The railroad offers these instructions for the machines: On the left side are station names with a three-digit codes.

A Paris exchange, followed by the three-digit code 454.

The old numbers were directly proportional with the engine power, so that two- and three-digit codes existed.

The game continually tries to trick the player into revealing the secret three-digit code.

You next dial 1 and 0 followed by a three-digit code to reach the carrier.

If they do, callers punch in a three-digit code, which connects them to the restaurant.

You will be given a three-digit code for each branch or company in your business.

A sectional center facility may have more than one three-digit code assigned to it.

In general, New Process transfer cases are identified by a three-digit code.

A three-digit code was used for tires manufactured before 2000.