List of channel numbers assigned to FM frequencies in North America

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. However, each FM frequency has also been assigned a channel number, which ranges from 200 to 300."Why Do FM Frequencies End in an Odd Decimal?" (fcc.gov)

FM channel numbers are most commonly used for internal regulatory purposes. The range originally adopted in 1945 began with channel 201 (88.1 MHz), or a value high enough to avoid confusion with television channel numbers,"FCC Adopts FM Set Numbering System", Broadcasting, November 19, 1945, page 4. which over the years have had values ranging from 1 to 83. Having a gap between the highest TV channel number and the lowest FM channel number allowed for expansion, which occurred in 1978 when FM channel 200 (87.9 MHz) was added."FCC moves to overhaul rules for noncommercial radio and TV", Broadcasting, June 12, 1978, page 50.

FM channel numbers are commonly used for listing FM Station Allotments, which are the FM station assignments designated for individual communities. In the United States they are also used in the callsigns of low-powered FM translators relaying AM or FM station signals. For example, the "237" in the callsign for translator K237FR in Tumwater, Washington indicates that the station is transmitting on channel 237, which corresponds to 95.3 MHz.

FrequencyChannel 87.9 MHz 200 88.1 MHz 201 88.3 MHz 202 88.5 MHz 203 88.7 MHz 204 88.9 MHz 205 89.1 MHz 206 89.3 MHz 207 89.5 MHz 208 89.7 MHz 209 89.9 MHz 210 90.1 MHz 211 90.3 MHz 212 90.5 MHz 213 90.7 MHz 214 90.9 MHz 215 91.1 MHz 216 91.3 MHz 217 91.5 MHz 218 91.7 MHz 219 91.9 MHz 220 92.1 MHz 221 92.3 MHz 222 92.5 MHz 223 92.7 MHz 224 92.9 MHz 225 FrequencyChannel 93.1 MHz 226 93.3 MHz 227 93.5 MHz 228 93.7 MHz 229 93.9 MHz 230 94.1 MHz 231 94.3 MHz 232 94.5 MHz 233 94.7 MHz 234 94.9 MHz 235 95.1 MHz 236 95.3 MHz 237 95.5 MHz 238 95.7 MHz 239 95.9 MHz 240 96.1 MHz 241 96.3 MHz 242 96.5 MHz 243 96.7 MHz 244 96.9 MHz 245 97.1 MHz 246 97.3 MHz 247 97.5 MHz 248 97.7 MHz 249 97.9 MHz 250 FrequencyChannel 98.1 MHz 251 98.3 MHz 252 98.5 MHz 253 98.7 MHz 254 98.9 MHz 255 99.1 MHz 256 99.3 MHz 257 99.5 MHz 258 99.7 MHz 259 99.9 MHz 260 100.1 MHz 261 100.3 MHz 262 100.5 MHz 263 100.7 MHz 264 100.9 MHz 265 101.1 MHz 266 101.3 MHz 267 101.5 MHz 268 101.7 MHz 269 101.9 MHz 270 102.1 MHz 271 102.3 MHz 272 102.5 MHz 273 102.7 MHz 274 102.9 MHz 275 FrequencyChannel 103.1 MHz 276 103.3 MHz 277 103.5 MHz 278 103.7 MHz 279 103.9 MHz 280 104.1 MHz 281 104.3 MHz 282 104.5 MHz 283 104.7 MHz 284 104.9 MHz 285 105.1 MHz 286 105.3 MHz 287 105.5 MHz 288 105.7 MHz 289 105.9 MHz 290 106.1 MHz 291 106.3 MHz 292 106.5 MHz 293 106.7 MHz 294 106.9 MHz 295 107.1 MHz 296 107.3 MHz 297 107.5 MHz 298 107.7 MHz 299 107.9 MHz 300

References