21.6
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.
AT&T
Approx. 5.8 milesDerived from 1 OpenCelliD cell observations across 48 crowd samples.
T-Mobile
Approx. 0.6 milesDerived from 2 OpenCelliD cell observations across 50 crowd samples.
Verizon
Approx. 1.0 milesDerived from 1 OpenCelliD cell observations across 34 crowd samples.
Nearby pages
Other tower detail pages within a short drive of this site.
Millbrae, CA
ASR matchedMillbrae 22.9 ASR-1255114
22.9 with 1 carrier presences. Joined to nearby OpenCelliD cells within 200 meters of the FCC structure. Closest matched cell was 64 meters away.
191 Avidor Avenue
Millbrae, CA
Crowdsourced onlyApproximate cell site near Millbrae, CA
Crowdsourced cell site with 3 carrier presences. Approximate OpenCelliD-only site clustered from 25 cell observations across 617 crowd samples within 1000 meters. Confidence: high. No FCC ASR structure matched inside the 200 meter join radius.
Approximate location near Millbrae, CA 94030
Burlingame, CA
Crowdsourced onlyApproximate cell site near Burlingame, CA
Crowdsourced cell site with 3 carrier presences. Approximate OpenCelliD-only site clustered from 26 cell observations across 698 crowd samples within 1000 meters. Confidence: high. No FCC ASR structure matched inside the 200 meter join radius.
Approximate location near Burlingame, CA 94011
Millbrae, CA
ASR matchedMillbrae 14.0 ASR-1301183
14.0 with 3 carrier presences. Joined to nearby OpenCelliD cells within 200 meters of the FCC structure. Closest matched cell was 189 meters away.
100 California Drive
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.