Ranked by distance from the ZIP centroid
Sites on this route
Ranked tower detail pages for this browse surface, using the same utility-first layout across ZIP, state, county, carrier, and 5G pages.
San Mateo, CA
ASR matchedSan Mateo 42.4 ASR-1273976
42.4 with 2 carrier presences. Joined to nearby OpenCelliD cells within 200 meters of the FCC structure. Closest matched cell was 160 meters away.
1840 Gateway Drive (San Francisco)(SF53949A)
AT&T
T-Mobile
5G NR
LTE
San Mateo, CA
Crowdsourced onlyApproximate cell site near San Mateo, CA
Crowdsourced cell site with 3 carrier presences. Approximate OpenCelliD-only site clustered from 40 cell observations across 734 crowd samples within 1000 meters. Confidence: high. No FCC ASR structure matched inside the 200 meter join radius.
Approximate location near San Mateo, CA 94404
AT&T
T-Mobile
Verizon
5G NR
GSM
LTE
San Mateo, CA
ASR matchedSan Mateo 46.3 ASR-1215230
46.3 with 2 carrier presences. Joined to nearby OpenCelliD cells within 200 meters of the FCC structure. Closest matched cell was 35 meters away.
1400 Fashion Island Boulevard
AT&T
T-Mobile
5G NR
LTE
San Mateo, CA
Crowdsourced onlyApproximate cell site near San Mateo, CA
Crowdsourced cell site with 3 carrier presences. Approximate OpenCelliD-only site clustered from 19 cell observations across 488 crowd samples within 1000 meters. Confidence: high. No FCC ASR structure matched inside the 200 meter join radius.
Approximate location near San Mateo, CA 94404
AT&T
T-Mobile
Verizon
5G NR
LTE
San Mateo, CA
ASR matchedSan Mateo 24.4 ASR-1274298
24.4 with 0 carrier presences. Built from FCC ASR registration data; carrier overlays come from nearby OpenCelliD cells.
Transmission Tower 44/173, 1900 South Norfolk Street
Redwood City, CA
ASR matchedRedwood City 34.1 ASR-1272142
34.1 with 0 carrier presences. Built from FCC ASR registration data; carrier overlays come from nearby OpenCelliD cells.
519 St. Vincent Lane (SF13055G)
San Mateo, CA
Crowdsourced onlyApproximate cell site near San Mateo, CA
Crowdsourced cell site with 3 carrier presences. Approximate OpenCelliD-only site clustered from 45 cell observations across 1160 crowd samples within 1000 meters. Confidence: high. No FCC ASR structure matched inside the 200 meter join radius.
Approximate location near San Mateo, CA 94403
AT&T
T-Mobile
Verizon
5G NR
GSM
LTE
San Mateo, CA
ASR matchedSan Mateo 25.3 ASR-1325270
25.3 with 0 carrier presences. Built from FCC ASR registration data; carrier overlays come from nearby OpenCelliD cells.
2401 E 3RD AVE - 16226476
Carrier presence near this ZIP
Counts below show how many nearby sites report each carrier, based on FCC ASR structures joined with crowdsourced OpenCelliD cells.
Related routes
Keep drilling down into the adjacent browse pages that give this route more context.
County page
San Mateo, CA
472 towers, 3 carriers, 175 approximate sites.
162 5G-capable sitesState page
California
58 counties, 10 carriers, 19274 tower pages.
4303 5G-capable sites5G city page
5G towers in San Mateo, CA
33 5G-capable sites across 3 carriers.
30 crowdsourced-only nodesCarrier + state
Verizon in California
4702 tower sites with Verizon presence.
2529 5G-capable sitesWhat this page is for
Each route should justify itself as a useful lookup page, not just another filter state.
Weak signal?
Tower distance is the first thing to check
People looking up towers near a home or office are often diagnosing weak signal. Distance to the nearest site explains most of it; terrain and building materials do the rest.
Distance drives signal strengthPrecision note
Not every nearby site has an FCC structure match
Small cells and shorter poles frequently never show up in ASR. They are listed here too, labeled as crowdsourced or approximate.
4 approximate nodes in this listSearch tip
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