I have been ringing it all morning, do you hear the ringing?
Check the cloths washer. I found my wifes phone in a pair of jeans one time, perhaps you washed it?
Seriously, how do propose we assist in locating your phone. Did you install a locator app? Maybe you shpuld contact your phone carrier and see of there is a signal that is active and THEY can assist. Contact your local authorities and file a stolen property incident so they can help locally.