Anao comprises 18 barangays with an estimated population of 10,991. 5 of its barangays (28%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Baguindoc (Baguinloc) | 772 | 3 | Crowdsourced signal only (no registered tower) |
| Bantog | 860 | 0 | Dead zone: no towers from any source |
| Campos | 168 | 3 | Crowdsourced signal only (no registered tower) |
| Carmen | 612 | 0 | Dead zone: no towers from any source |
| Casili | 1,950 | 2 | Crowdsourced signal only (no registered tower) |
| Don Ramon | 117 | 0 | Dead zone: no towers from any source |
| Hernando | 105 | 4 | Crowdsourced signal only (no registered tower) |
| Poblacion | 62 | 0 | Dead zone: no towers from any source |
| Rizal | 1,014 | 13 | Crowdsourced signal only (no registered tower) |
| San Francisco East | 855 | 27 | Crowdsourced signal only (no registered tower) |
| San Francisco West | 1,078 | 2 | Crowdsourced signal only (no registered tower) |
| San Jose North | 58 | 5 | Crowdsourced signal only (no registered tower) |
| San Jose South | 458 | 6 | Crowdsourced signal only (no registered tower) |
| San Juan | 368 | 6 | Crowdsourced signal only (no registered tower) |
| San Roque | 332 | 8 | Crowdsourced signal only (no registered tower) |
| Santo Domingo | 271 | 0 | Dead zone: no towers from any source |
| Sinense | 766 | 3 | Crowdsourced signal only (no registered tower) |
| Suaverdez | 1,145 | 1 | Crowdsourced signal only (no registered tower) |