KNLT

105.7 KNLT was an Adult Contemporary station in Anchorage, Alaska from 2009 until 2012. 

WQED

89.3 WQED is a Classical/Fine Arts and News station in Pittsburgh, Pennsylvania.  They went on the air in January, 1973.

91 FM

91 FM in Auckland, New Zealand began broadcasting in 1983 with the call letters 1MJK (they were known as "Magic 91" at the time).  According to this website, 91 FM was the first full-time commercial FM radio station in New Zealand.  In the early 1990s they were branded as the "Rock of the 90's" but by 1993 had changed to "The Breeze".  91.0 FM is currently part of the ZM radio network of CHR stations located throughout the country.

91 FM either hired or sponsored a team of what was New Zealand's first cheerleading squad circa 1988.

WXXR

WXXR "X97.3 FM" plays Alternative Rock in Terre Haute, Indiana.  The 100-watt LPFM station went on the air in 2014.  Right around their one year anniversary, WXXR's signal was allegedly hacked by the activist group Anonymous which broadcast a message for 30 minutes before returning to music.  The FCC and FBI investigated the incident which would be a jailable offense if it was a publicity stunt.  It's unclear why Anonymous would choose a low-power station in the middle of the country to hack into and I was unable to find the results of the FCC's investigation.

Radio F

Radio F (aka Radio Franken) is a private station broadcasting a Middle-of-the-Road format aimed at a 40+ audience.  They went on the air on December 3, 1986 in Nuremberg, Germany.

Merry Christmas! - KEGL

"Sunny 97.1" was a short-lived Adult Contemporary station in Dallas, Texas from May, 2004 until August, 2005.  After flipping to Spanish as "La Preciosa", KEGL once again became "The Eagle", a branding they started using in 1981.

WDRC AM & FM

1360 AM WDRC (W Doolittle Radio Corporation) is a News/Talk station in Hartford, Connecticut.  Just like the above magnet says, they were the first radio station in the state having gone on the air in New Haven as WPAJ in December, 1922.

102.9 WDRC-FM was an Oldies/Classic Hits station operating from 1986 until early 2015.

WDRC-FM now carries a Classic Rock format branded as "102.9 The Whale".

Capital FM

Capital FM broadcast in Bern, Switzerland from 2006 until 2013.  They have since been renamed as "Radio Bern 1".

Hit Radio Vest

Hit Radio Vest is heard on three frequencies in Germany's Recklinghausen District.  In 2010 they dropped the "Hit" from their branding and are known now as just "Radio Vest".  The station started out in 1991 as "Radio FiV."

WTMT

WTMT "105.9 The Mountain" is a Mainstream Rock station licensed to Weaverville, North Carolina.
Another WTMT sticker can be seen here.

WMSJ

89.3 WMSJ was a Contemporary Christian station in Portland, Maine from 1997 until 2015. 

They could also be heard on translator W260AS at 99.9 FM licensed to Lawrence, Massachusetts.  "Positive FM" was sold and gobbled up by the Educational Media Foundation in June, 2015 and flipped to their gigantic "K-LOVE" radio network.

WJPH

89.9 WJPH is a Religious station licensed to Woodbine, New Jersey.

WENN

Birmingham Alabama's AM 1320 WENN is historically best known for broadcasting to an African-American audience throughout the turbulent 1960s.  In 1969 WENN launched an FM sister station at 107.7 FM (which is now WUHT "Hot 107.7").

WAGO

"Go Mix! Radio" is a network of 8 Christian music stations throughout eastern North Carolina.  The network flagship is 88.7 FM WAGO licensed to Snow Hill, NC.  They went on the air in 1998.

KTCY

"La Mejor 104.9 FM" was a Spanish station licensed to Pilot Point, Texas near Dallas circa 1999.

KOQO

"Super Q" 101.9 FM KOQO was a Spanish station in Fresno, California circa 2005.  The frequency is currently home to Regional Mexican KLNB "La Buena".

KARI

550 AM KARI is a Religious Talk station licensed to Blaine, Washington.

XETRA

"The Mighty 690" was a 50,000-watt, border blaster Top-40 station licensed to Tijuana, Baja California circa the early 1980s.  Even though it was based in Mexico, its huge signal allowed it to cover not only San Diego but all of Los Angeles as well.
A former XETRA intern runs an online tribute to "The Mighty 690" which can be found here.

WQPC

WQPC "Q94 FM" is a Country station licensed to Prairie Du Chien, Wisconsin.

KMO

1360 AM in Tacoma, Washington carried the KMO call letters from 1922 until 1984.  The station is now KKMO and carries a Regional Mexican format as "El Rey 1360 AM".

CKIA

CKIA is a French-language, community radio station in Quebec City, Quebec.  In 2001 "Radio Basse-Ville" moved from 96.1 FM to 88.3 FM in order to increase its power from 6.8 watts to 350 watts.

WXYV

"Live 105.7" WXYV was a Talk station in Baltimore, Maryland from 2003 until 2006. 

WFIX

1450 AM in Huntsville, Alabama carried the call letters WFIX from 1960 until 1990.  The frequency is now home to Talk/Sports station WTKI.

East FM

East FM originates from the Söderköping Municipality in southeastern Sweden.  Their history dates back to 1989 when they appeared at 89.0 on the FM dial.  They carry a hit music format including R&B, Dance and Alternative music and currently broadcasts at 103.2 and 100.9 FM

Antenne Bethel

Antenne Bethel is a non-commercial, volunteer-run station based in Bielefeld-Bethel, Germany.

WXXQ

"Q98.5" WXXQ is an 11,000-watt Country station licensed to Freeport, Illinois.

Parties

"Long Island's Party Station" WPTY "Party 105.3" is a Dance/Rhythmic staion licensed to Calverton-Roanoke, New York.

"92.7 Party" KPTI was a Dance station in San Francisco, California.  They were on the air less than two years from May, 2002 until March, 2004.  92.7 FM is currently Top-40 KREV.  KPTI was licensed to Alameda, CA.

"95.7 The Party" is a Top-40 station licensed to the Denver suburb of Parker, Colorado.  KPTT first went on the air in 2006 and carried a Rhythmic AC format.