| Prefixo | Organização | Intenção | Site da Internet | Contato | Inscrito |
|---|---|---|---|---|---|
| FA | Fantera Software Solutions | Fantera Library | www.fantera.com.ua | Alexander Ionov | 20-Feb-2000 |
| FAB | FabData Systems Ltd | Reserved; Reserved | Andy Mac | 17-Jun-1998 | |
| Fbx | DevZone | TFbxSchedule | www.devzone.at | Eric Brunner | 17-Jan-2000 |
| FC | Woll2Woll Software | Reserved; Reserved | www.woll2woll.com | Paul | 01-Feb-1999 |
| FCH | Fred C. Hill | Reserved; Reserved | Fred C. Hill | 30-Dec-1998 | |
| FCL | Bank of Hawaii - New Caledonia | Toolkit | www.boh.nc | Stéphane FILLON | 02-Jul-2000 |
| fcw | FCW Software | ?all? | Frederick C. Wilt | 14-Sep-1999 | |
| FD | None | Various | Flint Dwiggins | 14-Oct-1999 | |
| Fda | Fiada Software Systems | David Thornton | 26-Sep-1999 | ||
| FE | Fe Software and Development | PIM Flash | www.fesoft.com | Gabriel Forner | 02-Apr-1999 |
| FF | TurboPower Software Company | FlashFiler; Database System | www.turbopower.com | Julian M Bucknall | 16-May-1998 |
| FFS | Final Filer Software | Toolkit; Toolkit | www.finalfiler.com | Pierre du Parté | 13-Jun-1998 |
| FG | Femte Gear | PixelPack; Graphics | www.femte-gear.dk | Peter Strand | 05-May-1998 |
| FGA | FG and A Software | www.fga-software.com | Franco Graziosi | 25-Sep-1999 | |
| fh | Fishhead Software | reserved | www.fishware.com | Thomas R Domijan | 21-Jan-2000 |
| fhs | Fishhead Software | reserved | www.fishware.com | Thomas R Domijan | 21-Jan-2000 |
| FIS | First Internet Software House | Various | www.fishouse.com | Allan Carlton | 27-Mar-2000 |
| fjs | Fernando Silva | Fernando Silva | 15-Sep-2001 | ||
| FL | internal | Marc Scheuner | 05-Jan-2000 | ||
| FL | Business of Dany Marmur | First Lane Support Package | www.dany.se | Dany Marmur | 26-May-2010 |
| FLC | F.Larsson Consulting | n/a | www.larssonconsulting.com | Fredrik Larsson | 16-Oct-1999 |
| FLT | internal | Marc Scheuner | 05-Jan-2000 | ||
| FLX | Razar | FlexTable | razar.com.au | Wally Ripper | 21-Apr-1999 |
| FLX | Flexsys Consultoria e Informática Ltda. | www.flexsys-ci.com | Felipe G. Coury | 06-Jun-1999 | |
| Fly | Various | www.delphibits.com | Magnus F | 25-Aug-2009 | |
| FLZ | Freelands Developer's Guild | Freelands Game SDK components | members.tripod.com/~Freelands_SDK/index.html | Michael H. | 26-Apr-1999 |
| FMI | FMI Solutions Ltd | FMIxxx | www.fmisolutions.com | Mike MacDonagh | 27-Feb-2002 |
| fmn | Analitica Sistemas Ltda | RESERVED | Francisco Maia Goncalves Neto | 07-Feb-2000 | |
| FN | Function Consulting | Reserved | www.functionconsulting.com | Kyle A. Miller | 23-Jun-1999 |
| Foo | Anders Brändström | 01-Sep-2000 | |||
| Fourth | 4thfebruary.port5.com | Sergey S. Tkachenko | 09-Feb-2002 | ||
| FP | Filippo Passeggieri | Reserved; Reserved | www.geocities.com/SiliconValley/Way/7176 | Filippo Passeggieri | 04-Aug-1998 |
| FR | New Zealand Forest Research Institute | Reserved | www.forestresearch.cri.nz | John Threadgill | 07-Apr-1999 |
| frk | Thyamad Consultoria | reserved | www.thyamad.com | Frank Alcantara | 28-Feb-2000 |
| frm | Lassie Accounting System | helpmaker.hypermart.net/ | Amanda Lee | 12-Dec-1999 | |
| FRS | Fleet River Software | InterBase Observer | www.fleetriver.demon.co.uk | Paul Reeves | 11-Jul-1999 |
| FRY | Fury UK | Reserverd | www.fury.co.uk | John Malia | 20-Aug-1999 |
| FS | Frost Software | Reserved | www.frostbow.com | Richard Frost | 04-Oct-1999 |
| Fs | FraserSoft | FsExpert and Fsxxxxxx | www.frasersoft.net | Pete Fraser | 17-Sep-2001 |
| FSM | FSM Desenvolvimento | FSM Library | Fabio S Monteiro | 26-Jun-1999 | |
| FSM | FSM Desenvolvimento | FSM Library | www.crosswinds.net/~fsmlib | Fabio S Monteiro | 06-Oct-1999 |
| FSS | FESTech Software Solutions | reserved | www.festech.com | Bill Querry | 24-Jul-1999 |
| FT | Fenestra Technologies Corporation | Reserved | www.fenestra.com | Rick Rogers | 17-Jun-1999 |
| FTG | FORTECH | reserved | www.fortech.lv | Edward Kreis | 06-Mar-2000 |
| FTS | Footy Tipping Software | www.footy.com.au/fts/ | Matthew Vincent | 02-Nov-1999 | |
| FTV | FutureTV | SMAK Framework | www.futuretv.com | Sean Kearon | 14-Mar-2002 |
| FTX | Frontix Development BV | Various | www.frontix.com | Paul Niehaus | 24-Jun-1999 |
| FW | SolCraft Ltd. | www.solcraft.lv | Oleg Vasileshnikov | 06-Jul-2000 | |
| fws | Maverick Consulting | Scoreboard | www.geocities.com/SteinF | Fred Stein | 20-Jul-2000 |
| FX | Cyber FX Communications | Cyber FX Components; Toolkit | www.cfxc.com | Chuck Gadd | 13-May-1998 |
| FX | www.seandockery.org | Sean Dockery | 06-Apr-2003 | ||
| fy | fuyoo company | fyall | www.fuyoo.net | www.fuyoo.net | 21-Mar-2004 |
| FZ | DIGIMAC Software | Reserved | www.digimac.com | Fabrizio Zacche' | 06-May-1999 |