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In the Americas (defined as International Telecommunication Union (ITU) region 2), the FM broadcast band consists of 101 channels, each 200 kHz wide, in the frequency range from 87.8 to 108.0 MHz, with "center frequencies" running from 87.9 MHz to 107.9 MHz. For most purposes an FM station is associated with its center frequency.
In the United States, FM broadcasting stations currently are assigned to 101 channels, designated 87.9 to 107.9 MHz, within a 20.2 MHz-wide frequency band, spanning 87.8–108.0 MHz. In the 1930s investigations were begun into establishing radio stations transmitting on "Very High Frequency" (VHF) assignments above 30 MHz.
Pages in category "Lists of radio stations by frequency" ... 107.8 FM; 107.9 FM; 108.0 FM; 180 AM; 252 AM; 261 AM; 530 AM; 540 AM; 550 AM; 558 AM; 560 AM; 567 AM; 570 ...
Class B and D stations can be found on any frequencies from 540 kHz to 1700 kHz except where frequencies have been reserved for Class C stations. Class C stations can be found in the lower 48 US states on the frequencies of 1230 kHz, 1240 kHz, 1340 kHz, 1400 kHz, 1450 kHz, and 1490 kHz (commonly known as "graveyard" frequencies).
The center frequencies of the FM channels are spaced in increments of 200 kHz. The frequency of 87.9 MHz, while technically part of TV channel 6 (82 to 88 MHz), is used by just two FM class-D stations in the United States. Portable radio tuners often tune down to 87.5 MHz, so that the same radios can be made and sold worldwide.
List of AM radio stations in the United States by call sign (initial letters WG–WM) List of AM radio stations in the United States by call sign (initial letters WN–WS) List of AM radio stations in the United States by call sign (initial letters WT–WZ) List of FM radio stations in the United States by call sign (initial letters KA–KC)