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Long Distance


Domestic and International long distance service is available to faculty and staff for business purposes at CU Boulder through OIT.

Who can get it

Faculty and staff making university-business related calls have access at no additional cost.

How to get it

Domestic long distance and international calling no longer requires an authorization code. 

Dialing Instructions

Local in-state calls with an area code of (720) or (303):

  1. 8+Area Code+7-Digit Number 

Non-local Calls in US or Canada including (970) and (719):

  1. 8+1+Area Code+7-Digit Number

For International Calls (except Canada):

  1. Lift handset or press speaker soft key for dial tone
  2. Dial 8+011+Country Code (dial through tone)+(City Code)+Telephone Number