Banisilan comprises 20 barangays with an estimated population of 39,236. 18 of its barangays (90%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Banisilan Poblacion | 3,786 | 0 | Dead zone: no towers from any source |
| Busaon | 3,494 | 0 | Dead zone: no towers from any source |
| Capayangan | 626 | 0 | Dead zone: no towers from any source |
| Carugmanan | 1,133 | 0 | Dead zone: no towers from any source |
| Gastay | 1,818 | 0 | Dead zone: no towers from any source |
| Kalawaig | 185 | 0 | Dead zone: no towers from any source |
| Kiaring | 1,313 | 0 | Dead zone: no towers from any source |
| Malagap | 2,404 | 0 | Dead zone: no towers from any source |
| Malinao | 2,288 | 0 | Dead zone: no towers from any source |
| Miguel Macasarte | 461 | 0 | Dead zone: no towers from any source |
| Pantar | 1,303 | 2 | Crowdsourced signal only (no registered tower) |
| Paradise | 1,674 | 0 | Dead zone: no towers from any source |
| Pinamulaan | 2,117 | 0 | Dead zone: no towers from any source |
| Poblacion II | 3,078 | 0 | Dead zone: no towers from any source |
| Puting-bato | 1,389 | 0 | Dead zone: no towers from any source |
| Solama | 3,096 | 0 | Dead zone: no towers from any source |
| Thailand | 3,638 | 0 | Dead zone: no towers from any source |
| Tinimbacan | 2,689 | 1 | Crowdsourced signal only (no registered tower) |
| Tumbao-Camalig | 1,186 | 0 | Dead zone: no towers from any source |
| Wadya | 1,558 | 0 | Dead zone: no towers from any source |