Yes | No Thanks | Maybe Later
Dialing Instructions
Outside callers may reach you directly by dialing your complete telephone number. For the University Park Campus (UPC), complete telphone numbers include the following forms: (213) 740-XXXX, (213) 743-XXXX, (213) 764-XXXX. For the Health Sciences campus (HSC), telephone numbers take the form: (323) 442-XXXX. Always include the proper area code (213 or 323) when giving off-campus callers your telephone number.
Intra- and Inter-Campus Calls
We encourage you to dial a five-digit extension number for the following campus locations:
| Campus Location | Area Code | Prefix | Extension | |
| University Park Campus 5ESS | 213 | 740 | 0-XXXX | |
| University Park Campus 5ESS | 213 | 821 | 1-XXXX | |
| University Park Campus Centrex | 213 | 743 | 3-XXXX | |
| Health Science Campus 5ESS | 323 | 442 | 2-XXXX | |
| Health Science Campus Centrex | 323 | 224 | 4-XXXX | |
| Norris Hospital | 323 | 865 | 5-XXXX | |
| University Hospital | 323 | 442 | 2-XXXX | |
| Doheny Hospital | 323 | 442 | 2-XXXX | |
| Alhambra G3 | 626 | 457 | 7-XXXX | |
| Catalina Island | 310 | 510 | 6-XXXX | |
Note: County Hospital requires dialing the seven (7) digit telephone number.
| Local Calls (Centrex and 5ESS) | ||
| 411 Information | Dial 9 + 411 | |
| 800 Information | Dial 9 + 1 + 800 + 555-1212 | |
| 213 Area Code (UPC) | Dial 9 + XXX-XXXX | |
| 323 Area Code (HSC) | Dial 9 + 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 |
Long-Distance Calls (Centrex and 5ESS)
A Call 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 | ||||
| Exceptions: | Rotary Centrex Dial 120 Instead of 9 | ||||
| International Calls (Centrex and 5ESS) | |
| Direct Dialing | Dial 9 + 011 + XX + X + XXX-XXXX + CID |
| Operator Calls (Centrex and 5ESS) | ||
| Outside Operator | Dial 9 + 0 | |
| Campus Operator | Dial 0 | |
| Campus Information | (213) 740-2311 |
Last updated: Monday, August 03, 2009, 14:17PM PDT