The 5G bands are:

FR1 bands

• TDD: n34, n38, n39, n40, n41, n50, n51, n77, n78 and n79
• FDD: n1, n2, n3, n5, n7, n8, n12, n20, n25, n28, n66, n70, n71 and n74

FR2 bands

• TDD: n257, n258, n259, n260, n261, n262 and n263

5G and future generations of wireless communication utilize a wider range of radio frequencies compared to previous generations. Here's a breakdown of the spectrum used:

• Low-band (sub-1 GHz): This band offers good coverage over long distances but has lower data rates. It's often used for basic cellular service and Internet of Things (IoT) applications.
• Mid-band (1-6 GHz): This band offers a balance between coverage and capacity, making it suitable for many applications like video streaming and enhanced mobile broadband.
• High-band (above 6 GHz): This band, including millimeter wave (mmWave), offers ultra-fast data rates but has limited range and struggles to penetrate buildings. It's ideal for high-density areas and fixed wireless access.

6G and Beyond:

While 5G utilizes mmWave bands, 6G is expected to explore even higher frequencies, potentially reaching terahertz (THz) bands. These bands offer even greater data rates but come with even shorter range and higher implementation challenges.

There's ongoing research on using new technologies like visible light communication (LiFi) that could complement radio frequency bands in future wireless communication systems.

It's important to note that specific bands and subbands allocated for 5G and future generations can vary depending on regulations and licensing in different regions.