Bontoc comprises 40 barangays with an estimated population of 27,668. 35 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 |
|---|---|---|---|
| Anahao | 258 | 0 | Dead zone: no towers from any source |
| Banahao | 569 | 0 | Dead zone: no towers from any source |
| Baugo | 928 | 0 | Dead zone: no towers from any source |
| Beniton | 297 | 0 | Dead zone: no towers from any source |
| Buenavista | 380 | 0 | Dead zone: no towers from any source |
| Bunga | 894 | 0 | Dead zone: no towers from any source |
| Casao | 431 | 0 | Dead zone: no towers from any source |
| Catmon | 270 | 0 | Dead zone: no towers from any source |
| Catoogan | 347 | 0 | Dead zone: no towers from any source |
| Cawayanan | 1,146 | 0 | Dead zone: no towers from any source |
| Dao | 370 | 0 | Dead zone: no towers from any source |
| Divisoria | 1,785 | 0 | Dead zone: no towers from any source |
| Esperanza | 826 | 0 | Dead zone: no towers from any source |
| Guinsangaan | 359 | 0 | Dead zone: no towers from any source |
| Hibagwan | 970 | 0 | Dead zone: no towers from any source |
| Hilaan | 2,208 | 0 | Dead zone: no towers from any source |
| Himakilo | 208 | 0 | Dead zone: no towers from any source |
| Hitawos | 285 | 0 | Dead zone: no towers from any source |
| Lanao | 396 | 0 | Dead zone: no towers from any source |
| Lawgawan | 762 | 0 | Dead zone: no towers from any source |
| Mahayahay | 207 | 1 | Crowdsourced signal only (no registered tower) |
| Malbago | 686 | 0 | Dead zone: no towers from any source |
| Mauylab | 470 | 0 | Dead zone: no towers from any source |
| Olisihan | 282 | 0 | Dead zone: no towers from any source |
| Paku | 982 | 0 | Dead zone: no towers from any source |
| Pamahawan | 1,358 | 1 | Crowdsourced signal only (no registered tower) |
| Pamigsian | 216 | 0 | Dead zone: no towers from any source |
| Pangi | 213 | 0 | Dead zone: no towers from any source |
| Poblacion | 264 | 1 | Crowdsourced signal only (no registered tower) |
| Pong-on | 492 | 0 | Dead zone: no towers from any source |
| Sampongon | 684 | 0 | Dead zone: no towers from any source |
| San Ramon | 351 | 0 | Dead zone: no towers from any source |
| San Vicente | 838 | 1 | Crowdsourced signal only (no registered tower) |
| Santa Cruz | 832 | 0 | Dead zone: no towers from any source |
| Santo Niño | 1,208 | 0 | Dead zone: no towers from any source |
| Taa | 155 | 0 | Dead zone: no towers from any source |
| Talisay | 1,422 | 0 | Dead zone: no towers from any source |
| Taytagan | 1,014 | 0 | Dead zone: no towers from any source |
| Tuburan | 187 | 0 | Dead zone: no towers from any source |
| Union | 2,118 | 1 | Crowdsourced signal only (no registered tower) |