Notes: ^A In the 2.4 GHz bands bonded 40 MHz channels are uniquely named by the primary and secondary 20 MHz channels, e.g. 9+13. In the 5 GHz bands they are denoted by the center of the wider band and the primary 20 MHz channel e.g. 42[40] ^B In the US, 802.11 operation on channels 12 and 13 is allowed under low power conditions. The 2.4 GHz Part 15 band in the US allows spread-spectrum operation
![List of WLAN channels - Wikipedia](https://cdn-ak-scissors.b.st-hatena.com/image/square/7b2079be5a35030e1a688455a2d79be4adfa67e0/height=288;version=1;width=512/https%3A%2F%2Fupload.wikimedia.org%2Fwikipedia%2Fcommons%2Fthumb%2F8%2F8c%2F2.4_GHz_Wi-Fi_channels_%28802.11b%252Cg_WLAN%29.svg%2F720px-2.4_GHz_Wi-Fi_channels_%28802.11b%252Cg_WLAN%29.svg.png)