Spare broadcast call signs
Available WK call signs
133 of the 676 WK four-letter combinations aren't held by any broadcast station. W calls go to stations east 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.
WK call signs at a glance
Of the 676 four-letter WK combinations, 543 belong to broadcast stations and 133 are spare.
Those 543 calls are used by 587 stations (a call can be shared across services, like KXXX and KXXX-FM):
- FM: 361
- AM: 139
- Full-power TV: 41
- LPFM: 28
- Low power TV: 11
- Class A TV: 7
WK stations on the air include WKAA (FM, Willacoochee, GA), WKDU (FM, Philadelphia, PA), WKIW (FM, Ironwood, MI), WKMU (Full-power TV, Murray, KY), WKRY (FM, Versailles, IN), WKVX (AM, Wooster, OH).
The latest WK call sign change: W33FY-D became WKXT-LD on September 29, 2026.
Among the spare ones: 8 used by a ship or shortwave station, 8 old ship calls whose license lapsed. Run any of them through Call Sign Check before you file.
All spare WK call signs
Just released Used by a ship or shortwave station: check before you file Old ship call (license lapsed)
WKAB WKAE WKAH WKAP WKAU WKAW WKBF WKBG WKCK WKCP WKCZ WKDG WKDT WKDY WKEC WKED WKEH WKEJ WKEO WKEP WKEQ WKEV WKEX WKFD WKFG WKFJ WKFK WKFP WKFQ WKFU WKFW WKFZ WKGD WKGE WKGH WKGJ WKGK WKGP WKGU WKGY WKGZ WKHE WKHH WKHN WKHO WKHP WKIA WKIE WKIF WKIG WKII WKIJ WKIR WKIY WKIZ WKJE WKJF WKJI WKJP WKJU WKKA WKKD WKKH WKKK WKKU WKMN WKMP WKMW WKNA WKNB WKNF WKNI WKNM WKNQ WKOC WKOD WKOJ WKOQ WKOU WKPF WKPG WKPH WKPM WKPN WKPP WKPU WKPY WKQA WKQD WKQE WKQF WKQG WKQH WKQM WKQN WKQO WKQP WKQT WKQU WKRE WKSA WKSY WKUC WKUD WKUG WKUH WKUI WKUJ WKUK WKUO WKUP WKUQ WKUR WKUS WKUU WKUV WKUX WKUY WKVD WKWA WKWB WKWD WKWE WKWG WKWH WKWU WKWW WKWY WKXF WKYI WKZG WKZH WKZN
← WJ call signs All prefixes WL call signs →
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.