Public DNS Server List

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DNS servers in United States

This list of public and free DNS servers is checked continuously. Read how to change your DNS server settings .

The table below is limited to the 100 recently checked servers.

IPv4/IPv6 Address Location Software / Version Checked at State Reliability Whois
199.45.32.43
home1.bellatlantic.net.
Hudson Valid valid 3 % Whois
151.203.0.84
boston1-qwest.bellatlantic.net.
Valid valid 97 % Whois
151.203.0.85
boston2-qwest.bellatlantic.net.
Valid valid 97 % Whois
199.45.32.37
world1.bellatlantic.net.
Valid valid 3 % Whois
199.45.32.38
nsdc.bellatlantic.net.
Hudson Valid valid 3 % Whois
199.45.32.40
legacy-ns1.bellatlantic.net.
Valid valid 3 % Whois
151.197.0.38
nsphil.bellatlantic.net.
Valid valid 3 % Whois
151.197.0.39
home4.bellatlantic.net.
Valid valid 3 % Whois
151.202.0.85
nyc2-qwest.bellatlantic.net.
New York Valid valid 97 % Whois
45.33.12.13
li966-13.members.linode.com.
Dallas PowerDNS Recursor 3.6.2 (jenkins@autotest.powerdns.com built 20150723142242 buildd@lgw01-43.buildd) Valid valid 97 % Whois
45.33.81.76
li1027-76.members.linode.com.
Newark PowerDNS Recursor 3.6.2 (jenkins@autotest.powerdns.com built 20150723142242 buildd@lgw01-43.buildd) Valid valid 90 % Whois
216.138.97.246
ns1.gtt.net.
Keller Valid valid 90 % Whois
172.98.193.42
ns0.backplanedns.org.
Rochester 9.10.3-P4-Debian Valid valid 100 % Whois
192.211.0.10 Valid valid DNSSEC 97 % Whois
2606:ed00:2:babe::10 Wilmington Valid valid DNSSEC 97 % Whois
216.52.190.1
ns1.dal.pnap.net.
Dallas Valid valid 93 % Whois
156.154.71.42
mcd2.ultradns.net.
Sterling Valid valid DNSSEC 93 % Whois
156.154.71.43 Sterling Valid valid DNSSEC 90 % Whois
83.222.124.187 dnsmasq-2.68 Valid valid 97 % Whois
151.202.0.84
nyc1-qwest.bellatlantic.net.
New York Valid valid 97 % Whois
162.248.241.94
ns1.backplanedns.org.
Rochester 9.10.3-P4-Debian Valid valid 97 % Whois
156.154.71.10
rdns2.ultradns.net.
Sterling Valid valid DNSSEC 90 % Whois
156.154.71.11 Sterling Valid valid DNSSEC 93 % Whois
156.154.71.14 Sterling Valid valid DNSSEC 90 % Whois
2604:a880:800:10::1f02:d001
ns10.ny.us.dns.opennic.glue.
Clifton PowerDNS Recursor: OpenNIC Public Tier 2 Valid valid DNSSEC 3 % Whois
156.154.71.26 Sterling Valid valid DNSSEC 90 % Whois
156.154.71.31 Sterling Valid valid DNSSEC 90 % Whois
156.154.71.40 Sterling Valid valid DNSSEC 90 % Whois
216.116.96.2
nscl-01.tierzero.net.
Los Angeles Tierzero BIND Valid valid 97 % Whois
204.116.57.2
dns3.InfoAve.Net.
Columbia Aww, Shucks!!! Valid valid 97 % Whois
23.244.64.38
us4.root.ucann2.net.
Los Angeles none Valid valid DNSSEC 66 % Whois
2605:f700:40:401::473e:49d2
us4.root.ucann2.net.
Los Angeles none Valid valid DNSSEC 66 % Whois
74.113.60.185
74_113_60_185.h5colo.h5colo.com.
