Lacub comprises 6 barangays with an estimated population of 2,885. 6 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 |
|---|---|---|---|
| Bacag | 125 | 0 | Dead zone: no towers from any source |
| Buneg | 979 | 0 | Dead zone: no towers from any source |
| Guinguinabang | 403 | 0 | Dead zone: no towers from any source |
| Lan-ag | 512 | 0 | Dead zone: no towers from any source |
| Pacoc | 373 | 0 | Dead zone: no towers from any source |
| Poblacion (Talampac) | 493 | 0 | Dead zone: no towers from any source |