Planning a big event can mean piecing together contact information. If you need to find name and address of many people at once, you need to have access to a database that crosses all contact lines. Public directories can only include landlines, which leave mobile and unlisted numbers out of the loop. In order to trace a phone number more efficiently, the directory needs to include all numbers.
You can track cell phone numbers and unlisted landlines with online reverse directories. These websites will charge a fee upfront for the information you need, but that is just because they have to. Not only does it cost money to buy the information you are looking for from landline and mobile providers, but privacy laws often push the directories toward a fee based search.
It is best to pay for a directory that allows unlimited searches when you are planning a big event. There is no telling how many single Colombia Phone Number List searches you would have to buy to complete your guest list, so paying for one at a time could be very expensive.
Once you have paid the fee, simply make a list of the numbers you need to find name and address for and trace phone number listings one by one. The time it takes with a paid directory will be far less than searching the entire Internet in hopes of making just one connection. Once you have saved all that time, you can focus on the event planning and make this get together the best one you, friends and family have ever attended.