18.3
Structure facts
What the site currently knows about this tower, pulled from the public source stack behind the route graph.
Carrier presence
The carrier and technology hints that make this more useful than a raw tower-owner listing.
Nearby pages
Other tower detail pages within a short drive of this site.
Millbrae, CA
ASR matchedMillbrae 12.2 ASR-1240169
12.2 with 0 carrier presences. Built from FCC ASR registration data; carrier overlays come from nearby OpenCelliD cells.
HT Water Treatment Plant
Millbrae, CA
Crowdsourced onlyApproximate cell site near Millbrae, CA
Crowdsourced cell site with 1 carrier presences. Approximate OpenCelliD-only site clustered from 2 cell observations across 36 crowd samples within 1000 meters. Confidence: medium. No FCC ASR structure matched inside the 200 meter join radius.
Approximate location near Millbrae, CA 94030
Millbrae, CA
ASR matchedMillbrae 13.7 ASR-1230043
13.7 with 0 carrier presences. Built from FCC ASR registration data; carrier overlays come from nearby OpenCelliD cells.
1101 HELEN DRIVE
San Bruno, CA
ASR matchedSan Bruno 14.9 ASR-1329919
14.9 with 2 carrier presences. Joined to nearby OpenCelliD cells within 200 meters of the FCC structure. Closest matched cell was 196 meters away.
200 Crystal Springs Road (SF03069A)
Why this detail page matters
The product logic behind showing a standalone tower page instead of burying the record in a generic list.
- Exact ASR structures and crowdsourced-only nodes are both listed, with the difference labeled rather than hidden.
- Tower owner is often a neutral host like Crown Castle or American Tower, not the wireless carrier itself.
- Coverage ranges here are rough carrier-level estimates derived from reported cell radii. Treat them as indicative, not exact.