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