WKAQ

580 AM WKAQ was the first radio station to broadcast in Puerto Rico having gone on the air in December 1922.  The 10,000-watt station is licensed to San Juan and carries a Spanish-language Talk format.  They are also simulcast on 1420 AM WUKQ licensed to Ponce, PR.
 

WFCC

107.5 FM WFCC (W First Class Communications--the original owners) is a Classical music station licensed to Chatham, Massachusetts on the southeast tip of Cape Cod.  The 50,000-watt outlet first went on the air in March 1987.
 

BBC Radio Merseyside

BBC Radio Merseyside launched in November 1967 from studios in Liverpool, England.  They ceased broadcasting on 1485 AM in 2020.
 

WCBW

104.9 FM WCBW was a Contemporary Christian station in St. Louis, Missouri.
 

KVIL

103.7 FM KVIL has been on the air in Dallas, Texas since August 1961.  These stickers and magnets date to when they carried an Adult Contemporary/Lite Rock format.  They currently air Alternative Rock as "Alt 103.7"
 

WJET

WJET "Jet 102" was on the air in Erie, Pennsylvania from 1986 to 2001.  Formats during those years included Top-40 (twice) Adult Contemporary and AOR.  Stickers from related station WJET AM can be seen here and here.
 

WCCK

"K104" WCCK was a Top-40 station in Erie, Pennsylvania from 1977 until the early 1990s.
 

KRKS

KRKS is a Religious station in Denver, Colorado now branded as "94.7 The Word."
 

WCFL

Chicago, Illinois' AM 1000 WCFL (W Chicago Federation of Labor) went on the air in June 1926.  They were initially listener-supported with broadcasts including music, labor and public affairs programs aimed at working-class listeners.  They eventually became more commercially oriented and by 1965 ran a Top-40 format.  Larry Lujack did afternoons on WCFL from 1972 until 1976.  In 1987 they flipped to Rock with call letters WLUP and then in 1993 switched to Sports as WMVP.
 

KNEX

106.1 KNEX was a CHR station in Laredo, Texas.
 

KGU

Honolulu's KGU signed on the air in 1922, thirty-seven years before Hawaii became a state.  In 1941 the Japanese used KGU's signal as a source for direction finding and navigation on their way to attack Pearl Harbor.  The 10,000-watt, clear-channel station currently broadcasts a Sports format and is now also heard on a translator at 95.1 FM.
 

KAYZ

103.1 FM KAYZ was a Country station in El Dorado, Arkansas from the late 1970s until around 1993.
 

CFQX

CFQX went on the air in 1981 and has carried a Country format since 1986.  They are licensed to Selkirk, Manitoba near Winnipeg.
 

WAQE

1090 AM and 97.7 FM WAQE both went on the air around the late 1970s or early 80s.  This long, 15" sticker probably dates to when they first began broadcasting.  The AM half is currently a Sports station licensed to Rice Lake, Wisconsin while the FM is Adult Contemporary "Star 97.7" licensed to Barron, WI.
 

WYKR

AM 1100 WYKR was on the air from 1976 until some time in the late 1990s and licensed to Wells River, Vermont.  They most likely carried a Country format when this keychain was made.
 

KYLZ

"Wild 106" KYLZ was a Rhythmic Contemporary station in Albuquerque, New Mexico from 1997 until 2005.
 

KHCA

"Angel 95" KHCA airs a mix of Christian Talk/Teaching with Contemporary Christian music.  They've been on the air in Manhattan, Kansas since 1990.

5SSA

5SSA "107.1 SAFM" is a Hot Adult Contemporary station in Adelaide, South Australia.  They went on the air in September 1980 at their original frequency of 107.5 FM.
 

Radio Ostbayern

I had a hard time finding much info on this either defunct or renamed station.  The old-style "BR" logo lets me know it was part of Bayerischer Rundfunk, the public service radio and TV broadcaster based in Munich, Germany.  If you have any further info on what became of Radio Ostbayern, leave a comment.
 

KKSN

A magnet from KKSN in Portland, Oregon, an Oldies station from 1988 until 2005.  The "KISN" branding was a tribute to a Top-40 station in Portland that broadcast at 910 AM and used those call letters from 1959 to 1976.  The video below is news coverage of the re-launched KISN/KKSN in 1988.  At that time they also broadcast on 910 AM, the original frequency of the first KISN.  Currently, there is a low-power Oldies outlet with the KISN calls airing at 95.1 FM which uses the logo of the original station.