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Cellular Radiotelephone Service
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The 869-894 MHz band (base transmit/mobile receive), paired with the 824-849 MHz band (mobile transmit/base receive) is the original band in which first-generation cellular phone service was first widely deployed in the U.S. It is still used for 2G and 3G cellular services.
The paired band is subdivided into two smaller bands of 2x12.5 MHz each, referred to as the A block and the B block. When cell phone service was first authorized, the A block was assigned to the local exchange carrier, and the B block was assigned to a competitive local exchange carrier.
The cellular service in the United States is governed by Part 22 of the FCC's rules.
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Paired Frequency Bands |
| Paired Bands | Use | Service | Table |
| 824 - 835 MHz | Cellular A block, mobile transmit/base receive | Land Mobile | N |
| 869 - 880 MHz | Cellular A block, base transmit/mobile receive | Land Mobile 2 | N |
| 835 - 845 MHz | Cellular B block, mobile transmit/base receive | Land Mobile | N |
| 880 - 890 MHz | Cellular B block, base transmit/mobile receive | Land Mobile 2 | N |
| 845 - 846.5 MHz | Cellular A' block, mobile transmit/base receive | Land Mobile | N |
| 890 - 891.5 MHz | Cellular A' block, base transmit/mobile receive | Land Mobile 2 | N |
| 846.5 - 849 MHz | Cellular B' block, mobile transmit/base receive | Land Mobile | N |
| 891.5 - 894 MHz | Cellular B' block, base transmit/mobile receive | Land Mobile 2 | N |
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