159.134.0.1
159.134.0.2
213.94.190.236
213.94.190.194
40 internet service providers listed — 38 with known DNS server addresses. ISP DNS servers are typically private and only work for that ISP's customers.
We list ISP DNS servers from 240 countries, with a total of 4,367 entries. Browse all countries
159.134.0.1
159.134.0.2
213.94.190.236
213.94.190.194
89.101.160.4
89.101.160.5
89.19.64.164
89.19.64.36
159.134.0.1
159.134.0.2
62.40.32.34
78.137.182.110
84.203.162.227
80.93.18.196
194.165.165.137
194.165.165.135
84.203.254.34
84.203.255.34
18.202.133.245
18.202.64.212
18.203.229.97
18.203.64.139
3.248.2.249
3.255.55.103
34.240.24.71
34.241.157.106
194.26.213.110
194.26.213.115
194.26.213.134
194.26.213.135
194.26.213.149
194.26.213.157
194.26.213.172
194.26.213.178
196.196.192.130
196.196.192.131
196.196.192.132
196.196.192.133
196.196.192.134
196.196.192.135
196.196.192.136
196.196.192.137
209.206.12.1
209.206.12.10
209.206.12.100
209.206.12.101
209.206.12.102
209.206.12.103
209.206.12.104
209.206.12.105
185.108.128.14
185.108.128.17
185.108.128.29
185.108.129.71
185.108.130.131
185.108.130.132
185.108.130.133
217.115.112.105
185.224.196.119
185.224.196.122
185.224.196.127
185.224.196.130
185.224.196.138
185.224.196.147
185.224.196.212
185.224.196.213
107.150.20.102
107.150.20.25
107.150.20.87
107.175.187.133
107.175.187.134
107.175.187.135
107.175.187.212
107.175.187.3
192.165.239.108
192.165.239.110
192.165.239.12
192.165.239.137
192.165.239.37
192.165.239.7
192.165.239.71
192.165.84.10
190.180.144.133
190.180.144.240
190.180.144.44
190.180.144.47
190.180.144.50
190.180.144.51
190.180.144.54
190.180.145.182
5.83.243.116
5.83.243.144
5.83.243.147
5.83.243.192
5.83.243.53
5.83.243.68
5.83.248.207
5.83.248.210
131.186.124.109
131.186.124.251
151.104.188.113
151.104.189.175
151.104.189.178
151.104.189.236
151.104.189.84
151.104.189.94
149.33.28.191
149.33.28.200
38.180.151.109
38.180.151.117
38.180.151.123
38.180.151.132
38.180.151.160
38.180.151.171
185.43.232.166
185.43.232.218
185.43.232.220
185.43.232.221
185.43.232.222
185.43.232.223
185.43.232.224
185.43.232.225
109.106.96.2
109.106.96.3
80.93.17.158
80.93.17.197
80.93.26.11
80.93.26.13
84.203.136.244
84.203.136.245
84.39.232.10
91.103.0.2
91.103.2.133
91.103.2.134
91.223.9.9
185.57.117.104
185.57.117.168
185.57.117.192
185.60.124.52
80.233.0.39
80.233.100.100
80.233.100.116
80.233.100.168
80.233.101.14
80.233.101.158
80.233.101.195
217.79.214.243
217.79.214.253
87.252.199.118
87.252.199.150
87.252.204.33
87.252.214.106
87.252.214.84
87.252.214.85
2.19.176.101
2.19.176.103
2.19.176.116
2.19.176.117
2.19.176.125
2.19.176.126
2.19.176.133
2.19.176.135
119.8.208.91
119.8.208.92
119.8.222.10
119.8.222.11
119.8.222.12
119.8.222.13
119.8.222.14
119.8.222.18
13.69.152.98
13.70.197.189
13.74.190.64
13.74.63.250
13.79.134.97
137.135.165.13
137.135.203.128
138.91.58.105
159.134.237.150
159.134.237.65
82.141.240.177
82.141.240.178
159.134.0.15
159.134.0.178
159.134.0.42
159.134.0.74
89.101.128.26
109.255.108.121
109.255.108.88
109.255.134.147
109.255.134.251
109.255.15.149
109.255.161.101
109.255.168.139
109.70.208.133
109.70.211.25
109.70.211.26
109.70.211.27
109.70.214.129
109.76.13.137
109.76.170.93
109.76.246.234
185.146.180.171
185.146.180.43
192.111.39.10
192.111.39.100
192.111.39.11
192.111.39.111
192.111.39.112
193.120.1.30
144.2.242.21
144.2.243.138
185.156.196.93
5.149.175.101
5.149.175.102
5.149.175.98
5.149.175.99
62.146.164.61
185.231.207.120
185.231.207.128
185.231.207.138
185.231.207.144
185.231.207.165
185.231.207.181
185.231.207.184
185.231.207.188
85.91.1.128
85.91.1.19
212.17.32.1
212.17.32.2
212.17.32.25
212.17.32.3
213.159.130.104
213.159.130.108
51.182.202.92
51.186.222.95
51.186.57.6
51.186.79.160
51.199.248.135
51.199.248.140
51.199.248.148
51.199.248.68
134.226.112.8
134.226.112.9
140.203.201.102
140.203.202.116
149.157.246.10
149.157.246.30
87.44.2.235
87.44.34.66
137.191.230.125
137.191.234.19
137.191.234.3
137.191.224.10
137.191.224.12
137.191.224.140
137.191.224.142
137.191.227.254
For most users in Ireland, the answer is no. ISP DNS servers are convenient because they work automatically, but they come with significant drawbacks. Many ISPs log every domain you visit, some sell aggregated browsing data to advertisers, and others practice NXDOMAIN hijacking — redirecting failed lookups to search pages filled with ads. ISP DNS servers also tend to be slower than dedicated public resolvers like Cloudflare or Google, especially during peak hours when they are overloaded with traffic from millions of customers.
Switching to a public DNS provider gives you better speed, stronger privacy, DNSSEC validation to prevent spoofing attacks, and the option for encrypted DNS via DoH or DoT. The change takes less than two minutes on any device.
Eir (formerly Eircom) operates its own DNS resolvers for customers. The specific IP addresses are listed above. These servers only work on Eir (formerly Eircom)'s network and may change without notice. For a reliable alternative, consider public DNS providers like Cloudflare (1.1.1.1) or Google (8.8.8.8).
Some ISPs in Ireland practice NXDOMAIN hijacking, redirecting failed DNS lookups to their own search or advertising pages instead of returning a proper error. You can test this using our DNS Privacy Check tool. If your ISP hijacks DNS, switching to a public resolver eliminates this.
On Windows: Settings > Network > your adapter > DNS > set to Manual and enter 1.1.1.1 and 1.0.0.1. On Mac: System Settings > Network > DNS. On your router: access the admin panel (usually 192.168.1.1) and change DNS in WAN/Internet settings. This overrides your ISP's DNS for all devices.
Often yes. ISP DNS servers can be overloaded during peak hours, while public DNS providers like Cloudflare and Google operate massive anycast networks optimised for speed. Use our DNS Gaming Benchmark to test latency from your actual location and see which is fastest for you.
NXDOMAIN hijacking occurs when your ISP redirects non-existent domain lookups to their own servers instead of returning the standard NXDOMAIN error. This can break applications, interfere with email validation, and expose your browsing to tracking. Run our DNS Privacy Check to detect if your ISP does this.