Growth Trends for Related Jobs

How to Write a Phone Number With an Extension on a Resume

careertrend article image

Your resume is the first impression that potential employers will have to determine if you're the right for their company. You will want your resume to have perfect grammar and punctuation, including the proper formatting of phone numbers and extensions. Listing phone numbers can vary from country to country. Be sure to make your contact information easy to find, preferably listing it in bold toward the top of your resume.

Adding a Phone Number

Write the phone number with your contact information. You should include the area code as well as the phone number. It should look like (555) 555-5555 or 555-555-5555, depending on your preference.

Adding an Extension

Write out "extension" with the extension number beside it or simply write "ext." with the extension number beside it on the same line as the phone number you are listing. It should look like either (555) 555-5555 extension 5 or (555) 555-5555 ext. 5.


Andi Collins has been writing various travel and health articles since 2007. She holds a Bachelor of Arts in psychology and is currently pursuing a Bachelor of Arts in Homeland Security. She has an extensive medical background, working as a nurse in family practice, labor and delivery and pediatric cardiology.

Photo Credits