WRUR

WRUR went on the air from the University of Rochester in Rochester, New York as an AM station in 1948.  They moved to 90.1 FM in 1965 and shifted to their current 88.5 FM position four years later.  WRUR airs National Public Radio programming and Adult Album Alternative music and is now branded as "The Route."

WOMT

1240 AM WOMT has been on the air in Manitowoc, Wisconsin since November 1926.  They originally broadcast from the Mikadow Theater which was co-owned with the station and gave meaning to the MT in the call letters.  WOMT carries a Full Service/Adult Contemporary format and is also heard on a translator at 107.9 FM.
 

WGRK

AM 1550 WGRK went on the air in (W) GReensburg, Kentucky in 1972 with the FM following five years later.  The AM moved down a notch on the dial to 1540 in the late 1970s and eventually went dark in 2018.  WGRK FM is now located at 105.7 and plays Country music.
 

KPOF

Denver, Colorado's KPOF (K Pillar Of Faith) is one of the longest-running Religious stations in the United States.  They went on the air in 1927 with call letters KGEY but changed to a KPOF a little over a year later and have broadcast some form of Christian programming ever since.  They are now also heard on a translator at 102.7 FM.
 

KEPS

1270 AM KEPS was on the air in (K) Eagle PasS, Texas from 1957 to 2022.  Their last format was Tejano/Spanish Contemporary.
 

90.9 FM

A 2013 sticker from 90.9 FM in Aparecida, Brazil.  The URL on the decal no longer works and it appears they flipped the 9s to Ps and are now branded as Pop FM.

Radio Chanson

Radio Chanson 101.0 FM broadcasts from Samara, Russia.  Chanson is a Russian musical genre including "city romance songs, author song performed by singer-songwriters and blatnaya pesnya or "criminals' songs" that are based on the themes of the urban underclass and the criminal underworld."  Radio Chanson is heard on dozens of simulcast frequencies around the country.  I listened live and Shazamed the first song I heard.  Here it is for your listening (and viewing) pleasure.

EDIT:  OK, it's not the same exact song (I got my cyrillic letters messed up) but it is the same artist and sounds pretty much like the one I heard.

CKWX

A sticker and magnet from 1130 AM CKWX in Vancouver, British Columbia.  Their history goes back to 1923 when they were located in Nanaimo, BC and had the call letters CFDC.  The CKWX calls came into use four years later.  Multiple frequency changes took place over their first 30 years before settling at 1130 AM in 1957.  They were a Country station from 1973 to 1996 when they flipped to their current News/Talk format.

WWWA

95.3 FM WWWA is a Christian Adult Contemporary station licensed to Winslow, Maine.  In June 2022 they rebranded as "Reach FM"
 

WREK

91.1 FM WREK is the student-run radio station broadcasting from the Georgia Institute of Technology in Atlanta.  They went on the air in 1968 with a ten-watt signal and studio equipment donated by Nashville's WSM.  They now pump out an astounding (for a college station) 100,000-watts giving them coverage across the entire Atlanta metro area.  The WREK call letters are a direct reference to the Ramblin' Wreck, a 1930 Ford Model A Sport Coupe which has led Georgia Tech's football team onto the field for every home game since 1961.

WNFZ

94.3 FM in Knoxville, Tennessee became an Alternative Rock station in July 1994 with new call letters WNFZ.  Except for a brief time as a Talk station around 2013, they were either an Alternative or Active Rock station until 2019 when they flipped to Adult Hits as "Jack FM."  I'm not 100% sure that the top sticker was printed when they had the call letters WNFZ or WKNF.  WNFZ would make more sense given the "94Z" branding but it's hard to say.  If you know, leave a comment.
 

WKCY

1300 AM WKCY has been on the air in Harrisonburg, Viginia since 1967.  They currently carry a News/Talk format and are now also heard on a translator at 107.9 FM.
 

WFJO

"Jo 101.5" WFJO was a Rhythmic Oldies station in St. Petersburg, Florida from 1998 to 2002.
 

WCEM

106.3 FM WCEM is a Country station licensed to Cambridge, Maryland.  They are now branded as "Coast Country" and are also heard on 103.9 FM WRDE in Berlin, MD.  Prior to 2018 WCEM had a Hot Adult Contemporary format known as "The Heat."
 

Rivers

KKVR - Kerrville, Texas

KXRV - Centerville/Salt Lake City, Utah

KYSC - Fairbanks, Alaska

KRVO - Columbia Falls/Kalispell, Montana
 

KSJL AM & FM

96.1 FM KSJL was an Urban Adult Contemporary station in San Antonio, Texas starting in 1993.  By 1998 they had moved to 92.5 FM and were also simulcasting on KSJL 810 AM. 

KNNC

This fantastic sticker is from KNNC "107.7 K-Nack", an Alternative Rock station in Austin, Texas from 1991 to 1997.  I learned from a Facebook group that this cute kid was known as Psychobaby.
 

KJJJ

910 AM KJJJ was a Country station in Phoenix, Arizona from 1972 to 1985.
 

KCMX

580 AM KCMX was on the air in Ashland, Oregon from the early 1970s to 1999.  101.7 FM became KCMX in the early 1980s with a Top-40 format.  They now broadcast at 101.9 FM as an Adult Contemporary station branded as "Lite 102 FM"
 

CKRM

CJRM was founded in 1926 in Moose Jaw, Saskatchewan and broadcast on 665 AM.  Multiple frequency changes took place over the next two decades and by the mid-1940s they had the call letters CKRM and were now located in Regina, SK.  Another frequency shift to 620 AM took place in 2001.  CKRM has been a Country station since 1971.
 

WUSO

89.1 FM WUSO was the campus radio station at Wittenberg University in Springfield, Ohio.  They were on the air from 1966 until 2019.  WUSO was sold to Dayton Public Radio in 2023 and it now rebroadcasts the Classical music format of WDPR.
 

WPPT

WPPT "Pirate Radio 94.5 FM" was a Rock station in Panama City, Florida from 1997 to 2002.
 

WMEQ

A 1996 sticker from WMEQ in Menomonie, Wisconsin.  They still carry a Classic Rock format but are no longer branded as "Arrow 92.1"

WIBN

WIBN "98 Gold" is an Oldies station licensed to Earl Park, Indiana.  Their call letters refer to the nearest three counties of their listening area--Iroquois, Benton and Newton.  Anybody know the format from when they were known as "Interstate 98.1"?  Leave a comment.

EDIT:  See comments.
 

WDWN

"Win 89 FM" WDWN is the radio station at Cayuga Community College in Auburn, New York.

WAVM

91.7 FM WAVM (W Assabet Valley Maynard) broadcasts from Maynard High School in Maynard, Massachuetts.  They are on the air for limited hours during the school year and share the 91.7 frequency with WUMG, a rebroadcaster of Boston's WUMB.

KVOT

1340 AM KVOT is a Contemporary Christian station in Taos, New Mexico.  They are also heard on a translator at 98.1 FM.  At one time they were an affiliate of the liberal-leaning talk show network Air America.