Appendix B: Channel Allocations
The following tables list the channel numbers and center frequencies used for 802.11a and 802.11b/g. Note that while all of these frequencies are in the unlicensed ISM and U-NII bands, not all channels are available in all countries. Many regions impose restrictions on output power and indoor / outdoor use on some channels. These regulations are rapidly changing, so always check your local regulations before transmitting.
Note that these tables show the center frequency for each channel. Channels are 22MHz wide in 802.11b/g, and 20MHz wide in 802.11a.
802.11b / g
Channel # |
Center Frequency (GHz) |
Channel # |
Center Frequency (GHz) |
1 |
2.412 |
8 |
2.447 |
2 |
2.417 |
9 |
2.452 |
3 |
2.422 |
10 |
2.457 |
4 |
2.427 |
11 |
2.462 |
5 |
2.432 |
12 |
2.467 |
6 |
2.437 |
13 |
2.472 |
7 |
2.442 |
14 |
2.484 |
802.11a
Channel Number |
Center Frequency (GHz) |
34 |
5.170 |
36 |
5.180 |
38 |
5.190 |
40 |
5.200 |
42 |
5.210 |
44 |
5.220 |
46 |
5.230 |
48 |
5.240 |
52 |
5.260 |
56 |
5.280 |
60 |
5.300 |
64 |
5.320 |
149 |
5.745 |
153 |
5.765 |
157 |
5.785 |
161 |
5.805 |