It used to be that everyone had a landline phone in their home and searching for a phone number or address was a matter of opening the phone book and finding their name. Things have grown more difficult now that cell phones are in common use and many people do not even have home phones, and if they do their number may be unpublished.

Even with the widespread use of caller ID on most landlines, a lot of numbers may appear without an identifying name and there are ways for callers to stop their name from coming up. Reverse phone lookup directories have stepped up to these changing demands to provide a very useful service to modern phone users.

There are two typical functions for these directories.

Finding Names

If you are receiving calls from someone and only a number shows on your caller ID, or you need to identify cell phone callers, reverse phone lookup services can assist in finding the name registered to the number in question. Just by entering the phone number you will have access to whoever is behind those bothersome phone calls.

People looking for this service include those wanting to identify a number frequently phoning their spouse or children's cell phone, since there is no public directory for cell phone numbers. Other people may use this when they want to find a name registered to a landline that is unlisted. Whenever you have a phone number but aren't sure who it is connected to, a reverse phone lookup directory can assist you.

Locating Addresses

The other typical function is to find an address for someone, whether you know their name or not. Once you plug into the contact information connected with a particular number most services will deliver other sorts of data as well, such as the address of the home phone or an address listed to a cell phone number.

This may not be a common need for most people, but it does have its uses in quite a few situations. For instance, consider a parent in a rush to locate a teenager who has run off or has not returned home long after curfew. If they can find phone numbers from the teenager's belongings or cell phone a lookup directory could quickly reveal addresses and names of places the teenager may be located.

Other situations may be searching for addresses to send out party invitations to your child's peers. If you have a phone number you can find their address and easily deliver the invite without calling or tracking down other busy family.

These services can also give you a connection to other sorts of information, including income brackets or address histories, and one site even gives a map with an general pinpoint to the business or home's location.

There is a nominal price for any relevant reverse phone lookup service, but if your business or personal life requires particular information it is worth the money in the end. The fee is unavoidable because this sort of information is not easy or completely free to research, collect, and store, so dispensing it immediately to people such as you must also include a charge to account for these working expenditures.

There likely will never be a phone book for cell phone numbers, and even if there were it is probable the majority of the numbers would be unpublished as is the case with many landline numbers right now. The only way to gain access to such numbers is to pay a minor fee either to do a single number search or to join a lookup directory if you will be using the service long term.