This page provides information about how you can place outgoing calls from your USC telephone and how non-USC callers can reach you on your USC telephone. The page also explains how to place a long-distance call from your USC telephone.
Placing Calls to USC Phones
We encourage you to dial a five-digit extension number for the following campus area codes and prefixes:
Note: County Hospital requires dialing the seven-digit telephone number.
Placing Calls to Non-USC Phones
|411 Information||Dial 9 + 411|
|800 Information||Dial 9 + 1 + 800 + 555-1212|
|213 Area Code (UPC)||Dial 9 + 1 + 213 + XXX-XXXX|
|323 Area Code (HSC)||Dial 9 + 1 + 323 + XXX-XXXX|
|800, 877, 888 Area Codes||Dial 9 + 1 + Area Code + XXX-XXXX|
|Any Area Code Other Than 213 (UPC)||Dial 9 + 1 + Area Code + XXX-XXXX|
|Any Area Code Other Than 323 (HSC)||Dial 9 + 1 + Area Code + XXX-XXXX|
NOTE: As of July 8, 2017, you need to dial “9” plus “1” plus the full 10-digit phone number (9 + 1 + area code + 7-digit phone number) when calling an off-campus 213 or 323 phone number from your campus phone.
- Outside Operator Dial 9 + 0
- Campus Operator Dial 0
- Campus Information 213-740-2311
Receiving Calls from Non-USC Phones
Non-USC callers can reach you by dialing your complete telephone number.
On the University Park campus (UPC), complete telphone numbers take the following forms: 213-740-XXXX, 213-743-XXXX, and 213-764-XXXX.
On the Health Sciences campus (HSC), telephone numbers are in the following format: 323-442-XXXX.
Be sure to include the proper area code (213 or 323) when giving off-campus callers your telephone number.
Placing Long-Distance Calls
A Long Distance Caller Identification Number (CID) must typically be used for long distance calls.
|Information||Dial 9 + 1 + Area Code + 555-1212 + CID|
|Direct Dialing||Dial 9 + 1 + Area Code + XXX-XXXX + CID|
|Direct Dialing||Dial 9 + 011 + XX + X + XXX-XXXX + CID|
For additional assistance with dialing to or from your telephone, please submit a request via a Communication Service Request (CSR) (USC Login Required).