Which band contains the 2.45 GHz waves typically used in a household oven to heat food?

A household microwave oven heats food with electromagnetic waves of about 2.45 GHz, which lie in the microwave band (roughly 300 MHz to 300 GHz); they set water molecules in the food rotating, and the resulting friction produces heat. Infrared and ultraviolet radiation have far higher frequencies, and longwave radio waves far lower ones.