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.

Found one you like? Check it before you file.

The FCC's own call sign search only looks at broadcast stations. Our free Call Sign Check also looks at FCC ship licenses and shortwave stations, tells you if a call was just released or is changing hands, and explains the rule behind every answer.

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 signs: stations west of the Mississippi River

W call signs: stations east of the Mississippi River

Found one you like? Check it before you file.

From the FCC's station, ship and shortwave records as of October 16, 2026, updated every morning. Not a product of the FCC.