Can I buy and use a different Netgear internet router and still use the internet like nothing happened?

-I have an old netgear DG3008Gv2 or something similar and I want a newer Netgear Wireless N300 Modem Router



I'm contract with AOL



Can i just literally take the old one out and plug this in (with the First time setup ofcourse) and im all done? no need to call AOL or NETGEAR for anything?