| Administrative Services | 517-244-1229 |
| Attendance Officer | 517-244-1203 |
| Attendance/CACC | 517-244-1306 |
| Auto Tech Parts | 517-244-1331 |
| Bright Futures | 517-882-5025 |
| Business Office | 517-244-1235 |
| CACC Conf Rm 205A | 517-244-2763 |
| CACC Conf Rm 602 | 517-244-1332 |
| CACC Conf Rm 605 | 517-244-1396 |
| CACC Conf Rm 606 | 517-244-1395 |
| CACC Lounge | 517-244-2717 |
| CACC Main Office | 517-244-1330 |
| Capital Area Michigan Works | 517-492-5500 |
| Career Preparation & Assessment | 517-244-1329 |
| Career Services & Technical Education | 517-244-4536 |
| Case Credit Union | 517-676-3953 |
| Central Fax for TEC | 517-244-2703 |
| Central Records | 517-244-1283 |
| CloseUp | 517-244-1281 |
| Collision Repair Technology | 517-244-1343 |
| Computer-Aided Drafting (CAD) & Design | 517-244-1373 |
| Cooperative Acquisitions | 517-244-1473 |
| Cosmetology | 517-244-1361 |
| Curriculum & School Improvement | 517-244-1254 |
| Custodial Services | 517-244-1204 |
| Dimensions | 517-244-1242 |
| Early Childhood Services/Referrals | 517-244-4514 |
| Early On/Early Childhood Spec.Ed.Srvc. | 517-244-4514 |
| Emergency 911 | 517-244-9911 |
| Evergreen Program | 517-244-1350 |
| GED | 517-244-1307 |
| Galileo Early Childhood Center | 517-203-2784 |
| Gifted and Talented | 517-244-1242 x1209 |
| Grant Services | 517-244-1294 |
| Great Parents, Great Start | |
| Heartwood Main Office | 517-244-1405 |
| Heartwood Pool | 517-244-1453 |
| Heartwood Room 120 | 244-1440 |
| Heartwood Seminar Room | 517-244-1428 |
| Hill Center for Academic & Technology | 517-325-6420 |
| Holt Education Center | 517-708-3529 |
| Human Resources | 517-244-1268 |
| Info System Emergency | 517-244-1499 x1660 |
| Information Systems | 517-244-1215 |
| Ingham Diagnostics | 517-244-1250 |
| Kids College | 517-244-1242 |
| Kitchen - Heartwood | 517-244-1421 |
| LIFT 3-6/SR | 517-244-1211 |
| LIFT K-3 | 517-244-1251 |
| Lamp | 517-377-7149 |
| Lansing Gardner Early On | 517-755-4100 |
| Lobby TEC | 517-244-1170 |
| Lounge - TEC | 517-244-1241 |
| MASCOT | 517-244-1242 |
| MLPP | 517-244-1251 |
| Mail Room Attendant | 517-244-1474 |
| Maintenance Services | 517-244-1345 |
| Malcolm Williams | 517-244-1488 |
| Media Services | 517-244-1467 |
| Medicaid | 517-244-1205 |
| New Media | 517-244-1323 |
| Nurse - Heartwood | 517-244-1420 |
| PAL Program | 517-492-5558 |
| Palm Support | 517-244-1205 |
| Payroll | 517-244-1226 |
| Placement Services | 517-244-1380 |
| Planning & Evaluation | 517-244-1285 |
| Project Find | 517-244-4514 |
| Public Information | 517-244-1212 |
| Pupil Accounting | 517-244-1207 |
| Purchasing | 517-244-1229 |
| REMC 13/Media Services | 517-244-1473 |
| Reading Recovery | 517-244-1211 |
| Regional Literacy Training Center | 517-244-1251 |
| SB-CEU | 517-708-3525 |
| SE Finance/Medicaid | 517-244-1288 |
| Saturday School | 517-244-1242 |
| School Development Services | 517-244-1213 |
| Secondary Learning Center | 517-244-1350 |
| Special Education | 517-244-1425 |
| St. Vincent's Home | 517-244-1350 |
| Sunshine Cafe | 517-244-1340 |
| Superintendent | 517-244-1230 |
| Superintendent's Office | 517-244-1214 |
| TDD Deaf (1298) | 517-676-2478 |
| TEC Conf Rm 101 | 517-244-1719 |
| TEC Conf Rm 202 | 517-244-1275 |
| TEC Conf Rm 308 | 517-244-1720 |
| TEC Conf Rm 312 | 517-244-1721 |
| TEC Conf Rm 411 | 517-244-1718 |
| TEC Conference Room A | 517-244-1277 |
| TEC Conference Room B | 517-244-1253 |
| TEC Conference Room C | 517-244-1264 |
| Teacher Workshop | 517-244-1474 |
| Voc Eval | 517-244-1329 |
| Williamston Middle School | 517-677-4668 |
| Work First Lansing | 517-492-5524 |