Rowlett unbound 1.4.20 Valid valid DNSSEC 97 % Whois
2001:470:bbf2:2::1
rec3.dns.lightningwirelabs.com.
unbound 1.4.20 Valid valid DNSSEC 97 % Whois
209.0.205.50
relayout.mortorcontrols.com.
Houston 9.3.6-P1-RedHat-9.3.6-25.P1.el5_11.8 Valid valid 86 % Whois
2001:550:1:2::D
na-res2.dns.cogentco.com.
blue Valid valid 100 % Whois
198.98.118.110
us1.root.ucann2.net.
Henderson none Valid valid DNSSEC 62 % Whois
192.157.241.147
us1.root.ucann2.net.
Chicago none Valid valid DNSSEC 90 % Whois
2605:f700:c0:1::3869:fb1a
us1.root.ucann2.net.
Chicago none Valid valid DNSSEC 97 % Whois
184.105.193.74
unbound.odvr.dns-oarc.net.
Tuolumne unbound 1.7.0 Valid valid DNSSEC 97 % Whois
104.238.195.139
silver.deepdns.cryptostorm.net.
Las Vegas cryptostorm Valid valid 90 % Whois
2605:b400:500:0:0:0:a00:1e1f Adonis Server (www.bluecatnetworks.com) Valid valid 97 % Whois
2605:B400:300::A00:1E1F Adonis Server (www.bluecatnetworks.com) Valid valid 93 % Whois
2605:b400:300:0:0:0:a00:1e1f Adonis Server (www.bluecatnetworks.com) Valid valid 93 % Whois
2605:B400:500::A00:1E1F Adonis Server (www.bluecatnetworks.com) Valid valid 97 % Whois
2001:4870:8000:3:0:0:0:5
ns2.ctl.one.
Valid valid 100 % Whois
2607:fa88:1:0:0:0:0:2 undisclosed Valid valid 100 % Whois
216.12.255.2
auth1.wayport.net.
Austin None of your business Valid valid 97 % Whois
2001:4b8:3:201:0:0:0:902
auth1.wayport.net.
None of your business Valid valid 97 % Whois
198.82.247.66
jeru.cns.vt.edu.
Blacksburg fancy new chroot version Valid valid DNSSEC 100 % Whois
216.12.255.1
auth0.wayport.net.
Austin None of your business Valid valid 97 % Whois
2001:4b8:2:101:0:0:0:602
auth0.wayport.net.
None of your business Valid valid 97 % Whois
2001:468:c80:6101:0:100:0:62
milo.cns.ipv6.vt.edu.
Blacksburg fancy new chroot version Valid valid DNSSEC 100 % Whois
192.69.77.66
mail.mnvoip.com.
Minneapolis Microsoft DNS 6.1.7601 (1DB15D39) Valid valid 97 % Whois
2602:ffaa:0:0:0:0:2:2
mail.mnvoip.com.
Lakeville Microsoft DNS 6.1.7601 (1DB15D39) Valid valid 93 % Whois
2607:f778:0:9:0:0:0:2 9.11.2-P1-RedHat-9.11.2-1.P1.fc27 Valid valid 97 % Whois
2001:4870:6082:3:0:0:0:5
ns1.ctl.one.
Valid valid 93 % Whois
198.187.135.248
dcroot1.krl.org.
Bremerton Valid valid 100 % Whois
2620:7b:e000:a002:0:0:0:248
dcroot1.krl.org.
Valid valid 100 % Whois
198.187.135.249
dcroot2.krl.org.
Bremerton Valid valid 100 % Whois
69.28.104.5
ns2.telekenex.com.
Los Angeles 9.11.2-P1-RedHat-9.11.2-1.P1.fc27 Valid valid 83 % Whois
2607:fb50:131:95:0:0:0:20 9.8.2rc1-RedHat-9.8.2-0.62.rc1.el6_9.5 Valid valid 100 % Whois
2607:fb50:131:94:0:0:0:5 9.8.2rc1-RedHat-9.8.2-0.62.rc1.el6_9.5 Valid valid 97 % Whois
96.47.228.108
dns.mia.nocroom.com.
Miami dnsmasq-2.48 Valid valid 97 % Whois
107.181.168.52
us-lax1-19.iptransit.io.
Los Angeles powered by d0wn Valid valid DNSSEC 97 % Whois
74.222.38.183 Oswego Valid valid DNSSEC 100 % Whois
