Methodology
Data, scoring and limitations
Where the data comes from
Every transmitter on this site comes from the public radio-permit register of the Polish Office of Electronic Communications (UKE). The register is downloaded monthly and the data date is shown on every results page. The current set holds about 192,000 band-level entries describing roughly 22,000 physical base stations of Orange, Play, Plus and T‑Mobile.
The register describes permits, not measurements. It says where an operator is allowed to transmit and on which bands – it does not say what signal your phone will receive.
What the verdict is, and is not
The "good / fair / weak coverage" verdict is a distance model: for each band we apply distance thresholds from the nearest transmitter, chosen from propagation physics (lower bands carry further, which is why the thresholds are geometric rather than linear). "Real 5G" means a station transmitting on the 3.5 GHz band (n78); 5G on bands shared with LTE is labelled separately.
The model does not account for terrain, buildings, indoor attenuation, network load or the state of your device. The result is an infrastructure-based estimate, not a guarantee of service quality.
How the address ranking is scored
Each operator receives points from three components, summed into one score:
| Component | Points |
|---|---|
| Signal tier from the distance model | Excellent 40 · Good 30 · Fair 20 · Poor 10 |
| Real 5G (3.5 GHz) in range | +25 |
| Available technologies | 5G 12 · LTE 8 · 3G 3 · GSM 2 |
Ties are broken by distance to the relevant mast (for a real-5G operator, its 3.5 GHz station). The components are exposed in the JSON response (score_components) so anyone can check them.
The ranking carries a confidence level: high when at least four operators have usable signal and the scores clearly differ; medium when two or three operators are usable, or the top two are within 5 points of each other; low when fewer than two operators have usable signal or every operator's nearest mast is more than 3 km away. For anything below high, the page shows "Indicative result" with the reasons.
City pages
A city page headline ("X has the most masts") is a plain count of register entries within the town. The "Operator ranking" section runs the same algorithm as the address checker at nine points on a 3×3 grid around the centre (±0.015° latitude, ±0.022° longitude, about ±1.6 km). The result at a specific address can differ – which is why every city page links to the address check.
Known limitations
- Plus (Polkomtel) is under-represented in this register. A large part of Plus's infrastructure is recorded in other UKE registers that we do not read. Treat Plus's numbers as a lower bound and its rank as probably understated. We say so on the operator page, in the city FAQs and whenever ranking confidence is low.
- The register can include permits for stations not yet switched on, or already decommissioned.
- The address database is refreshed less often than the transmitter register; new buildings may not be found.
Partner links
"See offer" buttons may lead to operator websites through partner links with tracking parameters. They have no influence on the ranking order or score. No operator pays for placement or has any say in the algorithm.
Corrections
Are you an operator, or have you spotted an error in the data or in this description? Write to us – we check, fix and reply.
Last updated: 3 September 2026.