Whatever is your reason, here’s a list of free DNS hosting or NS service providers if you need one. Not that those DNS service or dynamic DNS services only supports shared third level hostname (i.e username.dns-subdomain.com) and not self own (core) fully qualified top and second level domain name are excluded from the list.

  • Bur.st Networking – Provides domain hosting and domain seconding (secondary DNS), complete with mail hosting and backup mail server. Bur.st has a number of redundant name-servers, located at logicaly and physicaly separate sites. Only available to those physically live in Australia.
  • dnsEXIT – provides reliable DNS Services free to top level domains for both business and internet users. The DNS supports Dynamic IP that means users will be able to run your own website, ftp, or mail servers via DSL, cable modem lines with dynamic IP. Features DNS Tools record creation wizard.
  • DNS Park – Current promotion in AdWords campaign is offering free services just to try DNS Park service. The free service tokens do not expire so users can use them forever. Free services available are DNS Hosting, Mail Guiding, Web Guiding and Web Camping.
  • DynDNS.dk – Current pricing for DNS Pro service is free which enables users to manage all name related aspects for own domain names. Include special features such as dynamic updateable IP-addresses and browser request forwarding (to another URL). All the standard name server settings (A-, CNAME-, MX-records etc.) can be controlled.
  • EditDNS – Free DNS hosting supports A, CNAME, MX, NS, SRV, TXT, PTR, and AAAA records, backup DNS, dynamic DNS, sub-domains, web forwarding, e-mail forwarding, email hosting, e-mail backup, MX re-routing, and spam and virus email filtering. Europe and US nameservers available.
  • EveryDNS – Provides static free DNS services as well as many advanced services such as Dynamic DNS resolution, Secondary service, AXFR service, and domain2web redirection.
  • freeDNS.afraid.org – Free dynamic DNS and static DNS services, subdomain hosting, domain hosting, backup DNS, forward and reverse IPv6 DNS hosting (both .int and .arpa) and URL redirection or web forwarding. Support unlimited number of domains per account, all TLD, and record types including CNAME, A, AAAA, MX, NS, TXT, LOC, RP, HINFO, SRV records. Also features round robin DNS supported for load balancing and URL cloaking redirection. Users can edit TTL, Minimum, Allow/Deny AXFR’s, and approve/disapprove others from using hosts on your domain.
  • Granite Canyon – The free public DNS service offers both primary and secondary DNS.
  • Gratis DNS – Free DNS service in Danish language.
  • miniDNS – Provides hosting for your own top-level domain name, support dynamic IP to fixed domain name mapping, and web based DNS record management.
  • MyDomain – Sign up and register a free account to use the free web-based DNS Management service. No purchase necessary. Also included free e-mail forwarding, unmasked, masked or banner supported URL forwarding.
  • Sitelutions – Free internationally redundant high-quality NS server for DNS (dynamic and static), URL redirection or forwarding). Supports domain parking and domain locking and using easy web-based control for DNS and redirection settings. Allows low TTL settings and instant dynamic updates.
  • Twisted4Life – Free secondary DNS for domains which users have control of its DNS settings on primary DNS server.
  • VCSWEB – Free DNS Service (a Primary and a Secondary) which support both static or dynamic IP address, with an easy to use interface that even beginners can use, whilst not restricting the more advanced users. All changes has real-time updates.
  • VDirect – Offers free virtual web, domain and email redirection service, with cloaking and website statistics features. Advertising supported using a banner at bottom of redirected page, popup banner, or a banner delay page. Paid service for no adverts.
  • XName – Provides primary and secondary name servers, which hosted on 3 name servers. Supports IPv6 AAAA records, .in-addr.arpa zones (PTR records), automatic modification of associated reverse (or normal) zone, dynamic update, and automatic refresh.
  • ZoneEdit – Provides free managed DNS service and secondary name service with servers in US and Europe. Also offers free WebForward domain forwarding, MailForward email forwarding, starter web page and domain parking. Supports dynamic DNS (DDNS) and failover or load balancing. Free service limited to maximum 5 domains.
Note that most DNS hosts that advertise dynamic DNS support (DDNS) should be able to work with static IP addresses too.