74.222.20.152 Los Angeles Valid valid 100 % Whois
74.222.5.98 Los Angeles Valid valid 86 % Whois
74.222.32.224 Glenview Valid valid DNSSEC 93 % Whois
74.222.38.176 Oswego Valid valid DNSSEC 100 % Whois
173.225.7.123
host-173-225-7-123.madisoncounty.net.
Huntsville dnsmasq-2.39 Valid valid DNSSEC 69 % Whois
74.222.32.231 Glenview Valid valid DNSSEC 93 % Whois
74.222.2.157 Los Angeles Valid valid 97 % Whois
173.225.7.176
host-173-225-7-176.madisoncounty.net.
Huntsville 9.3.6-P1-RedHat-9.3.6-20.P1.el5_8.6 Valid valid 97 % Whois
173.225.7.191
host-173-225-7-191.madisoncounty.net.
Huntsville 9.3.6-P1-RedHat-9.3.6-20.P1.el5_8.6 Valid valid 97 % Whois
173.225.3.114
host-173-225-3-114.madisoncounty.net.
Huntsville 9.3.6-P1-RedHat-9.3.6-20.P1.el5_8.6 Valid valid 97 % Whois
173.225.6.16
host-173-225-6-16.madisoncounty.net.
Huntsville 9.3.6-P1-RedHat-9.3.6-20.P1.el5_8.6 Valid valid 97 % Whois
104.155.28.90
90.28.155.104.bc.googleusercontent.com.
Mountain View iCloud DNS Bypass Valid valid 86 % Whois
166.82.74.114
adtran-166-82-74-114.ctc.net.
Statesville SERVFAIL Valid valid 97 % Whois
108.162.42.172
ool-6ca22aac.static.optonline.net.
Fort Lee Nominum Vantio 5.4.5.0 (build 107213) Valid valid DNSSEC 97 % Whois
108.162.38.115
ool-6ca22673.static.optonline.net.
Nominum Vantio 5.4.5.0 (build 107213) Valid valid DNSSEC 76 % Whois
108.162.62.45
ool-6ca23e2d.static.optonline.net.
Valid valid 83 % Whois
108.162.46.243
ool-6ca22ef3.static.optonline.net.
Nominum Vantio 5.4.5.0 (build 107213) Valid valid DNSSEC 72 % Whois
108.162.59.195
ool-6ca23bc3.static.optonline.net.
Nominum Vantio 5.4.5.0 (build 107213) Valid valid DNSSEC 93 % Whois
108.162.62.43
ool-6ca23e2b.static.optonline.net.
Valid valid 76 % Whois
108.162.46.59
ool-6ca22e3b.static.optonline.net.
dnsmasq-2.40 Valid valid DNSSEC 66 % Whois
67.205.250.17 Whiting 9.9.4-RedHat-9.9.4-51.el7_4.2 Valid valid 90 % Whois
104.245.184.100
ns1.infinityhosted.com.
Snow Hill 9.10.3-P4-Ubuntu Valid valid 90 % Whois
104.245.184.200
104-245-184-200.snhl.nca.sta.nfinitylink.net.
Snow Hill 9.10.3-P4-Ubuntu Valid valid 93 % Whois
74.221.221.7
mail.ellsworthpublishing.com.
Chandler Valid valid 97 % Whois
67.205.246.138 Bala Valid valid 100 % Whois
50.7.155.106 Flowery Branch Valid valid DNSSEC 97 % Whois
50.7.155.107 Flowery Branch Valid valid DNSSEC 100 % Whois
50.7.155.108 Flowery Branch Valid valid DNSSEC 100 % Whois
50.7.155.109 Flowery Branch Valid valid DNSSEC 100 % Whois
50.7.155.110 Flowery Branch Valid valid DNSSEC 100 % Whois
67.223.195.141
67-223-195-141.nefcom.net.
Glen Saint Mary Valid valid 48 % Whois
74.221.221.6
mail.dmehosting.com.
Chandler Valid valid 97 % Whois
64.9.42.131 Kutztown dnsmasq-2.40 Valid valid 90 % Whois
64.9.40.143 Kutztown Valid valid 90 % Whois

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