Skip to content
ipcheckerpro
Sponsored AccsZone — accounts produced in-house

Autonomous systems

AS2856 BT-UK-AS BTnet UK Regional network

Residential🇬🇧 United KingdomAS2856
IPv4 prefixes
423
IPv4 addresses
13,850,112
IPv6 prefixes
5
Registered
2002-08-30
whois.ripe.net

At a glance

Network type
Residential
Registry name
BT-UK-AS AS2856
technical
BTnet Support
registrant
BTNET-INFRA-MNT
administrative
BT IP Address Admin
registrant
British Telecommunications Limited

WHOIS → · ASN lookup →

IPv4 prefixes

Page 1
CIDRFirst addressLast addressAddresses
5.35.192.0/215.35.192.05.35.199.2552,048
5.80.0.0/155.80.0.05.81.255.255131,072
5.181.136.0/245.181.136.05.181.136.255256
9.151.0.0/199.151.0.09.151.31.2558,192
9.151.208.0/209.151.208.09.151.223.2554,096
9.151.248.0/219.151.248.09.151.255.2552,048
9.232.192.0/189.232.192.09.232.255.25516,384
9.233.48.0/209.233.48.09.233.63.2554,096
9.237.96.0/199.237.96.09.237.223.25532,768
15.145.20.0/2215.145.20.015.145.23.2551,024
23.26.70.0/2423.26.70.023.26.70.255256
23.26.108.0/2423.26.108.023.26.108.255256
23.26.117.0/2423.26.117.023.26.117.255256
23.26.131.0/2423.26.131.023.26.131.255256
23.26.192.0/2423.26.192.023.26.192.255256
23.27.32.0/2123.27.32.023.27.40.2552,304
23.27.102.0/2323.27.102.023.27.108.2551,792
23.230.82.0/2323.230.82.023.230.83.255512
23.230.242.0/2423.230.242.023.230.242.255256
23.230.252.0/2423.230.252.023.230.252.255256
31.48.0.0/1331.48.0.031.55.255.255524,288
31.90.0.0/1531.90.0.031.94.255.255327,680
31.96.0.0/1631.96.0.031.96.255.25565,536
31.100.0.0/1431.100.0.031.104.255.255327,680
31.106.0.0/1531.106.0.031.107.255.255131,072
31.112.0.0/1331.112.0.031.124.255.255851,968
31.126.0.0/1531.126.0.031.127.255.255131,072
31.130.240.0/2331.130.240.031.130.241.255512
37.44.229.0/2437.44.229.037.44.231.255768
37.97.112.0/2237.97.112.037.97.115.2551,024
37.143.3.0/2437.143.3.037.143.3.255256
37.230.61.0/2437.230.61.037.230.61.255256
40.27.28.0/2440.27.28.040.27.28.255256
40.27.72.0/2440.27.72.040.27.72.255256
45.39.116.0/2445.39.116.045.39.116.255256
45.39.188.0/2445.39.188.045.39.188.255256
45.149.7.0/2445.149.7.045.149.7.255256
45.149.168.0/2245.149.168.045.149.171.2551,024
46.68.0.0/1846.68.0.046.68.66.25517,152
46.68.67.0/2446.68.67.046.69.255.255113,920
46.248.96.0/2246.248.96.046.248.99.2551,024
46.248.102.0/2346.248.102.046.248.105.2551,024
46.248.120.0/2246.248.120.046.248.123.2551,024
50.117.7.0/2450.117.7.050.117.7.255256
50.117.51.0/2450.117.51.050.117.51.255256
50.118.154.0/2350.118.154.050.118.155.255512
51.14.0.0/1651.14.0.051.14.255.25565,536
51.64.32.0/2451.64.32.051.64.32.255256
51.146.44.0/2251.146.44.051.146.47.2551,024
51.146.128.0/2251.146.128.051.146.131.2551,024
51.146.136.0/2251.146.136.051.146.139.2551,024
51.146.235.0/2451.146.235.051.146.235.255256
51.146.252.0/2251.146.252.051.146.255.2551,024
51.149.18.0/2351.149.18.051.149.19.255512
51.194.36.0/2351.194.36.051.194.37.255512
51.194.100.0/2251.194.100.051.194.103.2551,024
51.230.0.0/1751.230.0.051.230.127.25532,768
51.230.255.0/2451.230.255.051.230.255.255256
51.241.3.0/2451.241.3.051.241.3.255256
51.241.201.0/2451.241.201.051.241.201.255256
62.6.0.0/1562.6.0.062.7.255.255131,072
62.172.8.0/2162.172.8.062.172.172.25542,240
62.172.174.0/2362.172.174.062.172.255.25520,992
62.192.124.0/2362.192.124.062.192.125.255512
62.239.0.0/1662.239.0.062.239.255.25565,536
62.244.11.0/2462.244.11.062.244.12.255512
62.244.29.0/2462.244.29.062.244.29.255256
62.244.36.0/2362.244.36.062.244.37.255512
62.244.41.0/2462.244.41.062.244.41.255256
62.244.43.0/2462.244.43.062.244.43.255256
62.244.45.0/2462.244.45.062.244.45.255256
62.244.56.0/2462.244.56.062.244.56.255256
64.205.136.0/2264.205.136.064.205.139.2551,024
64.205.144.0/2264.205.144.064.205.147.2551,024
72.9.180.0/2272.9.180.072.9.183.2551,024
77.90.135.0/2477.90.135.077.90.135.255256
77.90.138.0/2477.90.138.077.90.138.255256
77.90.145.0/2477.90.145.077.90.145.255256
77.90.151.0/2477.90.151.077.90.151.255256
77.90.153.0/2477.90.153.077.90.153.255256
77.90.164.0/2477.90.164.077.90.164.255256
77.90.184.0/2477.90.184.077.90.184.255256
77.94.224.0/2477.94.224.077.94.224.255256
78.105.97.0/2478.105.97.078.105.97.255256
78.105.136.0/2278.105.136.078.105.139.2551,024
78.105.151.0/2478.105.151.078.105.151.255256
78.105.175.0/2478.105.175.078.105.175.255256
78.105.179.0/2478.105.179.078.105.179.255256
78.105.188.0/2478.105.188.078.105.188.255256
78.105.191.0/2478.105.191.078.105.191.255256
78.105.194.0/2478.105.194.078.105.194.255256
78.105.198.0/2478.105.198.078.105.198.255256
78.105.200.0/2478.105.200.078.105.200.255256
78.105.202.0/2478.105.202.078.105.202.255256
79.132.64.0/2379.132.64.079.132.65.255512
79.139.52.0/2279.139.52.079.139.55.2551,024
80.81.58.0/2480.81.58.080.81.58.255256
81.128.0.0/1181.128.0.081.159.255.2552,097,152
81.161.52.0/2281.161.52.081.161.55.2551,024
82.38.9.0/2482.38.9.082.38.9.255256
More prefixes

IPv6 prefixes

5
2001:4878:c259::/482a00:2380::/252a01:4c8::/292a02:ee80:4176::/472a03:1e82:90ff::/48
Sponsored
Advertise here 336×280 large rectangle · 728×90 on wide screens