Summarize:

The account number is usually displayed on your monthly bill. For example, if your ISP is CenturyLink, go to http://www.centurylink.com/. If you do not know the website for your ISP, go to Google or your preferred search engine and type the name of your ISP into the search field. ” In some cases, the email option may also read as “WebMail,” or “Inbox.” For example, if your ISP is Cox Communications, you will be required to point to “My Account” and select “WebMail Inbox” from the Cox Communications home page.  The process will vary depending on the requirements in place by your ISP. Contact your ISP directly if you need additional support with setting up an email account.
Obtain the account number associated with the service you have set up through your ISP. Navigate to the website for your ISP. Search the home page of your ISP for any links labeled as “Email” or “Mail. Select the option to create or register for an email account. Follow the on-screen prompts to create an email account with your ISP.