Spare broadcast call signs

Available KF call signs

366 of the 676 KF four-letter combinations aren't held by any broadcast station. K calls go to stations west of the Mississippi River. Click any call to check it.

Spotted a call you want? Verify it before filing.

The call sign search the FCC offers covers broadcast stations only. Our free Call Sign Check adds shortwave stations and FCC ship licenses, flags a call that was recently released or is moving to a new owner, and gives the rule behind each result.

KF call signs at a glance

Of the 676 four-letter KF combinations, 310 belong to broadcast stations and 366 are spare.

Those 310 calls are used by 336 stations (a call can be shared across services, like KXXX and KXXX-FM):

FM: 151
AM: 72
LPFM: 45
Full-power TV: 40
Low power TV: 20
Class A TV: 7

KF stations on the air include KFAA (FM, Horace, ND), KFDJ (FM, Glendale, UT), KFIX (FM, Plainville, KS), KFMM (FM, Virden, NM), KFQD (AM, Anchorage, AK), KFTT (FM, Penn Valley, CA).

The newest KF call: KFOG-LP, a new station's first call sign on September 23, 2026.

Among the spare ones: 1 released in the last 60 days, 7 used by a ship or shortwave station, 13 old ship calls whose license lapsed. Run any of them through Call Sign Check before you file.

Just released

KFTI

All spare KF call signs

Just released Used by a ship or shortwave station: check before you file Old ship call (license lapsed)

KFAD KFAF KFAG KFAJ KFAK KFAO KFAP KFAS KFAU KFAZ KFBE KFBF KFBH KFBJ KFBL KFBM KFBO KFBP KFBQ KFBV KFBY KFCG KFCH KFCI KFCK KFCL KFCN KFCP KFCQ KFCU KFCX KFCY KFCZ KFDB KFDD KFDE KFDH KFDK KFDL KFDN KFDO KFDQ KFDT KFDU KFDV KFDW KFDZ KFEA KFEC KFED KFEE KFEF KFEH KFEI KFEJ KFEK KFEM KFEN KFEO KFES KFET KFEU KFEV KFEW KFEY KFFC KFFG KFFJ KFFL KFFO KFFQ KFFT KFFU KFFY KFFZ KFGA KFGC KFGF KFGH KFGJ KFGK KFGN KFGP KFGQ KFGS KFGT KFGU KFGV KFGW KFGZ KFHA KFHB KFHD KFHE KFHF KFHG KFHH KFHI KFHJ KFHK KFHN KFHO KFHP KFHQ KFHR KFHS KFHT KFHU KFHV KFHX KFHY KFHZ KFIB KFIC KFID KFIE KFIF KFIH KFIJ KFIK KFIM KFIO KFIQ KFIS KFIU KFIW KFIY KFJA KFJD KFJE KFJF KFJG KFJH KFJI KFJJ KFJK KFJN KFJO KFJP KFJQ KFJR KFJT KFJU KFJV KFJW KFJY KFKC KFKD KFKE KFKG KFKH KFKI KFKJ KFKL KFKM KFKN KFKO KFKP KFKQ KFKR KFKS KFKT KFKU KFKV KFKW KFKX KFLE KFLJ KFLM KFMD KFMF KFMV KFNA KFNG KFNH KFNI KFNJ KFNK KFNQ KFNT KFNU KFNY KFOA KFOB KFOC KFOD KFOE KFOF KFOJ KFON KFOP KFOQ KFOT KFOU KFOV KFOZ KFPA KFPC KFPD KFPE KFPF KFPG KFPI KFPJ KFPK KFPL KFPM KFPN KFPO KFPQ KFPU KFPV KFPY KFPZ KFQA KFQB KFQC KFQE KFQF KFQG KFQH KFQI KFQJ KFQK KFQL KFQN KFQO KFQP KFQQ KFQR KFQS KFQT KFQU KFQV KFQW KFQY KFQZ KFRA KFRF KFRH KFRJ KFRK KFRL KFRP KFRT KFRV KFSA KFSB KFSJ KFSU KFSV KFSX KFSY KFTB KFTD KFTF KFTI KFTJ KFTQ KFUA KFUB KFUC KFUD KFUF KFUH KFUI KFUJ KFUK KFUM KFUP KFUQ KFUS KFUU KFUV KFUW KFUX KFUY KFVA KFVB KFVC KFVF KFVG KFVH KFVI KFVJ KFVK KFVL KFVM KFVN KFVO KFVP KFVQ KFVR KFVU KFVV KFVW KFVX KFVY KFVZ KFWC KFWE KFWF KFWH KFWI KFWJ KFWK KFWL KFWM KFWN KFWO KFWP KFWQ KFWS KFWT KFWU KFWV KFWW KFWX KFWY KFWZ KFXC KFXG KFXQ KFXW KFXY KFYA KFYB KFYC KFYD KFYE KFYF KFYG KFYH KFYJ KFYK KFYM KFYP KFYQ KFYS KFYT KFYU KFYW KFYX KFYY KFYZ KFZA KFZB KFZC KFZD KFZF KFZG KFZH KFZI KFZJ KFZK KFZL KFZM KFZP KFZQ KFZS KFZT KFZU KFZV KFZW KFZY KFZZ

← KE call signs All prefixes KG call signs →

Spare call signs by prefix

K call letters: west of the Mississippi River

W call letters: east of the Mississippi River

Spotted a call you want? Verify it before filing.

Current to October 16, 2026, drawn from FCC records for stations, ships and shortwave, with a fresh update each morning. Not an FCC product.