asn.dev

Address space

AS3300 BT

IPv4 prefixes 103 513K addresses
IPv6 prefixes 21
Most common size /24 IPv4
Flagged 0

Shape

Prefix sizes

IPv4
/16
/16: 2
2
/17
/17: 4
4
/18
/18: 7
7
/19
/19: 6
6
/20
/20: 7
7
/21
/21: 14
14
/22
/22: 12
12
/23
/23: 18
18
/24
/24: 33
33

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
/33
/33: 1
1
/34
/34: 3
3
/35
/35: 2
2
/36
/36: 4
4
/37
/37: 2
2
/38
/38: 3
3
/39
/39: 5
5
/40
/40: 1
1

Geography

Where the space lands

CountryNamePrefixes
GBUnited Kingdom124

Inventory

All prefixes

124 total
PrefixFamilyAddressesCountryFlags
61.14.0.0/20IPv44,096GB
61.14.16.0/20IPv44,096GB
61.14.32.0/23IPv4512GB
61.14.34.0/24IPv4256GB
61.14.35.0/24IPv4256GB
61.14.36.0/24IPv4256GB
61.14.37.0/24IPv4256GB
61.14.38.0/23IPv4512GB
61.14.40.0/21IPv42,048GB
61.14.48.0/22IPv41,024GB
61.14.52.0/24IPv4256GB
61.14.53.0/24IPv4256GB
61.14.54.0/23IPv4512GB
61.14.56.0/21IPv42,048GB
63.250.128.0/22IPv41,024GB
63.250.132.0/24IPv4256GB
63.250.133.0/24IPv4256GB
63.250.134.0/23IPv4512GB
63.250.136.0/21IPv42,048GB
63.250.144.0/24IPv4256GB
63.250.145.0/24IPv4256GB
63.250.146.0/23IPv4512GB
63.250.148.0/22IPv41,024GB
63.250.152.0/21IPv42,048GB
63.250.160.0/22IPv41,024GB
63.250.164.0/23IPv4512GB
63.250.166.0/23IPv4512GB
63.250.168.0/21IPv42,048GB
63.250.176.0/21IPv42,048GB
63.250.184.0/22IPv41,024GB
63.250.188.0/23IPv4512GB
63.250.190.0/23IPv4512GB
72.29.128.0/21IPv42,048GB
72.29.136.0/21IPv42,048GB
136.238.168.0/24IPv4256GB
136.238.185.0/24IPv4256GB
136.238.187.0/24IPv4256GB
136.238.229.0/24IPv4256GB
136.238.232.0/24IPv4256GB
136.238.238.0/23IPv4512GB
136.238.240.0/23IPv4512GB
136.238.243.0/24IPv4256GB
185.249.5.0/24IPv4256GB
185.249.6.0/24IPv4256GB
192.92.18.0/23IPv4512GB
192.92.20.0/22IPv41,024GB
192.92.24.0/21IPv42,048GB
192.92.32.0/19IPv48,192GB
192.92.80.0/23IPv4512GB
192.92.82.0/24IPv4256GB
192.157.130.0/23IPv4512GB
192.157.132.0/22IPv41,024GB
192.157.136.0/21IPv42,048GB
192.157.144.0/20IPv44,096GB
192.157.160.0/23IPv4512GB
192.237.64.0/18IPv416,384GB
194.33.52.0/24IPv4256GB
195.206.69.0/24IPv4256GB
195.206.70.0/24IPv4256GB
198.137.75.0/24IPv4256GB
198.178.237.0/24IPv4256GB
198.178.239.0/24IPv4256GB
198.207.64.0/20IPv44,096GB
198.207.80.0/22IPv41,024GB
198.207.84.0/22IPv41,024GB
198.207.88.0/21IPv42,048GB
198.207.96.0/19IPv48,192GB
199.6.64.0/18IPv416,384GB
203.187.128.0/19IPv48,192GB
204.52.187.0/24IPv4256GB
204.79.84.0/24IPv4256GB
204.140.64.0/18IPv416,384GB
204.231.0.0/17IPv432,768GB
204.231.128.0/18IPv416,384GB
205.248.0.0/16IPv465,536GB
206.182.0.0/17IPv432,768GB
206.182.128.0/22IPv41,024GB
206.182.132.0/23IPv4512GB
206.182.134.0/24IPv4256GB
206.182.135.0/24IPv4256GB
206.182.136.0/21IPv42,048GB
206.182.144.0/20IPv44,096GB
206.182.160.0/22IPv41,024GB
206.182.164.0/24IPv4256GB
206.182.165.0/24IPv4256GB
206.182.166.0/23IPv4512GB
206.182.168.0/21IPv42,048GB
206.182.176.0/20IPv44,096GB
206.182.192.0/18IPv416,384GB
207.117.0.0/16IPv465,536GB
207.209.0.0/18IPv416,384GB
207.209.64.0/19IPv48,192GB
207.209.96.0/19IPv48,192GB
207.209.128.0/17IPv432,768GB
209.28.0.0/17IPv432,768GB
209.28.128.0/19IPv48,192GB
209.28.160.0/21IPv42,048GB
209.28.168.0/22IPv41,024GB
209.28.172.0/23IPv4512GB
209.28.174.0/24IPv4256GB
209.28.175.0/24IPv4256GB
209.28.176.0/20IPv44,096GB
209.28.192.0/18IPv416,384GB
2402:fb00::/34IPv6—GB
2402:fb00:4000::/34IPv6—GB
2402:fb00:8200::/39IPv6—GB
2402:fb00:8600::/39IPv6—GB
2402:fb00:8900::/40IPv6—GB
2402:fb00:8a00::/39IPv6—GB
2402:fb00:8c00::/38IPv6—GB
2402:fb00:9000::/36IPv6—GB
2402:fb00:a000::/35IPv6—GB
2402:fb00:c400::/38IPv6—GB
2402:fb00:c800::/37IPv6—GB
2402:fb00:d000::/36IPv6—GB
2402:fb00:e000::/35IPv6—GB
2606:f100::/33IPv6—GB
2606:f100:8000::/34IPv6—GB
2606:f100:c000::/36IPv6—GB
2606:f100:d200::/39IPv6—GB
2606:f100:e000::/38IPv6—GB
2606:f100:e600::/39IPv6—GB
2606:f100:e800::/37IPv6—GB
2606:f100:f000::/36IPv6—GB