Claver comprises 14 barangays with an estimated population of 52,034. 6 of its barangays (43%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Bagakay (Pob. West) | 2,066 | 1 | Crowdsourced signal only (no registered tower) |
| Cabugo | 496 | 0 | Dead zone: no towers from any source |
| Cagdianao | 7,695 | 5 | Crowdsourced signal only (no registered tower) |
| Daywan | 2,413 | 1 | Crowdsourced signal only (no registered tower) |
| Hayanggabon | 5,364 | 1 | Crowdsourced signal only (no registered tower) |
| Ladgaron (Pob.) | 9,513 | 2 | Crowdsourced signal only (no registered tower) |
| Lapinigan | 892 | 0 | Dead zone: no towers from any source |
| Magallanes | 3,825 | 0 | Dead zone: no towers from any source |
| Panatao | 2,817 | 5 | Crowdsourced signal only (no registered tower) |
| Sapa | 794 | 0 | Dead zone: no towers from any source |
| Taganito | 6,466 | 14 | Crowdsourced signal only (no registered tower) |
| Tayaga (Pob. East) | 6,312 | 4 | Crowdsourced signal only (no registered tower) |
| Urbiztondo | 2,951 | 0 | Dead zone: no towers from any source |
| Wangke | 430 | 0 | Dead zone: no towers from any source |