Examples of UHF frequency allocations

UHF frequency in Australia
UHF Citizens Band: 476–477 MHz
Television broadcasting uses UHF channels between 503 and 694 MHz

UHF frequency in Canada
430–450 MHz: Amateur radio (ham – 70 cm band)
470–806 MHz: Terrestrial television (with select channels in the 700 MHz band left vacant)
1452–1492 MHz: Digital Audio Broadcasting (L band)[4]
Many other frequency assignments for Canada and Mexico are similar to their US counterparts

UHF frequency in United Kingdom
380–399.9 MHz: Terrestrial Trunked Radio (TETRA) service for emergency use
430–440 MHz: Amateur radio (ham – 70 cm band)
446.0–446.1;MHz: Private mobile radio
446.1–446.2;MHz: Digital private mobile radio
457–464 MHz: Scanning telemetry and telecontrol, assigned mostly to the water, gas, and electricity industries
606–614 MHz: Radio microphones and radio-astronomy
470–862 MHz: Previously used for analogue TV channels 21–69 (until 2012).
Currently channels 21–35, 37 and 39–60 are used for Freeview digital TV.[5] Channel 36 is used for radar; channel 38 was used for radio astronomy but has been cleared to allow PMSE users access on a licensed, shared basis.
791–862 MHz,[6] i.e. channels 61–69 inclusive were previously used for licensed and shared wireless microphones (channel 69 only), has since been allocated to 4G cellular communications.
863 – 865 MHz: Used for licence-exempt wireless systems.
863–870 MHz: Short range devices, LPWAN IoT devices such as NarrowBand-IoT.
870–960 MHz: Cellular communications (GSM900 – Vodafone and O2 only) including GSM-R and future TETRA
1240–1325 MHz: Amateur radio (ham – 23 cm band)
1710–1880 MHz: 2G Cellular communications (GSM1800)
1880–1900 MHz: DECT cordless telephone
1900–1980 MHz: 3G cellular communications – mobile phone uplink
2110–2170 MHz: 3G cellular communications – base station downlink
2310–2450 MHz: Amateur radio (ham – 13 cm band)

