Tandubas comprises 20 barangays with an estimated population of 10,716. 20 of its barangays (100%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Baliungan | 308 | 0 | Dead zone: no towers from any source |
| Ballak | 898 | 0 | Dead zone: no towers from any source |
| Butun | 980 | 0 | Dead zone: no towers from any source |
| Himbah | 787 | 0 | Dead zone: no towers from any source |
| Kakoong | 1,600 | 0 | Dead zone: no towers from any source |
| Kalang-kalang | 144 | 0 | Dead zone: no towers from any source |
| Kepeng | 438 | 0 | Dead zone: no towers from any source |
| Lahay-lahay | 290 | 0 | Dead zone: no towers from any source |
| Naungan | 451 | 0 | Dead zone: no towers from any source |
| Salamat | 194 | 0 | Dead zone: no towers from any source |
| Sallangan | 243 | 0 | Dead zone: no towers from any source |
| Sapa | 299 | 0 | Dead zone: no towers from any source |
| Sibakloon | 189 | 0 | Dead zone: no towers from any source |
| Silantup | 1,504 | 0 | Dead zone: no towers from any source |
| Tandubato | 177 | 0 | Dead zone: no towers from any source |
| Tangngah (Tangngah Ungus Matata) | 797 | 0 | Dead zone: no towers from any source |
| Tapian | 688 | 0 | Dead zone: no towers from any source |
| Tapian Sukah | 275 | 0 | Dead zone: no towers from any source |
| Taruk | 169 | 0 | Dead zone: no towers from any source |
| Tongbangkaw | 285 | 0 | Dead zone: no towers from any source |