| Organizational Unit | Local Number | Fax Number |
| Office of the Deputy Ombudsman | 302 | (082)221-3938 |
| Office of the Assistant Ombudsman | 315 | (082)221-1210 |
| Office of the Director for Evaluation and Investigation (CAA Cluster) and Complaints Unit | 311 | |
| Office of the Director for Evaluation and Investigation (MILV Cluster) and PACPO | 317 | |
| Special Prosecution Office | 327 | |
| Complaints Unit (CPL) | 322 | |
| Public Assistance Unit | 309 | |
| Graft Prevention and Control Office (GCPO) | 306 | |
| Administrative Division | 305 |