Phone reverse lookup services can be handy in times when you may be gone for quite some time and need to know who the legitimate callers were from the anonymous numbers that showed up on your answering machine. Having a phone reverse lookup subscription allows you to trace numbers and filtering out which numbers are from friends and which numbers are from pranksters. The phone reverse lookup services can also trace numbers for you for those people that may have changed their numbers and you are trying to run a trace in order to keep in touch. Another use for phone reverse lookup services is for people with businesses that have prank callers; with this service they can have the number traced, blocked and has the prankster answer to some form of legal liability. This service can be useful also in making background checks on a person, or when trying to catch an errant spouse. Phone reverse lookup services may sound too good to be true. A lot of reviews have been done on free phone reverse lookup sites and these sites do not provide much information other than if it is a landline or a cell phone number. Other paid phone reverse lookup sites give a full report of name of the phone owner, if it is a landline or a cell phone number and the carrier of the number. The same common sense must be applied when looking at phone reverse lookup sites online in order to determine which ones are scam sites and which ones deliver what they promise. As with any service, if it sounds too good to be true, try to look in another website. Scam sites will provide you information that you can already search in a phone directory by yourself. A lot of people encounter a lot of disappointment the first time they try to use phone reverse lookup sites because the services do not deliver what they expect from the service provider. Not only do they get disappointed when they are not able to get the information, they may have also spent a lot of time in the free sites trying to get information that gets them nowhere. Landline or regular phones have an existing directory and can be viewed since these are public domains unless the owner requests to have the number unlisted. Free phone reverse lookup sites can only provide this information and not listings of VOIP numbers, unlisted numbers and cell phone numbers. Paid phone reverse lookup sites can give you the information you need about a number that needs to be traced. There are limitations in this service though and every phone reverse lookup site will tell you this disclaimer. There are a lot of online directories where a person can run a search without using phone reverse lookup services. But definitely in this day and age, a phone reverse lookup is a must have in order to trace those unknown numbers for whatever purpose it may serve the person initiating the trace.