Masiu comprises 35 barangays with an estimated population of 13,296. 35 of its barangays (100%) are connectivity dead zones with no recorded cell tower from either the national registry or crowdsourced data.
| Barangay | Population | Towers | Coverage |
|---|---|---|---|
| Abdullah Buisan | 216 | 0 | Dead zone: no towers from any source |
| Alip Lalabuan | 214 | 0 | Dead zone: no towers from any source |
| Alumpang Paino Mimbalay | 232 | 0 | Dead zone: no towers from any source |
| Buadi Amloy | 784 | 0 | Dead zone: no towers from any source |
| Caramian Alim Raya | 527 | 0 | Dead zone: no towers from any source |
| Dalog Balut | 611 | 0 | Dead zone: no towers from any source |
| Gindolongan Alabat | 65 | 0 | Dead zone: no towers from any source |
| Gondarangin Asa Adigao | 185 | 0 | Dead zone: no towers from any source |
| Kalilangan | 194 | 0 | Dead zone: no towers from any source |
| Laila Lumbac Bacon | 451 | 0 | Dead zone: no towers from any source |
| Lakadun | 1,030 | 0 | Dead zone: no towers from any source |
| Lanco Dimapatoy | 88 | 0 | Dead zone: no towers from any source |
| Lomigis Sucod | 179 | 0 | Dead zone: no towers from any source |
| Lumbaca Ingud | 150 | 0 | Dead zone: no towers from any source |
| Macabangan Imbala | 137 | 0 | Dead zone: no towers from any source |
| Macadaag Talaguian | 257 | 0 | Dead zone: no towers from any source |
| Macalupang Lumbac Caramian | 191 | 0 | Dead zone: no towers from any source |
| Macompara Apa Mimbalay | 547 | 0 | Dead zone: no towers from any source |
| Magayo Bagoaingud | 122 | 0 | Dead zone: no towers from any source |
| Mai Ditimbang Balindong | 750 | 0 | Dead zone: no towers from any source |
| Mai Sindaoloan Dansalan | 118 | 0 | Dead zone: no towers from any source |
| Manalocon Talub | 184 | 0 | Dead zone: no towers from any source |
| Maranat Bontalis | 514 | 0 | Dead zone: no towers from any source |
| Matao Araza | 94 | 0 | Dead zone: no towers from any source |
| Mocamad Tangul | 80 | 0 | Dead zone: no towers from any source |
| Moriatao-Bai Labay | 123 | 0 | Dead zone: no towers from any source |
| Pantao | 1,128 | 0 | Dead zone: no towers from any source |
| Putad Marandang Buisan | 85 | 0 | Dead zone: no towers from any source |
| Sambowang Atawa | 284 | 0 | Dead zone: no towers from any source |
| Sawir | 1,019 | 0 | Dead zone: no towers from any source |
| Talub Langi | 301 | 0 | Dead zone: no towers from any source |
| Tamboro Cormatan | 1,904 | 0 | Dead zone: no towers from any source |
| Tomambiling Lumbaca Ingud | 275 | 0 | Dead zone: no towers from any source |
| Towanao Arangga | 70 | 0 | Dead zone: no towers from any source |
| Unda Dayawan | 187 | 0 | Dead zone: no towers from any source |