The default router IP addresses start with '192.168...'; IPs for devices connected to the router normally start with the same numbers, are there other Verizon Fios IPs associated with my home router for example '72.92...'.,'98.115...'.
192.168.1.x are local IP’s from the router. 72.92.x.x is your main IP that you get from Verizon. You only get one main IP(WAN) and all your devices share that IP to get to the internet. The router manages this by giving local IP’s to each device.
Think of it like you have one landline phone number but have a phones in each room of your house.