Ambaguio comprises 8 barangays with an estimated population of 21,788. 7 of its barangays (88%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Ammoweg | 2,455 | 0 | Dead zone: no towers from any source |
| Camandag | 2,862 | 0 | Dead zone: no towers from any source |
| Dulli | 2,112 | 0 | Dead zone: no towers from any source |
| Labang | 3,078 | 2 | Crowdsourced signal only (no registered tower) |
| Napo | 1,085 | 0 | Dead zone: no towers from any source |
| Poblacion | 3,133 | 0 | Dead zone: no towers from any source |
| Salingsingan | 2,001 | 0 | Dead zone: no towers from any source |
| Tiblac | 5,062 | 0 | Dead zone: no towers from any source |