# AT&T Coverage in Portola Valley, CA 94028

Mixed — AT&T coverage in Portola Valley, CA 94028 is usable but uneven.

## Summary

- **Carrier**: AT&T (on the AT&T network)
- **Location**: Portola Valley, CA 94028
- **Verdict**: FAIR (fair)
- **Towers on network**: 22
- **Best signal (dBm)**: -52.6
- **Nearest tower**: 2.36 mi
- **Low-band sites**: 3
- **Mid-band sites**: 19
- **High-band sites**: 0

## Coordinates

- **Latitude**: 37.37492
- **Longitude**: -122.21136

## Competitor Networks at This Location

- **Verizon** (Verizon): 79 towers, verdict STRONG (strong), best -29.8 dBm
- **T-Mobile** (T-Mobile): 110 towers, verdict GOOD (good), best -50.4 dBm

## AT&T Coverage in Nearby Cities

- [San Francisco, CA](/coverage/att/near/city-state/san-francisco/ca) — 524 towers
- [San Lorenzo, CA](/coverage/att/near/city-state/san-lorenzo/ca) — 274 towers
- [Emeryville, CA](/coverage/att/near/city-state/emeryville/ca) — 247 towers
- [Berkeley, CA](/coverage/att/near/city-state/berkeley/ca) — 242 towers
- [San Anselmo, CA](/coverage/att/near/city-state/san-anselmo/ca) — 234 towers
- [Brisbane, CA](/coverage/att/near/city-state/brisbane/ca) — 231 towers

## Related Links

- **View on Map**: https://www.celltowermaps.com/coverage/att/near/zip-code/94028
- **All carriers at this zip**: https://www.celltowermaps.com/cell-towers/near/zip-code/94028

## Data Source

Tower data sourced from FCC licensing records and OpenCellID. For more information, visit https://www.celltowermaps.com/llms.txt