Basey comprises 51 barangays with an estimated population of 52,129. 41 of its barangays (80%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Amandayehan | 1,391 | 0 | Dead zone: no towers from any source |
| Anglit | 546 | 0 | Dead zone: no towers from any source |
| Bacubac | 946 | 0 | Dead zone: no towers from any source |
| Balante | 1,113 | 0 | Dead zone: no towers from any source |
| Baloog | 357 | 0 | Dead zone: no towers from any source |
| Basiao | 1,209 | 0 | Dead zone: no towers from any source |
| Baybay (Pob.) | 67 | 0 | Dead zone: no towers from any source |
| Binongtu-an | 389 | 0 | Dead zone: no towers from any source |
| Buenavista | 2,125 | 0 | Dead zone: no towers from any source |
| Bulao | 1,790 | 0 | Dead zone: no towers from any source |
| Burgos | 650 | 0 | Dead zone: no towers from any source |
| Buscada (Pob.) | 2,205 | 1 | Crowdsourced signal only (no registered tower) |
| Cambayan | 313 | 0 | Dead zone: no towers from any source |
| Can-abay | 1,893 | 1 | Crowdsourced signal only (no registered tower) |
| Cancaiyas | 1,248 | 0 | Dead zone: no towers from any source |
| Canmanila | 1,298 | 0 | Dead zone: no towers from any source |
| Catadman | 414 | 0 | Dead zone: no towers from any source |
| Cogon | 446 | 0 | Dead zone: no towers from any source |
| Del Pilar | 1,452 | 0 | Dead zone: no towers from any source |
| Dolongan | 483 | 2 | Crowdsourced signal only (no registered tower) |
| Guintigui-an | 442 | 0 | Dead zone: no towers from any source |
| Guirang | 2,258 | 0 | Dead zone: no towers from any source |
| Iba | 431 | 1 | Crowdsourced signal only (no registered tower) |
| Inuntan | 1,138 | 0 | Dead zone: no towers from any source |
| Lawa-an (Pob.) | 1,103 | 0 | Dead zone: no towers from any source |
| Loog | 1,587 | 0 | Dead zone: no towers from any source |
| Loyo (Pob.) | 495 | 0 | Dead zone: no towers from any source |
| Mabini | 2,459 | 0 | Dead zone: no towers from any source |
| Magallanes | 732 | 0 | Dead zone: no towers from any source |
| Manlilinab | 602 | 0 | Dead zone: no towers from any source |
| May-it | 1,070 | 1 | Crowdsourced signal only (no registered tower) |
| Mercado (Pob.) | 116 | 0 | Dead zone: no towers from any source |
| Mongabong | 971 | 2 | Crowdsourced signal only (no registered tower) |
| New San Agustin | 547 | 0 | Dead zone: no towers from any source |
| Nouvelas Occidental | 1,375 | 4 | Crowdsourced signal only (no registered tower) |
| Old San Agustin | 1,529 | 0 | Dead zone: no towers from any source |
| Palaypay (Pob.) | 3,226 | 0 | Dead zone: no towers from any source |
| Panugmonon | 843 | 0 | Dead zone: no towers from any source |
| Pelit | 575 | 0 | Dead zone: no towers from any source |
| Roxas | 613 | 0 | Dead zone: no towers from any source |
| Salvacion | 678 | 0 | Dead zone: no towers from any source |
| San Antonio | 1,766 | 0 | Dead zone: no towers from any source |
| San Fernando (Nouvelas Oriental) | 1,302 | 0 | Dead zone: no towers from any source |
| Sawa | 129 | 0 | Dead zone: no towers from any source |
| Serum | 1,221 | 0 | Dead zone: no towers from any source |
| Sugca | 364 | 0 | Dead zone: no towers from any source |
| Sugponon | 213 | 0 | Dead zone: no towers from any source |
| Sulod (Pob.) | 39 | 1 | Crowdsourced signal only (no registered tower) |
| Tinaogan | 934 | 2 | Crowdsourced signal only (no registered tower) |
| Tingib | 1,540 | 1 | Crowdsourced signal only (no registered tower) |
| Villa Aurora | 1,496 | 0 | Dead zone: no towers from any source |