Would a raspberry Pi 3 Model B be able to be powered by the usb connection from a router?

HI. Would a raspberry Pi 3 Model B be able to be powered by the usb connection from a router or would it require a greater power source? Thanks

no typically the usb sockets on routers are only rated at 5volts 500mA, for the newest raspberry pi you need at least a 5.1vdc 3amp power supply such as

Raspberry pi 4 : https://raspberry.piaustralia.com.au/raspberry-pi-psu-au-w-src-raspberrypi
Raspberry pi 3 and below : https://raspberry.piaustralia.com.au/little-bird-power-supply-for-raspberry-pi