What number is used virtually nationwide by carriers for directory assistance?

The number used virtually nationwide by carriers for directory assistance is 411. This service allows callers to obtain phone numbers and addresses for businesses and individuals across the United States. When users dial 411, they are connected to an operator or an automated system that assists them in locating the desired information.

The significance of using 411 lies in its widespread recognition and utility; it serves as a universal standard for those seeking directory assistance, making it easier for the public to find information quickly. This number is specifically designed for this purpose, ensuring consistency in service across different regions and carriers.