Cell phone use has increased tremendously over the past decade. As a result, not only are more people using cell phones, but more people are relying on communication through cell phones. When an individual is not able to be reached by cell phone, then locating him can pose a problem, but there are ways to locate a person when his cell phone is turned off.
Email the person. Most individuals have an email address that is routinely checked.
Check online social networks to locate the person. Social network sites such as Twitter, Face Book and Linked In have individuals listed and each allows the members to receive communication.
Call the person's friends for help in locating him. Friends may know how to reach the person if the cell phone is off and may be able to provide you with more insight on the location of the individual.
Locate family members and contact the family members to see if they know where the person is located.
Call or visit their work location. Most people have a source of income, and if the work location is known, a simple phone call could reconnect you to the person.
Locate the person's home address and call or visit him at home. There are websites that provide addresses and phone numbers of individuals if you know which state they reside in.
Perform an Internet search of the person's name. Use search engines such as Google, Yahoo and Bing to locate the person. The individual could also have an Internet business or be named on various Internet sites.
If you don't know the person very well, be careful not to breach etiquette by visiting someone's home or work unannounced.
Be careful not to strike fear in a person you are trying to locate. Individuals know when cell phones are turned off and may need the privacy that turning a cell phone off affords them.