4-Letter Domain Names
No 4-letter domains available at the moment. Check back soon!
Why 4-Letter Domains?
4-letter domains (LLLL domains) offer the perfect balance between rarity and availability. They're short enough to be memorable but more accessible than ultra-rare 3-letter domains.
Perfect for Acronyms
- Company abbreviations (like MSFT, AAPL, GOOG)
- Industry acronyms (SaaS, CRM, API)
- Product names and brand abbreviations
- Memorable ticker-style domains
- Global brands that work across languages
The LLLL Advantage
While 3-letter domains are extremely rare and expensive, 4-letter domains offer more options at more accessible price points. They're still short enough to be memorable and work well for companies that use acronyms or abbreviated brand names.
Frequently Asked Questions
How many 4-letter .COM domains exist?
There are 456,976 possible 4-letter .COM combinations (26^4). While more available than 3-letter domains, premium LLLLs are still valuable and sought after.
What makes a 4-letter domain valuable?
The most valuable 4-letter domains are pronounceable, have meaning as acronyms, or use common letter patterns. Domains that spell words or have obvious meanings command higher prices. See how much a domain name is worth for the factors that set the price, or step up a character to 5-letter domains for more available options.
Should I choose a 4-letter domain for my startup?
If your company has a 4-word name that abbreviates well, or if you want a short, memorable domain without the premium of 3-letter names, LLLL domains are an excellent choice. They are short enough to brand and own, with far more available combinations than three-letter names.
Are 4 letter domains still available?
Yes, four-letter domains are still available, but not by hand-registration: there are 456,976 possible LLLL combinations and the clean ones were claimed long ago. The realistic way to get one is the aftermarket, where owners list names for sale. Search by length on a curated marketplace to see what is genuinely available right now. If the exact name you want is taken, read how to buy a domain that is already taken.
Are there 4 letter .ai domains for sale?
Yes. Four letters is a favorite length for AI startups because it is short enough to own outright while still reading as a real word or tight invented brand on the .ai extension. Browse our short .ai domains for three to five letter AI names, or see the full .ai domains collection.
Compare other short lengths and extensions:
Last updated June 2026
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