0-9 | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
In frequency-division multiplexing, the rank of frequency bands occupied: (188)
| 12 channels | group |
| 5 groups (60 channels) | super group |
| 5 super groups (300 channels) | master group (CCITT) |
| 10 super groups (600 channels) | master group (U.S. standard) |
| 6 U.S. master groups (3600 channels) | jumbo group |