| Institutional Offices | Extension | |
| President’s Office | ||
| Assistant to the President | 2001 | |
| PAOP | 2002 | |
| Staff | 2150 | |
| VP for Basic Education | 3110/1050 | |
| VP for Higher Education | 2052 | |
| Office | 2052 | |
| Staff 1 | 2098 | |
| Staff 2 | 2099 | |
| Alingal Convention Hall Custodian | 2017 | |
| Alumni International Relations Office | 2173 | |
| Ateneo IELTS Review Center | 2181 | |
| Ateneo Innovation | 2137 | |
| Ateneo Social Science Research Center | 2056 | |
| Ateneo Teacher Training Center | 2086 | |
| Athletics Director | 2040 | |
| Career & Placement Office | 2087 | |
| Center for Community Development | 2061 | |
| Center for Culture & Arts | 2049 | |
| Center for Local Governance | 2066 | |
| Chaplaincy Office | 2010 | |
| Church Main Campus | 2009 | |
| College Admission & Aid Office | 2102 | |
| College Campus Ministry | 2182 | |
| College Guidance Center | ||
| Deputy Guidance | 2057 | |
| Guidance Office | 2103 | |
| College Registrar’s Office | ||
| CRO Staff 1 | 2058 | |
| CRO Staff 2 | 2092 | |
| Information | 2185 | |
| Records | 2058 | |
| Computing Systems and Innovations Office | 2090 | |
| Garage – Main Campus | 2191 | |
| Human Resource and Management Office | ||
| Attend Monitoring | 2085 | |
| Benefits and Wellness | 2065 | |
| Capability Bldg Officer | 2081 | |
| Compensation & Benefits Officer | 2064 | |
| Office | 2051 | |
| Pacol Office | 3121 | |
| Records Management | 2084 | |
| Research & Evaluation Specialist | 2083 | |
| Training and Development | 2082 | |
| Infirmary | 2214 | |
| Information and Communication Technology Center | 2054 | |
| Institute for Environmental Conservation & Research | 2175 | |
| Instructional Media Center | 2170 | |
| Institutional Testing Center | 2048 | |
| IELTS | 2181 | |
| Jesuit Residence | 5700 | |
| LDSP Officer | 2006 | |
| Madrigal | ||
| Coco Cafe | 2757 | |
| Office | 2751 | |
| Management Information System Office | 2072 | |
| Office of Administrative Services | 2077 | |
| Network Operations and Computer Services | ||
| Main Office | 2004 | |
| Desktop Team | 2050 | |
| NOCS Pacol | 2200 | |
| O’Brien Library | ||
| Main Campus Office | 2089 | |
| 1st Floor Counter | 2156 | |
| 2nd Floor Counter | 2157 | |
| 3rd Floor Counter | 2158 | |
| Archives | 2160 | |
| Knowledge Development Center | 2163 | |
| Multimedia Services | 2161 | |
| Security Desk | 2155 | |
| Technical Support | 2164 | |
| Electronic Research Center | 2162 | |
| Office of Communications and External Relations | 2183 | |
| Office of Mission and Identity | 2059 | |
| Office of Student Affairs | 2060 | |
| Physical Plant Administrator | 2911 | |
| Project Management Office (Construction) | 2766 | |
| Psychological Services Center | 2120 | |
| Purchasing and Asset Management Office | ||
| Main Office | 2080 | |
| Storage Facility Staff | 2008 | |
| Staff 2 | 2187 | |
| Security | ||
| Queborac Gate | 2833 | |
| Main Campus Gate | 2844 | |
| Sta Cruz Gate | 2855 | |
| Pacol Main Gate | 3811 | |
| Guard Station – Pacol GS | 3822 | |
| Truimph | 2139 | |
| Treasurer’s Office | ||
| Accountant | 2003 | |
| Budget Officer | 2078 | |
| Cashiers | 2076 | |
| Disbursement Officer | 2074 | |
| Finance | 2075 | |
| Payroll Officer | 2073 | |
| University Chaplain | 2009 | |
| University Press | 1031 | |
| University Research Council | 2101 | |
| University Student Recruitment Office | 2007 | |
| University Social Involvement Center | 2100 | |
| Supreme Student Government (College) | 2062 |