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Spare broadcast call signs

Available WS call signs

209 of the 676 WS 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.

WS call signs at a glance

Of the 676 four-letter WS combinations, 467 belong to broadcast stations and 209 are spare.

Those 467 calls are used by 515 stations (a call can be shared across services, like KXXX and KXXX-FM):

  • FM: 247
  • AM: 130
  • LPFM: 62
  • Full-power TV: 45
  • Low power TV: 26
  • Class A TV: 5

WS stations on the air include WSAA (FM, Benton, TN), WSDV (AM, Sarasota, FL), WSHN (FM, Munising, MI), WSLJ (FM, Watertown, NY), WSOU (FM, South Orange, NJ), WSTG (FM, Princeton, WV).

The newest WS call: WSLY-LP, a new station's first call sign on July 14, 2026.

Among the spare ones: 16 used by a ship or shortwave station, 10 old ship calls whose license lapsed. Run any of them through Call Sign Check before you file.

All spare WS call signs

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

WSAC WSAD WSAF WSAH WSAO WSAP WSAS WSBD WSBE WSBJ WSBM WSBO WSBP WSBQ WSCE WSCJ WSCK WSCP WSCU WSCX WSDB WSDD WSDG WSDJ WSDN WSDT WSDU WSDY WSED WSEF WSEM WSEP WSEQ WSER WSEX WSEY WSFE WSFF WSFG WSFH WSFK WSFO WSFU WSFY WSGK WSGQ WSGU WSGY WSGZ WSHQ WSHZ WSID WSIH WSII WSIJ WSIK WSIT WSIV WSIW WSIY WSJG WSJI WSJJ WSJX WSKD WSKF WSKH WSKJ WSKM WSKR WSKT WSMM WSMQ WSNA WSNB WSNF WSNK WSNM WSNQ WSNU WSNV WSNZ WSOA WSOB WSOD WSOI WSOP WSOQ WSOW WSOZ WSPH WSPS WSPU WSPV WSPW WSPZ WSQB WSQD WSQI WSQJ WSQK WSQO WSQP WSQQ WSQS WSQT WSQU WSQW WSQZ WSRH WSRL WSRO WSSA WSSD WSSE WSSK WSSN WSSO WSSS WSSZ WSTD WSUD WSUH WSUJ WSUK WSUO WSUQ WSUT WSUU WSUV WSUY WSUZ WSVC WSVD WSVE WSVK WSVR WSVY WSWA WSWK WSWM WSWQ WSWU WSWX WSWZ WSXA WSXB WSXC WSXD WSXE WSXF WSXG WSXH WSXI WSXJ WSXK WSXL WSXM WSXN WSXO WSXP WSXR WSXS WSXT WSXU WSXV WSXW WSXX WSXY WSXZ WSYA WSYF WSYG WSYH WSYI WSYJ WSYK WSYL WSYQ WSYS WSYU WSYV WSYZ WSZA WSZB WSZC WSZD WSZE WSZF WSZG WSZH WSZI WSZJ WSZK WSZL WSZM WSZN WSZO WSZP WSZQ WSZR WSZS WSZT WSZU WSZV WSZW WSZX WSZY WSZZ

← WR call signs All prefixes WT 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.