| Name | Number of Codes |
|---|---|
| Kalle Siukola | 1 |
| Kamek | 154 |
| Kamijo San | 7 |
| Kamisamavx | 55 |
| kammish22 | 6 |
| kaos.tkc@netchannel.net | 47 |
| kaphien@crosswinds.net | 4 |
| Karat Corporation | 824 |
| Karl Hodgkiss | 11 |
| Karpmaster | 40 |
| kashifmaster | 1 |
| Kate Conner (ALLalon3isallweR@yahoo.com) | 1 |
| Kato | 100 |
| KawaiiNeko333@aol.com | 24 |
| kawhite@webtv.net | 1 |
| kay | 205 |
| kaz49@IDT.NET | 8 |
| Kazin_the_Mage@yahoo.com | 34 |
| Kazul | 4 |
| kcbee28@tm.net.my | 12 |
| kchan@hknet.com | 5 |
| KDCN | 1 |
| kdent@wpo.hcc.com | 4 |
| KDF | 624 |
| kdworth@shianet.org | 6 |
| Kealohakealii | 2 |
| Keeman | 2 |
| Keith King | 1 |
| KelPearl | 164 |
| Ken | 7 |
| Ken Jackson | 1 |
| Kenchou | 22 |
| Kenetic X | 1 |
| kenneth_bkng@hotmail.com | 12 |
| kennyk | 1 |
| kenobi | 3615 |
| Kensain | 2 |
| Kenshin | 166 |
| kentpw | 33 |
| KePearl | 1 |
| Kerochan-hacker | 4 |
| kevin | 4 |
| Kevin Cull | 134 |
| Kevin Tinin | 1 |
| Kevin? | 6 |
| kevin@netvigator.com | 37 |
| kevinchan@hkstar.com | 3 |
| Kevinp@nb.nbnet.ca | 1 |
| kevin_cull | 27 |
| kevmwilli@hotmail.com | 2 |
| Name | Number of Codes |
|---|---|
| KEYzach89 | 12 |
| kgba | 2 |
| kh2k4 | 26 |
| Kheldar | 2 |
| khicke01@hercules.baker.edu | 15 |
| khiu ke bin | 2 |
| Khow | 124 |
| KHS | 72 |
| Kia666 | 69 |
| kiaghi7 | 6 |
| kickenchicken57 | 145 |
| KID | 2 |
| Kid Minus | 4 |
| Kidcool12345 | 2 |
| kiddy | 8 |
| Kids | 7 |
| kidshark@webtv.net | 1 |
| KillBorn | 2 |
| Killer Code 007 | 1 |
| Killer490 | 3 |
| kill_29@limpbizkit.com | 1 |
| Kim | 46 |
| Kim Hawk | 1286 |
| Kim Stok | 26 |
| kimhacker | 1 |
| kin2000@hotmail.com | 6 |
| King of Chaos | 73 |
| King Olympic Slam | 1 |
| KingBanana | 7 |
| KingEdgar0 | 59471 |
| King_Canuckian | 12 |
| king_dedede@yahoo.com | 2 |
| kintero | 41 |
| Kirby is cool | 18 |
| Kitsune_Baka | 11 |
| kix_2@hotmail.com | 5 |
| Kizul | 7 |
| KJACK21@aol.com | 8 |
| kjc | 21 |
| kjn1 | 349 |
| kj_brown99@snet.net | 3 |
| Kleeberg the Hacker | 3 |
| Knight of Time | 4 |
| Knight_Wolf@webtv.net | 1 |
| Knubzy | 3 |
| Knuckles | 2 |
| Knux0rz | 8 |
| Kode-Z | 78 |
| KodeKiller | 1 |
| kodeking | 78 |