no.rdns.ukservers.com content spammed me, so I researched them. They have a sister host name, no.rdns-yet.ukservers.com, with very much the same ip ranges. See for yourself. They are industrious in their use of IPs.
no.rdns.ukservers.com
5.101.138.140 5.101.136.0 – 5.101.151.255 5.101.136.0/21
5.101.142.102
5.101.145.22
5.101.146.130
31.132.3.176 31.132.3.0/24
31.132.3.239
37.9.62.107 37.9.62.0/24
37.9.62.221
37.9.62.36
37.9.62.41
37.9.62.6
37.9.62.96
54.213.200.95
77.74.192.190 77.74.192.0 – 77.74.199.255 77.74.192.0/21
77.74.194.62
77.74.195.112
77.74.196.231
77.75.122.146
78.110.160.140 78.110.160.0 – 78.110.175.255 78.110.160.0/20
78.110.160.234
78.110.169.178
78.110.169.210
78.110.174.241
78.110.175.202
78.157.192.57 78.157.192.0/24
78.157.192.72
94.46.207.1
94.229.65.56 94.229.64.0 – 94.229.81.255 94.229.64.0/20
94.229.65.171
94.229.67.15
94.229.67.16
94.229.67.33
94.229.67.57
94.229.72.115
94.229.72.116
94.229.72.117
94.229.72.135
94.229.74.89
94.229.75.3
94.229.75.9
94.229.76.195
94.229.76.200
94.229.78.60
94.229.79.3
178.159.5.106 178.159.0.0 – 178.159.15.255 178.159.0.0/20
178.159.9.126
178.159.9.251
178.159.11.10
178.159.11.243
185.103.96.143
185.109.170.8
no.rdns-yet.ukservers.com
5.101.137.55 5.101.136.0 – 5.101.151.255 5.101.136.0/21
5.101.140.237 3
5.101.146.130
5.101.168.66 5.101.168.0/24
5.101.168.108
31.132.3.154
37.9.62.44 37.9.62.0/24
37.9.62.74
37.9.62.107
54.213.200.95
77.74.192.190 77.74.192.0 – 77.74.199.255 77.74.192.0/21
77.74.193.195
77.74.193.206
77.74.193.244
77.74.194.169
77.74.194.169
77.74.195.155
77.74.195.183
77.75.122.51 3 77.75.120.0 – 77.75.127.255 77.75.120.0/21
77.75.125.104
77.75.127.251
78.110.165.205 78.110.160.0 – 78.110.167.255 78.110.160.0/20
78.110.169.178
78.110.173.30
78.157.199.27
78.157.212.117 78.157.192.0 – 78.157.223.0/19 78.157.192.0/19
78.157.212.121
78.157.217.198
78.157.218.127
94.229.64.211 94.229.64.0 – 94.229.81.255 94.229.64.0/20
94.229.65.171
94.229.65.172
94.229.65.183
94.229.65.211
94.229.69.252
94.229.73.157
94.229.74.9
94.229.74.89
94.229.74.178
94.229.79.20
94.229.79.146
178.159.1.222 178.159.0.0 – 178.159.15.255 178.159.0.0/20
178.159.7.8
178.159.7.57
185.17.26.127
185.17.27.221