Q. Is there an easier way to reach a company’s customer service or other departments—and avoid being on hold for what seems forever?

A. Just trying to get the correct phone number can be time-consuming. Some companies prefer that you contact them via e-mail—especially after you’ve purchased their goods and services—so they don’t readily publicize their department numbers. Phone numbers are usually provided on invoices (check your credit card, utility or mortgage bills). You can also find numbers for customer service, billing and technical support of major companies at http://www.hardtofind800numbers.com/ [see “Companies,” about a third of the way down the page, for an A-to-Z listing].

When looking specifically for customer service numbers, check out http://www.gethuman.com or http://www.get2human.com for the most thorough instructions on how to cut through those annoying, lengthy automated prompts and reach a live person.

Sid Kirchheimer is the author of Scam-Proof Your Life (AARP Books/Sterling). Send your queries about scams, deals and other consumer issues to Sid at asksid@aarp.org. If you want a personal response, please include a telephone number or e-mail address. Due to the volume of mail received, Sid regrets that he can’t answer all questions.