A quick check on google provided the following information regarding location:
Prefix (707) 337- is primarily in Napa, California, and includes 470 phone numbers.
Area Code
707
City/State:
Napa, CA
ZIP (primary):
94574
County:
Napa
Type:
Mobile
Company/Carrier:
Cellco Partnership Dba Verizon Wireless - Ca
Time Zone:
Pacific (10:41 pm)
....Or you could have just looked at his profile info. Lol