Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I am trying to get a 3 letter domain with .net or .org and it seems like EVERY combination is taken. Is there a way i can get a list of domains available? perhaps with a bot? (i'll write it if i need to)

share|improve this question
I can't find it, but I remember seeing an article on slashdot or something a few years ago saying that all of the 3 letter domains where used for .com, .net, and .org. – Zoredache Jan 3 '10 at 9:16
thanks Zoredache – acidzombie24 Jan 3 '10 at 19:46
com are all gone, but there are some nets and orgs. – bobince Jan 4 '10 at 0:11
up vote 1 down vote accepted

On windows you can use

nslookup <domain name> 


Address:  64.59.144.XX

Non-authoritative answer:

Example no domain:

Address:  64.59.144.XX

*** can't find Non-ex
istent domain

Every 3 letter domain has been registered on .com, .net, .org... I believe its the same with 4 letter domains, i think there is still some 5 letter domains left.

share|improve this answer

Asking for all three-letter domains from the .com, .net, and .org servers should take about 17576 queries to each, so 52,728 total. Should take about 15 minutes to write the script, and a few minutes to run.

It won't get you exactly what you want, as not being in DNS does not exactly mean it is free. However, it's a good start.

share|improve this answer
I have no idea how to properly check if a domain is registered or not. – acidzombie24 Jan 3 '10 at 8:26
Use a registrar lookup, perhaps 'whois' or the like. Most places that let you register domains will let you query interactively. Asking the DNS servers, however, will be a fast filter to know what MIGHT be free. – Michael Graff Jan 3 '10 at 8:29

You should expect that all three-letter domains are taken and many are available for sale. Google is your friend (or perhaps not).

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.