These were allocated worldwide, while the 10 meter band (28 MHz) was created by the Washington International Radiotelegraph Conference on 25 November 1927.
Need olid reserveeritud ülemaailmselt, samal ajal, kui 25. novembril 1927. aastal loodi 10 meetri laineala (28 MHz) Washington International Radiotelegraph Conference'i poolt.