There are 18.5 million domain name system (DNS) servers as of 2011.
- There are 13 root servers in the world
- The A-root is the main DNS server
- Almost all root servers are located in the USA
List of the top 20 DNS servers
Note that we have listed the “DNS server domains” instead of the actual DNS servers. This includes all DNS servers using that domain (normally two servers or more). For example, fabulous.com stands for the DNS servers ns1.fabulous.com and ns2.fabulous.com.
1. secureserver.net, 10,590,591 domain names, owner: Wild West Domains Inc.
Scottsdale, Arizona, USA
2. name-services.com, 2,840,123 domain names, owner: eNom, Inc.
Bellevue, Washington, USA
Redmond, Washington, USA
3. yahoo.com, 2,319,962 domain names, owner: Yahoo! Inc.
Sunnyvale, California, USA
4. worldnic.com, 2,278,870 domain names, owner: Network Solutions, LLC
Herndon, Virginia, USA
5. 1and1.com, 1,627,835 domain names, owner: 1&1 Internet Inc.
Wayne, Pennsylvania, USA
6. register.com, 1,582,611 domain names, owner: Register.Com, Inc.
New York, New York, USA
7. sedoparking.com, 1,148,234 domain names, owner: Sedo LLC
Karlsruhe, Baden-Wurttemberg, Germany
8. dnsnameserver.org, 815,222 domain names, owner: New.net Incorporated
Pasadena, California, USA
9. fabulous.com, 780,773 domain names, owner: DBS Administration Pty. Ltd.
Cary, North Carolina, USA
10. buydomains.com, 744,071 domain names, owner: BuyDomains Holdings, Inc.
San Diego, California, USA
Centreville, Virginia, USA
Waltham, Massachusetts, USA
11. anondns.org, 554,059 domain names, owner: Unknown (Registered anonymously)
Frisco, Texas, USA
12. dsredirection.com, 524,364 domain names, owner: Oversee.net
Los Angeles, California, USA
13. schlund.de, 513,375 domain names, owner: Schlund+Partner AG
Karlsruhe, Baden-Wurttemberg, Germany
14. xinnetdns.com, 502,782 domain names, owner: XinNet Technology Corp.
Beijing, China
15. parked.com, 478,644 domain names, owner: Parked.com, LLC
Columbus, Ohio, USA
16. proredirect.com, 468,751 domain names, owner: Oversee.net
Los Angeles, California, USA
17. ipowerweb.net, 466,383 domain names, owner: iPowerWeb, Inc.
Lakewood, California, USA
Phoenix, Arizona, USA
18. dreamhost.com, 458,683 domain names, owner: DreamHost WebHosting
San Francisco, California, USA
Brea, California, USA
19. maltuzi.com, 429,922 domain names, owner: Maltuzi LLC
Los Angeles, California, USA
20. hichina.com, 403,330 domain names, owner: HiChina Zhicheng Technology Ltd.
Beijing, China
Just wanna tell that this is invaluable, Thanks for taking your time to write this.