Phone Guides
How to Read a U.S. Phone Number: Area Code, Prefix and Line Number
Every U.S. phone number follows the same three-part pattern, and this guide explains the area code, prefix and line number so you can read…
Category: Phone Guides
Phone Guides
Special Three-Digit Numbers: 911, 411, 211, 311 and 988
A friendly guide to the short three digit phone numbers used across the United States, explaining what 911, 411, 211, 311, 988 and others…
Phone Guides
Area Codes in Canada and the Caribbean Under +1
The +1 numbering plan covers more than the United States, including Canada and many Caribbean countries, and this guide explains the codes, calling rules…
Phone Guides
Why Do Area Codes Run Out of Numbers?
Area codes run out because demand for phone numbers keeps growing, and this guide explains how numbers are used up and what planners do…
Phone Guides
Area Code vs. ZIP Code: What’s the Difference?
An area code routes telephone calls while a ZIP code routes mail, and this guide explains how each works, why they differ, and when…