280::/48IPv6—US
2001:559:37d::/48IPv6—US
2001:559:3ac::/48IPv6—US
2001:559:3b9::/48IPv6—US
2001:559:3c8::/48IPv6—US
2001:559:40a::/48IPv6—US
2001:559:49a::/47IPv6—US
2001:559:53c::/48IPv6—US
2001:559:5c9::/48IPv6—US
2001:559:5db::/48IPv6—US
2001:559:72b::/48IPv6—US
2001:559:73c::/48IPv6—US
2001:559:788::/48IPv6—US
2001:559:78a::/48IPv6—US
2001:559:79d::/48IPv6—US
2001:559:79e::/48IPv6—US
2001:559:7a7::/48IPv6—US
2001:559:7db::/48IPv6—US
2001:559:804c::/48IPv6—US
2001:559:81bf::/48IPv6—US
2001:559:81d7::/48IPv6—US
2001:559:81d8::/48IPv6—US
2001:559:8201::/48IPv6—US
2001:559:82fd::/48IPv6—US
2001:559:833e::/48IPv6—US
2001:559:8416::/48IPv6—US
2001:559:841c::/48IPv6—US
2001:559:8445::/48IPv6—US
2001:559:8535::/48IPv6—US
2001:559:85c1::/48IPv6—US
2001:559:85ff::/48IPv6—US
2001:559:8604::/48IPv6—US
2001:559:871a::/48IPv6—US
2001:559:875f::/48IPv6—US
2001:559:8773::/48IPv6—US
2001:559:87b2::/48IPv6—US
2001:559:c071::/48IPv6—US
2001:559:c0f6::/47IPv6—US
2001:559:c10a::/48IPv6—US
2001:559:c174::/48IPv6—US
2001:559:c1a5::/48IPv6—US
2001:559:c1ca::/48IPv6—US
2001:559:c28f::/48IPv6—US
2001:559:c290::/48IPv6—US
2001:559:c2a7::/48IPv6—US
2001:559:c344::/48IPv6—US
2001:559:c3e9::/48IPv6—US
2001:559:c458::/48IPv6—US
2001:559:c45f::/48IPv6—US
2001:559:c460::/48IPv6—US
2001:559:c4db::/48IPv6—US
2001:559:c4f6::/48IPv6—US
2001:559:c515::/48IPv6—US
2001:559:c538::/48IPv6—US
2601:5c0::/26IPv6—US
2603:25c0::/26IPv6—US
2603:3021::/32IPv6—US
2603:308a::/32IPv6—US