Ace Signal AtlasThe Philippine connectivity encyclopedia of 42,048 barangays
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Zambales

Province · Internet connectivity overview

Zambales has 247 barangays across 14 municipalities. 98 barangays (40%) are connectivity dead zones.

Municipalities

MunicipalityBarangaysDead zones
Botolan3118 (58%)
Cabangan2214 (64%)
Candelaria168 (50%)
Castillejos144 (29%)
Iba (Capital)144 (29%)
Masinloc130 (0%)
Olongapo City170 (0%)
Palauig199 (47%)
San Antonio143 (21%)
San Felipe115 (45%)
San Marcelino1810 (56%)
San Narciso177 (41%)
Santa Cruz2514 (56%)
Subic162 (12%)
Last updated 3 July 2026 · Home · Terms & data policy · Facts reported neutrally; deployment analysis is available on request.