Carranglan comprises 17 barangays with an estimated population of 52,115. 10 of its barangays (59%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Bantug | 850 | 0 | Dead zone: no towers from any source |
| Bunga | 5,172 | 0 | Dead zone: no towers from any source |
| Burgos | 5,420 | 2 | Crowdsourced signal only (no registered tower) |
| Capintalan | 2,880 | 5 | Crowdsourced signal only (no registered tower) |
| D. L. Maglanoc Pob. (Bgy.III) | 517 | 0 | Dead zone: no towers from any source |
| F. C. Otic Pob. (Bgy. II) | 599 | 0 | Dead zone: no towers from any source |
| G. S. Rosario Pob. (Bgy. IV) | 879 | 0 | Dead zone: no towers from any source |
| General Luna | 4,210 | 0 | Dead zone: no towers from any source |
| Joson (Digidig) | 3,718 | 13 | Crowdsourced signal only (no registered tower) |
| Minuli | 1,757 | 0 | Dead zone: no towers from any source |
| Piut | 3,220 | 14 | Crowdsourced signal only (no registered tower) |
| Puncan | 6,547 | 30 | Crowdsourced signal only (no registered tower) |
| Putlan | 2,267 | 2 | Crowdsourced signal only (no registered tower) |
| R.A.Padilla (Baluarte) | 8,747 | 8 | Crowdsourced signal only (no registered tower) |
| Salazar | 845 | 0 | Dead zone: no towers from any source |
| San Agustin | 3,866 | 0 | Dead zone: no towers from any source |
| T. L. Padilla Pob. (Bgy. I) | 621 | 0 | Dead zone: no towers from any source |