In order to upload your list of contacts to your account you need to go to click on the contact button from the menu at your left and click on Import. Once the import page opens, please click on Upload File. Make sure your list is separated by either tabs or commas in order for the list to be imported successfully. If your list has a header please click the corresponding box. Next, select if the list is separated by either tabs or commas and make sure your list is in the following format: +, country code, the number without any spaces or characters. Now select who will be the owner of the contacts. If you do not have multiple users you may keep main as the owner. If you have a contact group you want to add this list to, please do so by selecting the group in the box. Now all you have to do is click on the upload button and you should be all set. You can verify the contact upload by clicking on Contacts again to see the uploaded list there.