Spare broadcast call signs
Available KA call signs
220 of the 676 KA 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.
KA call signs at a glance
Of the 676 four-letter KA combinations, 456 belong to broadcast stations and 220 are spare.
Those 456 calls are used by 487 stations (a call can be shared across services, like KXXX and KXXX-FM):
- FM: 286
- AM: 79
- Full-power TV: 50
- LPFM: 35
- Low power TV: 28
- Class A TV: 9
KA stations on the air include KAAA (AM, Kingman, AZ), KAFF (AM, Flagstaff, AZ), KAKA (FM, Salina, KS), KANJ (FM, Giddings, TX), KARV (AM, Russellville, AR), KAVM (FM, Cold Bay, AK).
The newest KA call: KANC-LP, a new station's first call sign on September 22, 2026.
Among the spare ones: 1 released in the last 60 days, 17 used by a ship or shortwave station, 35 old ship calls whose license lapsed. Run any of them through Call Sign Check before you file.
Just released
All spare KA call signs
Just released Used by a ship or shortwave station: check before you file Old ship call (license lapsed)
KAAE KAAF KAAG KAAM KAAO KAAU KAAV KAAW KAAX KABJ KABK KABL KABM KABO KABP KABS KABY KACF KACK KADB KADE KADG KADH KADJ KADK KADM KADP KADW KADX KADZ KAEA KAEC KAED KAEE KAEG KAEI KAEJ KAEK KAEL KAEM KAEN KAEO KAEP KAEQ KAES KAEU KAEV KAEW KAEX KAEY KAEZ KAFA KAFB KAFD KAFG KAFI KAFJ KAFK KAFL KAFO KAFP KAFQ KAFS KAFU KAFV KAFW KAGD KAGJ KAGK KAGM KAGQ KAGX KAHB KAHD KAHF KAHH KAHJ KAHK KAHN KAHP KAHQ KAHT KAHV KAHW KAHX KAHY KAIE KAIF KAIJ KAIN KAIU KAIY KAJG KAJH KAJI KAJP KAJQ KAJU KAJV KAJW KAJY KAKB KAKF KAKG KAKH KAKY KALH KALJ KAME KAMG KAMH KAMN KAMW KANF KANK KAOA KAOD KAOF KAOH KAOJ KAOL KAON KAOO KAOP KAOQ KAOT KAOU KAOV KAOZ KAPD KAPF KAPG KAPH KAPJ KAPO KAPQ KAPT KAPV KAPZ KAQB KAQC KAQE KAQG KAQH KAQJ KAQK KAQL KAQM KAQN KAQO KAQP KAQR KAQS KAQT KAQU KAQV KAQX KAQY KAQZ KASC KASG KASJ KASQ KASV KASX KAUA KAUB KAUE KAUG KAUI KAUL KAUP KAUQ KAUV KAUW KAUX KAUY KAVF KAVG KAVH KAVJ KAVL KAVN KAVQ KAVR KAVT KAVV KAWG KAWH KAWI KAWM KAWT KAWY KAXB KAXC KAXD KAXF KAXH KAXI KAXJ KAXK KAXN KAXO KAXP KAXQ KAXS KAXU KAXY KAYF KAYG KAYI KAYJ KAYY KAYZ KAZJ KAZL KAZO KAZP KAZV KAZW
Spare call signs by prefix
K call letters: west of the Mississippi River
- KA220
- KB203
- KC207
- KD354
- KE372
- KF366
- KG392
- KH343
- KI380
- KJ395
- KK356
- KL207
- KM284
- KN346
- KO334
- KP329
- KQ406
- KR187
- KS196
- KT209
- KU398
- KV359
- KW301
- KX365
- KY406
- KZ359
W call letters: east of the Mississippi River
- WA197
- WB176
- WC176
- WD310
- WE309
- WF314
- WG310
- WH263
- WI340
- WJ241
- WK133
- WL155
- WM174
- WN284
- WO380
- WP271
- WQ401
- WR147
- WS209
- WT242
- WU442
- WV311
- WW305
- WX376
- WY380
- WZ391
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.
Current to October 16, 2026, drawn from FCC records for stations, ships and shortwave, with a fresh update each morning. Not an FCC product.