Each record is the best or worst value the network actually measured, with the sample floor it had to pass and how many hexes competed for it. A record among three hexes is still printed as such, so you can judge it. Where fewer than three hexes qualify, we say so rather than crown a winner. Refreshed every ten minutes.
Strongest cellular signal
4 of 4 bars
8 samples · 1,630 hexes competed · floor: at least 5 cellular samples
Average of the phone signal level (0 to 4 bars, the same scale as the status bar) across every phone that measured this hex. 4.0 means every phone saw full bars here.
Weakest cellular signal
0.44 of 4 bars
6 samples · 1,630 hexes competed · floor: at least 5 cellular samples
The measured hex where phones held the fewest bars on average. A real candidate for a signal desert.
Fastest measured download
593.1 Mbps
4 samples · 6 hexes competed · floor: at least 2 speed tests
Mean of real speed tests run inside this hex, on whatever network the phone was using at the time.
Slowest measured download
20.1 Mbps
3 samples · 6 hexes competed · floor: at least 2 speed tests
The measured hex with the slowest mean speed test. Useful if you plan to work from there.
Quietest measured place
Not enough places yet
1 hex passed the floor (at least 5 sound readings). Three are needed.
Equivalent continuous sound level from opted-in phones. Only levels are stored, never audio. 30 dB is a quiet room, 60 dB is conversation.
Loudest measured place
Not enough places yet
1 hex passed the floor (at least 5 sound readings). Three are needed.
The opposite end of the same opted-in sound layer.
Darkest night sky
Not enough places yet
1 hex passed the floor (at least 3 night readings). Three are needed.
Lowest average night-time light reading, taken only while the sun was more than 6 degrees below the horizon. Lower means darker, better for stars.
Clearest satellite sky
40.07 dB-Hz
9 samples · 2,007 hexes competed · floor: at least 5 GNSS samples
Highest average carrier-to-noise ratio of the GNSS satellites phones saw here. Above 40 is an open sky, below 25 is a canyon of buildings or trees.
Most complete hex
8 layers
2,719,255 samples · 3,289 hexes competed · floor: every measured hex qualifies
The hex measured on the largest number of different layers: Bluetooth, WiFi, cellular, GNSS, magnetic, pressure, light, sound, spectrum.
Longest watched hex
53 days
26 samples · 3,289 hexes competed · floor: visited within 30 days
Days between the first and the most recent measurement, for hexes still visited in the last 30 days. The network has been paying attention here the longest.
Why the floors
One reading can be a phone in a pocket, a bus passing, or a sensor warming up. Floors make a record mean "several phones, several passes, same answer". Sound and light exist only where people opted in, so those records will stay empty until enough of them do. Beat a record by measuring more, and this page updates itself.
Live since 2026-08-09 17:20:11 UTC. Every number
above is an exact count over the same database
Explorer and
Live Map read, never an estimate. Some pages are refreshed on a schedule rather than on every visit
(Records every ten minutes, Heartbeat every minute, Open data once a day) and say so. Node counts only, never identities.
See the
privacy policy for what is and is not collected, and the
terms of use for what may be done with it.
