iRule command to allow IP range to access specific URL

you can use this if you want to block any specific ip to a vip - Restricting access to a virtual server by IP subnet (f5.com)

or please let me know if its only specific to urls?

hello ,

yes it is possible.. here is the example.. 

when HTTP_REQUEST {
    set srcip [IP::client_addr]
    if { [HTTP::header exists "X-Forwarded-For"] } {
        set srcip [HTTP::header "X-Forwarded-For"]
        #log local0. "USER-SOURCE $srcip"
    }
 
    if  { [HTTP::path] starts_with "/xzy" } {
        switch $srcip {
            "13.174.130.182" -
            "31.121.101.157" -
            "35.77.107.183" {
          ACCESS::disable
            }
        }
    }
}