Reverse phone lookup is already a popular online service. There are websites that offer this service for free since they function similar to white or yellow pages. However, these websites do not extend their search through mobile phones. But that does not mean searching information online based on mobile phone is impossible. There are also companies that offer reverse phone lookup for mobile phones. Although this service comes with a small fee, the service they provide are more up-to-date and accurate compared to free reverse lookup.

Because of the improvement of technology, reverse phone lookup is no longer limited to landlines and mobile phones. Profiles or accounts attached to a specific email can also be searched. Like the reverse mobile phone lookup, this service comes with a fee. The results can also be obtained in an instant.

The basic information provided by reverse lookup for mobile phones are usually limited to names and addresses. For email lookup, the basic information provided is the name, address and the possible internet service provider or ISP. But most of these reverse lookup websites can provide additional information, if possible. For example, mobile phone reverse lookup sites can find out other phone numbers associated with the name and address. Even the previous addresses of the phone number owner can be searched by these sites. This type of search is also possible for reverse email lookup.

Both services even extend their search to criminal background check. Using the name, number and/or address, the reverse lookup company can search for criminal backgrounds of the account holder. Of course, this extended functionality will require a small additional fee. But these websites usually offer a one time service charge or annual membership for unlimited lookup of email and/or mobile phone number.

But why conduct a reverse lookup search? The common reason why individuals would opt to search for information on unknown phone numbers and emails is security. Some people can be bombarded with prank or threatening phone calls that they need to know the source of these calls. Those who receive spam emails can also use the reverse lookup sites to stop spammers from sending such emails. This service can even be used by parents on unknown numbers or emails received by their children. Some can also use this service to determine if their partner is cheating.

Ultimately, reverse mobile and email lookup can easily uncover the identity of unknown calls and emails. People can protect their privacy and family through these simple, affordable yet very important online services.