ZIP route

Cell towers near 94401

Nearest tower sites to San Mateo in CA, San Mateo. Distances are measured from the ZIP centroid.

12 Nearby sites

Ranked by distance from the ZIP centroid

3 Carriers

Distinct tenant brands seen nearby

7 5G-capable sites

At least one carrier reports NR

7 Approximate-only nodes

Crowdsourced equipment with no ASR match

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

Crowdsourced only

Approximate cell site near San Mateo, CA

Crowdsourced cell site with 3 carrier presences. Approximate OpenCelliD-only site clustered from 26 cell observations across 425 crowd samples within 1000 meters. Confidence: high. No FCC ASR structure matched inside the 200 meter join radius.

Approximate location near San Mateo, CA 94401

Unknown height Crowdsourced cell site Unknown / crowdsource-derived 0.5 miles
AT&T T-Mobile Verizon
5G NR LTE

San Mateo, CA

Crowdsourced only

Approximate cell site near San Mateo, CA

Crowdsourced cell site with 3 carrier presences. Approximate OpenCelliD-only site clustered from 22 cell observations across 663 crowd samples within 1000 meters. Confidence: high. No FCC ASR structure matched inside the 200 meter join radius.

Approximate location near San Mateo, CA 94401

Unknown height Crowdsourced cell site Unknown / crowdsource-derived 0.5 miles
AT&T T-Mobile Verizon
5G NR LTE

San Mateo, CA

ASR matched

San Mateo 33.2 ASR-1282090

33.2 with 0 carrier presences. Built from FCC ASR registration data; carrier overlays come from nearby OpenCelliD cells.

1210 Poplar Ave

31 ft 33.2 MICKIE 0.6 miles

San Mateo, CA

ASR matched

San Mateo 25.9 ASR-1215231

25.9 with 0 carrier presences. Built from FCC ASR registration data; carrier overlays come from nearby OpenCelliD cells.

1600 East Poplar Avenue

26 ft 25.9 David 0.7 miles

San Mateo, CA

ASR matched

San Mateo 31.3 ASR-1015554

31.3 with 0 carrier presences. Built from FCC ASR registration data; carrier overlays come from nearby OpenCelliD cells.

1600 E POPLAR AVE

28 ft 31.3 Registered owner 0.7 miles

San Mateo, CA

Crowdsourced only

Approximate cell site near San Mateo, CA

Crowdsourced cell site with 3 carrier presences. Approximate OpenCelliD-only site clustered from 22 cell observations across 692 crowd samples within 1000 meters. Confidence: high. No FCC ASR structure matched inside the 200 meter join radius.

Approximate location near San Mateo, CA 94401

Unknown height Crowdsourced cell site Unknown / crowdsource-derived 0.7 miles
AT&T T-Mobile Verizon
5G NR LTE

San Mateo, CA

Crowdsourced only

Approximate cell site near San Mateo, CA

Crowdsourced cell site with 3 carrier presences. Approximate OpenCelliD-only site clustered from 7 cell observations across 170 crowd samples within 1000 meters. Confidence: high. No FCC ASR structure matched inside the 200 meter join radius.

Approximate location near San Mateo, CA 94401

Unknown height Crowdsourced cell site Unknown / crowdsource-derived 0.8 miles
AT&T T-Mobile Verizon
5G NR LTE

San Mateo, CA

ASR matched

San Mateo 57.0 ASR-1204060

57.0 with 0 carrier presences. Built from FCC ASR registration data; carrier overlays come from nearby OpenCelliD cells.

400 S El Camino Real

55 ft 57.0 Robert 0.8 miles

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.

T-Mobile 7 sites
Verizon 6 sites
AT&T 5 sites

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 sites

State page

California

58 counties, 10 carriers, 19274 tower pages.

4303 5G-capable sites

What 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 strength

Precision 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.

7 approximate nodes in this list

Search tip

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Searching a ZIP code centers results on its centroid. City, county, and carrier pages widen the same view when you want more context.

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