Sominot (Don Mariano Marcos) comprises 18 barangays with an estimated population of 19,113. 17 of its barangays (94%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Bag-ong Baroy | 901 | 0 | Dead zone: no towers from any source |
| Bag-ong Oroquieta | 544 | 0 | Dead zone: no towers from any source |
| Barubuhan | 520 | 0 | Dead zone: no towers from any source |
| Bulanay | 869 | 0 | Dead zone: no towers from any source |
| Datagan | 229 | 0 | Dead zone: no towers from any source |
| Eastern Poblacion | 1,445 | 1 | Crowdsourced signal only (no registered tower) |
| Lantawan | 572 | 0 | Dead zone: no towers from any source |
| Libertad | 368 | 0 | Dead zone: no towers from any source |
| Lumangoy | 571 | 0 | Dead zone: no towers from any source |
| New Carmen | 1,497 | 0 | Dead zone: no towers from any source |
| Picturan | 977 | 0 | Dead zone: no towers from any source |
| Poblacion | 2,130 | 0 | Dead zone: no towers from any source |
| Rizal | 1,542 | 0 | Dead zone: no towers from any source |
| San Miguel | 622 | 0 | Dead zone: no towers from any source |
| Santo Niño | 1,585 | 0 | Dead zone: no towers from any source |
| Sawa | 330 | 0 | Dead zone: no towers from any source |
| Tungawan | 2,520 | 0 | Dead zone: no towers from any source |
| Upper Sicpao | 1,891 | 0 | Dead zone: no towers from any source |