It used to be that everyone had a standard phone in their home and locating a phone number or address simply required opening the yellow pages and finding the name. This has become more difficult now that cell phones are widely used and many people do not even have home phones, and if they do their number may be unpublished.

Even with the development of caller ID on most landlines, many numbers may come up without an identifying name and there are ways for callers to block their name from coming up. Reverse phone lookup services have responded to these changing times to provide a very timely service to resourceful phone users.

There are two typical uses for these directories.

Locating Names

If you are getting calls from someone and only a number comes up on your caller ID, or you want to figure out cell phone callers, reverse phone lookup directories can help you find out the name listed to the number in question. Just by typing in the phone number you will be able to identify the person who is behind those phone calls in question.

People needing such services include those who need to identify a number constantly texting their spouse or teenager's cell phone, since there is no accessible directory for cell phone numbers. Others may use lookup directories when they want to identify a name listed to a home phone that is unpublished. Whenever you have a phone number but don't know who it is connected to, a reverse phone lookup service can assist you.

Finding Addresses

The other typical purpose is to locate an address for someone, whether you know the name of the person or not. Once you plug into the contact information linked with a particular phone number most directories will deliver additional data as well, which includes the address of an home phone or the address associated with a cell phone number.

This may not be an everyday need for most people, but it does have its benefits in some situations. Such as a parent needing to locate a teenager who has run away or is still out well past curfew. If they can come up with numbers from the teenager's bedroom or cell phone a reverse phone lookup could quickly uncover addresses as well as names of locations the teenager may be located.

More common situations may be searching for addresses to mail out party invitations to your child's classmates. If you have their phone number you can find their address and get the invite in the mail without calling or tracking down other busy people.

Lookup directories can also give you access to other kinds of data, such as income brackets or previous addresses, and one site even gives a map with an rough pinpoint to the business or home's location.

There is a small charge for any legitimate reverse phone lookup service, but if your business or personal situation demands particular information it is money well spent in the long run. The charge is required because this kind of information is not easy or completely free to research, compile, and save, so dispensing it on demand to others such as you must also come with a fee to cover such serviceable costs.

There more than likely will never be a phone book for cell phone numbers, and even if there were most likely many of the numbers would be unlisted as is the case with many landline numbers right now. The only way to gain access to such phone numbers is to put up a small charge either to do a single number search or to join a lookup directory if you will need to access the directory on a regular basis.