Please consult this page, if you do not know which DNS servers to use.
CloudFlare DNS
Primary: 1.1.1.1
Secondary: 1.0.0.1
Google DNS
Primary: 8.8.8.8
Secondary: 8.8.4.4
Australia
QLD
144.140.70.29
144.140.71.15
144.140.70.16
Westnet (ADSL)
203.21.20.20
203.10.1.9
Canada
Shaw Cable
64.59.144.16
64.59.144.17
Telus(BC)
154.11.128.129
154.11.128.150
154.11.128.1
154.11.128.2
154.11.128.130
209.53.4.150
China
I-Cable
(Hong Kong)
210.80.60.1
210.80.60.2
Italy
Alice
212.216.112.112
212.216.172.62
Malaysia
Schoolnet (ADSL)
202.75.44.18
203.106.3.171
202.75.44.20
Tmnet Streamyx (ADSL)
202.188.0.132
202.188.0.133
202.188.0.147
202.188.0.161
202.188.0.181
202.188.0.182
202.188.1.4
202.188.1.5
202.188.1.23
202.188.1.25
Mexico
Cablemas (Cable 128kbps)
69.44.143.245
200.79.192.3
Nederland
Hetnet
10.0.0.5
10.0.0.2
10.0.0.3
Planet Internet
195.121.1.34
195.121.1.66
New Zealand
Xtra (DSL)
202.27.158.40
202.27.156.72
Paradise (DSL)
203.96.152.4
203.96.152.12
Portugal
NetvisÃÆïÃâÿÃâýo (Cable)
213.228.128.6
213.228.128.5
TVTel
195.22.0.204
195.22.0.205
Sweden
Tele2
130.244.127.161
130.244.127.169
United Kingdom
AOL
205.188.146.145
Blueyonder/Telewest (Cable)
193.38.113.3
194.177.157.4
BTInternet
194.73.73.172
194.73.73.173
194.72.9.44
194.72.9.38 (Cardiff, S.Wales)
194.72.9.39 (Cardiff, S.Wales)
Bulldog Broadband
Ns3.bulldogdsl.com . 83.146.21.5 (South)
Ns4.bulldogdsl.com . 83.146.21.6 (South)
Ns5.bulldogdsl.com . 212.158.248.5 (North)
Ns6.bulldogdsl.com . 212.158.248.6 (North)
Nildram (ADSL)
213.208.106.212
213.208.106.213
NTL (Cable) and Virgin.net (ADSL)
194.168.4.100
194.168.8.100
Pipex (ADSL)
62.241.162.35
62.189.34.83
Silvermead (Satellite, DSL, ISDN)
62.55.96.226
62.55.96.109 (unchecked)
Telewest (Cable)
62.31.176.39
194.117.134.19
Tiscali, Screaming.net, Worldonline, Lineone
212.74.112.66
212.74.112.67
212.74.114.129 (Cambridge)
212.74.114.193 (Cambridge)
Wanadoo UK (ADSL)
195.92.195.94
195.92.195.95
Zen Internet
Primary DNS: 212.23.8.1
Secondary DNS: 212.23.3.1
United States of America
Adelphia
67.21.13.4 Los Angeles, CA
67.21.13.2 Los Angeles, CA
24.48.217.226 Santa Monica, CA
24.48.217.227 Santa Monica, CA
68.168.1.42 Florida
68.168.1.46 Florida
Bellsouth Fast access DSL:
Georgia
205.152.37.23
205.152.37.24
205.152.37.25
205.152.144.24
205.152.144.25
Charter Comms (Cable)
68.116.46.70
Comcast (pick the nearest!)
68.87.66.196 Comcast (national) Primary DNS Server.
68.87.64.196 Comcast Secondary DNS Server.
68.57.32.5 (Virginia)
68.57.32.6 (Virginia)
216.148.227.68 (Denver, Colorado)
204.127.202.4 (Denver, Colorado)
68.42.244.5 (Taylor, Michigan)
68.42.244.6 (Taylor, Michigan)
68.62.160.5 (Huntsville, Alabama)
68.62.160.6 (Huntsville, Alabama)
68.87.96.3 (Pennsylvania)
68.87.96.4 (Pennsylvania)
Cox HSI (Cable)
68.12.16.25 (Oklahoma - Primary)
68.12.16.30 (Oklahoma - Secondary)
68.2.16.30 (Oklahoma - Tertiary)
Cox.net
68.10.16.25
68.10.16.30
68.9.16.30
Earthlink - seem to be shared by Cable and DSL users in several states. Georgia and Florida confirmed.
207.69.188.187
207.69.188.186
207.69.188.185
209.86.63.217 (Cable) - Charlotte, NC
Harrisonville Telephone Company (HTC)
216.114.114.130 (Illinois)
216.114.114.132 (Illinois)
Horry Telephone Coop
66.153.128.98 (Horry County, South Carolina)
66.153.162.98 (Horry County, South Carolina)
ORSC Public Access DNS Nameservers (Anyone can use these, no matter what ISP)
199.166.24.253
199.166.27.253
199.166.28.10
199.166.29.3
199.166.31.3
195.117.6.25
204.57.55.100
Roadrunner (Cable)
24.25.195.1 (San Diego, CA)
24.25.195.2 (San Diego, CA)
24.25.195.3 (San Diego, CA)
SBC Yahoo DSL
206.13.31.13
206.13.28.60
206.13.31.5
206.13.28.31
Speakeasy (pick any two!)
66.93.87.2 (Washington state and Oregon)
216.231.41.2 (Washington DC - probably)
216.254.95.2 (NY, Massachusetts and Pennsylvania)
64.81.45.2 (Los Angeles, California)
64.81.111.2 (Denver, Colorado)
64.81.127.2 (Dallas, Texas)
64.81.79.2 (Sacramento, California)
64.81.159.2 (Baltimore and Washington DC)
66.92.64.2 (Boston, Massachusetts)
66.92.224.2 (Philadelphia)
66.92.159.2 (Washington DC)
216.27.175.2 (Atlanta, Georgia. Serves Florida too)
Sprintlink (nationwide)
204.117.214.10
199.2.252.10
204.97.212.10
TimeWarner
24.93.1.119 (Rochester, NY)
Unicom
216.104.64.5 (Grants Pass, OR)
216.104.72.5 (Portland, OR)
FrontierNet / Citlink / New North DNS addresses:
66.133.170.2 (Rochester, NY)
170.215.255.114 (Rochester, NY)
216.67.192.3 (Arizona)
207.173.225.3 (Arizona)
207.173.225.3 (California)
216.67.192.3 (California)
170.215.255.114 (New York (areas other than Rochester))
66.133.170.2 (New York (areas other than Rochester))
170.215.184.3 (West Virginia)
170.215.126.3 (West Virginia)
170.215.126.3 (Tennessee, Georgia)
170.215.184.3 (Tennessee, Georgia)
67.50.135.146 (Illinois)
66.133.191.35 (Illinois)
66.133.191.35 (Wisconsin, Minnesota, Iowa, North Dakota and Nebraska)
170.215.255.114 (Wisconsin, Minnesota, Iowa, North Dakota and Nebraska)
Suddenlink DNS Numbers
209.55.0.110
209.55.1.220
Verizon (Level3) - these are not restricted to Verizon customers
4.2.2.1
4.2.2.2
4.2.2.3
4.2.2.4
4.2.2.5
4.2.2.6
Wave Broadband
24.113.32.29
24.113.32.30