A frequency of 23808 GHz falls within the terahertz (THz) range of the electromagnetic spectrum.

Here's why:

* Gigahertz (GHz) is a unit of frequency, where 1 GHz equals 1 billion Hertz.

* Terahertz (THz) is a unit of frequency, where 1 THz equals 1 trillion Hertz.

* Therefore, 23808 GHz is equivalent to 23.808 THz.

This frequency range is often referred to as T-rays or terahertz radiation.

Note: The electromagnetic spectrum is a continuous range of frequencies, and there's no hard and fast boundary between different types. However, this frequency falls within the generally accepted range for terahertz radiation.