Sometimes, you have to make a phone call when you are out in public. If you do not own a cell phone,you will have no choice but to have to call from a public pay phone. Some of these phones do not have a number listed on them, and some do, but occasionally, the number will be scratched out from deterioration or even vandals. If you have to make a call and need someone to call you back immediately, you will need to know the phone number. Locating the number is easier than you might think.
Call the ANAC, or Automatic Number Announcement Circuit. This is a special phone number used by telephone company technicians to determine phone numbers. There are several numbers you can call, depending on your area, including (800) 444-0800, (800) 444-2222, (800) 444-3333, (800) 444-4444 and (800) 444-5555.
Write down the number the automated help desk gives you. This will help you to give the phone number to the person you want to call you back.
Hang up the phone. Pick the receiver back up and dial the number you just received from the automated message. Wait to hear a busy signal. This is just to ensure that you were indeed given the correct number.