dcs4

While all 456,976 standard 4-letter .com domains (LLLL.com) were originally registered by 2013, hundreds of 4-letter domains expire and drop back into the open market daily. dcs4.com monitors and indexes these dropping and available 4-letter .com names in real time.

There are 456,976 pure 4-letter .com combinations (26^4). When including numbers (0-9), there are 1,679,616 total 4-character .com domain combinations.

Using dcs4.com's live filter index, you can search wildcard patterns using * (multi-character) and ? (single-character) wildcards, for example n* or qu??, check live availability, and track expiring 4-letter names.