dot11wavelen is a handy regulatory domain pocket reference for wireless networking professionals and enthusiasts. Look up frequency of IEEE 802.11 radio channels. See the channel number for 802.11 frequencies in 2.4GHz and 5GHz bands. Find available channels for 119 countries listed by their two letter ISO 3166 country codes. See how easy dot11wavelen is to use compared to online sources, especially when there is no internet access or when away from your desk or computer.

See more information about channels per country regulations: CCK modulation allowed; OFDM modulation allowed; DFS support required; HT40- operation allowed; HT20 operation allowed; HT40+ operation allowed; Outdoor use allowed; Maximum antenna gain; Maximum EIRP.

For trivia, dot11wavelen displays the wavelength of the selected channel in units of centimeters and inches. Tap the blue arrow to enjoy a simple wave animation then tap screen to switch between wave animation and graph.