Best DNS Servers in Illinois, United States

Looking for the fastest DNS in Illinois, United States or the best DNS server for gaming, streaming, and everyday browsing? Below is a curated list of reliable public DNS resolvers and ISP-specific DNS servers available across Illinois, United States.

Choosing a DNS server that is physically closer to your location can reduce DNS lookup times, improve website loading speed, lower latency, and provide a more responsive internet experience. Whether you're searching for DNS IP addresses in Illinois, United States, an alternative to your ISP's DNS, or the lowest latency DNS server near you, this list can help.

Best Public and ISP DNS Servers in Illinois, United States (34 Servers)

Want to test and find out the fastest DNS server for Illinois, United States? Benchmark your default DNS against providers like Comcast Cable Communications or AT&T Enterprises, or servers in Chicago or Rockford. Download the DNSSpeedTester Desktop App to benchmark your default DNS against these providers using UDP, DoH, DoT, and Ping, measuring all results directly from your device for maximum accuracy. Just export these IPs using the Export All button below, or check the boxes next to specific providers for a custom list, and load them into the app! (You can also use the export icon on any individual card). Since these lists primarily contain IPv4 addresses (which use UDP), the Desktop App is required for full compatibility. For testing DoH (DNS over HTTPS), you can import the file directly into the Web App. You can also self-host the app on your own infrastructure to run private tests inside isolated networks. If you ever want to revert your test list back to the original domains and servers, just click Reset to Defaults in the app's settings.

C

Comcast Cable Communications

13 Servers
United States
Distributed across 3 cities: 7 in Chicago, 5 in Rockford, 1 in North Chicago.
IPv4
50.229.170.233
50.244.47.177
50.247.134.226
70.91.107.93
75.150.197.154
76.16.127.159
96.74.213.233
IPv4
73.111.103.128
98.213.192.217
98.213.192.223
98.213.192.240
98.213.193.14
IPv4
50.220.130.1
A

AT&T Enterprises

2 Servers
United States
Distributed across 2 cities: 1 each in Aurora and Oak Brook.
IPv4
104.187.69.92
IPv4
12.12.131.134
C

Charter Communications

2 Servers
United States
Distributed across 2 cities: 1 each in Roxana and Swansea.
IPv4
71.86.3.190
IPv4
68.188.22.22
M

Metro Communications

2 Servers
United States
Distributed across 2 cities: 1 each in Gibson City and O'Fallon.
IPv4
216.107.162.33
IPv4
157.185.70.98
N

NTT America

2 Servers
United States
All servers are located in Chicago.
IPv4
129.250.35.250
129.250.35.251
W

WideOpenWest Finance

2 Servers
United States
All servers are located in Chicago.
IPv4
64.233.207.16
64.233.207.2
B

Blast Communications

1 Server
United States
Located in Willowbrook.
IPv4
74.123.230.1
C

CABLE ONE

1 Server
United States
Located in Shelbyville.
IPv4
24.100.136.104
F

First Communications

1 Server
United States
Located in Chicago.
IPv4
168.93.88.114
G

Geneseo Telephone

1 Server
United States
Located in Rock Island.
IPv4
206.125.134.19
G

GTT Americas

1 Server
United States
Located in Oak Brook.
IPv4
64.81.159.2 Offline
K

Kamatera

1 Server
United States
Located in Chicago.
IPv4
43.231.234.17
L

Level 3 Communications

1 Server
United States
Located in Chicago.
IPv4
4.30.165.222
Q

Quad State Internet

1 Server
United States
Located in Metropolis.
IPv4
23.189.48.79
R

RCN

1 Server
United States
Located in Chicago.
IPv4
216.80.113.2
S

South Suburban College - Dist 510

1 Server
United States
Located in Tinley Park.
IPv4
64.107.45.5
No providers matched your search.

DNS Servers by Continent

Select a region or country below to view the best public DNS servers available.

— OR —
/

Africa

Asia

Europe

North America

Oceania

South America

How to Change DNS on Windows, Android, Mac, and iPhone

You can configure these IP addresses on your router to cover your entire home network, or you can configure them directly on your specific devices. For step-by-step instructions on updating your network settings, check out our comprehensive guide on How to Change DNS Settings.

Data compiled from extensive network performance scans. Availability and latency may vary based on your exact location and ISP routing policies.

Frequently Asked Questions About DNS in Illinois, United States

What is the fastest DNS server in Illinois, United States?

Global Anycast providers like Google, Cloudflare, and Cisco OpenDNS are typically the fastest worldwide. Unless you are using one of these global networks, the fastest DNS server depends on your location and ISP. Testing multiple DNS providers is the most accurate way to find the best option. Some of the top providers in Illinois, United States include Comcast Cable Communications, AT&T Enterprises, and Charter Communications.

Which DNS is best for gaming in Illinois, United States?

For gaming in Illinois, United States, low DNS latency matters more than bandwidth. Comcast Cable Communications, AT&T Enterprises, and Charter Communications's local resolvers reduce round-trip lookup time compared to routing queries to distant servers. Use the DNSSpeedTester app to benchmark them against your current DNS under load.

What are the most popular DNS IP addresses in Illinois, United States?

Based on server availability, Comcast Cable Communications, AT&T Enterprises, and Charter Communications are among the most popular and widely available DNS servers in Illinois, United States.

Can changing DNS increase internet speed?

Changing DNS does not increase bandwidth, but it can reduce website lookup delays and make browsing feel faster.