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Spare broadcast call signs

Available KW call signs

301 of the 676 KW 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.

KW call signs at a glance

Of the 676 four-letter KW combinations, 375 belong to broadcast stations and 301 are spare.

Those 375 calls are used by 402 stations (a call can be shared across services, like KXXX and KXXX-FM):

  • FM: 208
  • AM: 85
  • LPFM: 58
  • Full-power TV: 30
  • Low power TV: 19
  • Class A TV: 2

KW stations on the air include KWAA (FM, Mart, TX), KWES (AM, Ruidoso, NM), KWIX (AM, Moberly, MO), KWMS (FM, Williams, CA), KWPZ (FM, Lynden, WA), KWTU (FM, Tulsa, OK).

The newest KW call: KWEE-LP, a new station's first call sign on September 22, 2026.

Among the spare ones: 2 released in the last 60 days, 3 old ship calls whose license lapsed. Run any of them through Call Sign Check before you file.

Just released

KWME KWYU

All spare KW call signs

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

KWAE KWAF KWAG KWAH KWAJ KWAL KWAN KWAQ KWAU KWAZ KWBI KWBK KWBO KWBS KWBV KWBX KWCB KWCE KWCG KWCI KWCJ KWCR KWCS KWCT KWCU KWCY KWCZ KWDA KWDE KWDG KWDH KWDI KWDL KWDN KWDP KWDR KWDS KWDT KWDU KWDV KWDX KWDY KWDZ KWEA KWEF KWEG KWEI KWEJ KWEK KWEO KWEQ KWER KWEU KWEV KWEZ KWFA KWFD KWFE KWFG KWFK KWFP KWFQ KWFU KWFV KWFW KWFY KWFZ KWGA KWGC KWGE KWGG KWGH KWGI KWGJ KWGK KWGM KWGQ KWGT KWGU KWGV KWGW KWGX KWGY KWGZ KWHC KWHG KWHM KWHO KWHR KWHU KWHV KWHX KWHZ KWIB KWIF KWIG KWIH KWII KWIJ KWIO KWIR KWIU KWIV KWIW KWIY KWJA KWJE KWJF KWJG KWJH KWJI KWJL KWJN KWJO KWJQ KWJR KWJS KWJT KWJU KWJW KWJX KWJY KWKE KWKF KWKG KWKI KWKP KWKU KWKV KWKX KWKY KWLH KWLI KWLQ KWLW KWLX KWMA KWMB KWME KWMH KWMI KWMK KWMM KWMP KWMQ KWNF KWNH KWNI KWNJ KWNP KWNT KWNU KWNX KWNY KWOB KWOI KWOM KWOO KWOP KWOQ KWOV KWOY KWPD KWPE KWPF KWPG KWPH KWPI KWPJ KWPO KWPP KWPY KWQB KWQD KWQE KWQF KWQG KWQH KWQI KWQJ KWQK KWQL KWQM KWQN KWQO KWQP KWQR KWQS KWQT KWQU KWQV KWQY KWQZ KWSG KWSJ KWSY KWSZ KWTA KWTE KWTI KWTJ KWTK KWTM KWTP KWTQ KWTT KWTY KWTZ KWUA KWUB KWUC KWUD KWUE KWUG KWUH KWUI KWUJ KWUK KWUM KWUO KWUQ KWUU KWUV KWUX KWUY KWVB KWVC KWVD KWVG KWVJ KWVK KWVM KWVO KWVQ KWVS KWVU KWVW KWVX KWVY KWWB KWWC KWWF KWWG KWWH KWWI KWWP KWWQ KWWX KWWZ KWXA KWXB KWXE KWXF KWXG KWXH KWXI KWXJ KWXK KWXN KWXO KWXP KWXQ KWXR KWXU KWXV KWXW KWYA KWYF KWYH KWYI KWYJ KWYM KWYQ KWYU KWYV KWZA KWZB KWZC KWZD KWZE KWZF KWZG KWZH KWZI KWZJ KWZK KWZL KWZM KWZN KWZO KWZP KWZQ KWZR KWZS KWZT KWZU KWZV KWZW KWZX KWZY KWZZ

← KV call signs All prefixes KX 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.

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.