UHF frequency in United States
UHF channels are used for digital television broadcasting on both over the air channels and cable television channels. Since 1962, UHF channel tuners (at the time, channels 14-83) have been required in television receivers by the All-Channel Receiver Act. However, because of their more limited range, and because few sets could receive them until older sets were replaced, UHF channels were less desirable to broadcasters than VHF channels (and licenses sold for lower prices).
A complete list of US Television Frequency allocations can be found at North American Television Frequencies.
There is a considerable amount of lawful unlicensed activity (cordless phones, wireless networking) clustered around 900 MHz and 2.4 GHz, regulated under Title 47 CFR Part 15. These ISM bands – frequencies with a higher unlicensed power permitted for use originally by Industrial, Scientific, Medical apparatus – are now some of the most crowded in the spectrum because they are open to everyone. The 2.45 GHz frequency is the standard for use by microwave ovens, adjacent to the frequencies allocated for Bluetooth network devices.
The spectrum from 806 MHz to 890 MHz (UHF channels 70–83) was taken away from TV broadcast services in 1983, primarily for analog mobile telephony.
In 2009, as part of the transition from analog to digital over-the-air broadcast of television, the spectrum from 698 MHz to 806 MHz (UHF channels 52–69) was removed from TV broadcasting, making it available for other uses. Channel 55, for instance, was sold to Qualcomm for their MediaFLO service, which is resold under various mobile telephone network brands. Some US broadcasters had been offered incentives to vacate this channel early, permitting its immediate mobile use. The FCC’s scheduled auction for this newly available spectrum was completed in March 2008.
The FCC has allowed Americans to connect any device and any application to the 22 MHz of radio spectrum that people are calling the 700 MHz band. The FCC did not include a wholesale condition, which would have required the owner of the band to resell bandwidth to third parties who could then service the end user. Google argued that the wholesale requirement would have stimulated internet competition. As of 2007, 96% of the country’s broadband access was controlled by DSL and cable providers. A wholesale condition could have meant a third option for internet service.
225–420 MHz: Government use, including meteorology, military aviation, and federal two-way use
420–450 MHz: Government radiolocation and amateur radio (70 cm band)
433 MHz: Short range consumer devices including automotive, alarm systems, home automation, temperature sensors
450–470 MHz: UHF business band, General Mobile Radio Service, and Family Radio Service 2-way “walkie-talkies”, public safety
470–512 MHz: Low-band TV channels 14–20 (shared with public safety land mobile 2-way radio in 12 major metropolitan areas scheduled to relocate to 700 MHz band by 2023
512–608 MHz: Medium-band TV channels 21–36
608–614 MHz: Channel 37 used for radio astronomy and wireless medical telemetry
614–698 MHz: Mobile broadband shared with TV channels 38–51 auctioned in April 2017. TV stations will relocate by 2020.
617–652 MHz: Mobile broadband service downlink
652–663 MHz: Wireless microphones (higher priority) and unlicensed devices (lower priority)
663–698 MHz: Mobile broadband service uplink
698–806 MHz: Was auctioned in March 2008; bidders got full use after the transition to digital TV was completed on June 12, 2009 (formerly high-band UHF TV channels 52–69)
806–816 MHz: Public safety and commercial 2-way (formerly TV channels 70–72)
817–824 MHz: ESMR band for wideband mobile services (mobile phone) (formerly public safety and commercial 2-way)
824–849 MHz: Cellular A & B franchises, terminal (mobile phone) (formerly TV channels 73–77)
849–851 MHz: Commercial aviation air-ground systems (Gogo)
851–861 MHz: Public safety and commercial 2-way (formerly TV channels 77–80)
862–869 MHz: ESMR band for wideband mobile services (base station) (formerly public safety and commercial 2-way)
869–894 MHz: Cellular A & B franchises, base station (formerly TV channels 80–83)
894–896 MHz: Commercial aviation air-ground systems (Gogo)
902–928 MHz: ISM band, amateur radio (33 cm band), cordless phones and stereo, radio-frequency identification, datalinks
929–930 MHz: Pagers
931–932 MHz: Pagers
935–941 MHz: Commercial 2-way radio
941–960 MHz: Mixed studio-transmitter links, SCADA, other.
960–1215 MHz: Aeronautical radionavigation
1240–1300 MHz: Amateur radio (23 cm band)
1452–1492 MHz: Military use (therefore not available for Digital Audio Broadcasting, unlike Canada/Europe)
1525–1559 MHz: Skyterra downlink (Ligado is seeking FCC permission for terrestrial use)
1559–1610 MHz: Radio Navigation Satellite Services (RNSS) Upper L-band
1563–1587 MHz: GPS L1 band
1593–1610 MHz: GLONASS G1 band
1959–1591 MHz: Galileo E1 band (overlapping with GPS L1)
1610–1660.5 MHz: Mobile Satellite Service
1610–1618: Globalstar uplink
1618–1626.5 MHz: Iridium uplink and downlink
1626.5–1660.5 MHz: Skyterra uplink (Ligado is seeking FCC permission for terrestrial use[12])
1675–1695 MHz: Meteorological federal users
1695–1780 MHz: AWS mobile phone uplink (UL) operating band
1695–1755 MHz: AWS-3 blocks A1 and B1
1710–1755 MHz: AWS-1 blocks A, B, C, D, E, F
1755–1780 MHz: AWS-3 blocks G, H, I, J (various federal agencies transitioning by 2025)
1780–1850 MHz: exclusive federal use (Air Force satellite communications, Army’s cellular-like communication system, other agencies)
1850–1920 MHz: PCS mobile phone—order is A, D, B, E, F, C, G, H blocks. A, B, C = 15 MHz; D, E, F, G, H = 5 MHz
1920–1930 MHz: DECT cordless telephone
1930–2000 MHz: PCS base stations—order is A, D, B, E, F, C, G, H blocks. A, B, C = 15 MHz; D, E, F, G, H = 5 MHz
2000–2020 MHz: lower AWS-4 downlink (mobile broadband)
2020–2110 MHz: Cable Antenna Relay service, Local Television Transmission service, TV Broadcast Auxiliary service, Earth Exploration Satellite service
2110–2155 MHz: AWS mobile broadband downlink
2110–2155 MHz: AWS-1 blocks A, B, C, D, E, F
2155–2180 MHz: AWS-3 blocks G, H, I, J
2180–2200 MHz: upper AWS-4
2290–2300 MHz: NASA Deep Space Network
2300–2305 MHz: Amateur radio (13 cm band, lower segment)
2305–2315 MHz: WCS mobile broadband service uplink blocks A and B
2315–2320 MHz: WCS block C (AT&T is pursuing smart grid deployment)
2320–2345 MHz: Satellite radio (Sirius and XM)
2345–2350 MHz: WCS block D (AT&T is pursuing smart grid deployment)
2350–2360 MHz: WCS mobile broadband service downlink blocks A and B
2360–2390 MHz: Aircraft landing and safety systems
2390–2395 MHz: Aircraft landing and safety systems (secondary deployment in a dozen of airports), amateur radio otherwise
2395–2400 MHz: Amateur radio (13 cm band, upper segment)
2400–2483.5 MHz: ISM, IEEE 802.11, 802.11b, 802.11g, 802.11n wireless LAN, IEEE 802.15.4-2006, Bluetooth, radio-controlled aircraft, microwave ovens, ZigBee
2483.5–2495 MHz: Globalstar downlink and Terrestrial Low Power Service suitable for TD-LTE small cells