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Will your device work there?

Ask about a module and a country in any language, or paste a band list. 465 networks in 172 countries and territories, every verdict with its sources.
Certification guideWhat a cellular device needs in 11 countries: radio, network, operator and IMEI, with a buyer’s checklist.5G RedCap networks worldwide14 operators in 10 markets are commercial; 42 in 27 markets are investing.Cat-M1 and NB-IoT networksCommercial operators in 74 markets, with outdated list entries corrected.Choosing Cat.1 and Cat.1 bisWhy it works on every 4G network, and how it compares with Cat-M1, NB-IoT and RedCap.3GPP band referenceUplink, downlink, duplex and bandwidth for 70 LTE and 78 5G NR bands; filter by band or frequency.Sunset calendar2G, 3G and NB-IoT: shutdown dates for every operator we check, plus global counts of 313 switch-offs.Open dataEvery table as CSV and JSON under CC BY 4.0. Please credit us when you use it.IoT readiness index172 countries ranked on 4G coverage, LTE-M / NB-IoT, 5G and device fit, from confirmed data only (beta).Data qualityThe 11 logic checks every update must pass, and how much is cross-checked by more than one source.Printable compatibility reportTurn a device's band list into an A4 report: verdicts per country, sources, report number and QR code. Print it or save it as PDF.Multi-country project reportPick a device, a use case and target countries: verdicts, indoor-coverage risk, certification and replacement models. Save as PDF.Module compatibility rankings39 modules and devices ranked by their verdicts on 465 networks: how many they work on, in how many countries on every network, which bands they most often lack.

How the score works

Compatibility

For each network, every 4G band in use is compared with the device: coverage-layer bands (whole band below 1 GHz) weigh 2, capacity bands weigh 1. A device with the band or a superset of it scores in full; a device with only a subset (the network uses B66, the device has B4) scores half.

Score = Σ(weight × credit) ÷ Σ weight

Good: score ≥ 60%%, at least one coverage band, and none of the operator’s main bands missing. Limited: some common bands, but not all of the above. Not usable: no common band. Carrier-aggregation-only downlink bands, unlicensed LAA bands and bands from a single community source are shown but not scored.

5G is judged separately: an ordinary 5G device needs matching bands; a RedCap device also needs the operator’s commercial 5G SA with RedCap.

For Cat-M1 and NB-IoT devices, the operator must run the technology (GSMA list, with outdated entries corrected), and the device must share an LTE band: a common coverage band is good, capacity bands only are limited. Operators missing from the list are unconfirmed; shut-down networks are not usable.

Evidence grades

  • A Regulator, standards body or operator
  • B Industry body (GSMA, GSA) or trade press
  • C Community compilation; scored only when two agree

When sources disagree

We don’t pick one and pretend to be precise: we show the conflict and cite both sides, as with Band 22’s frequencies or the end of 3G in Korea. Every page lists its sources at the bottom.

Sources

The main sources used across the atlas; each country and operator page lists its own.

  1. A TS 36.101 Rel-19, Table 5.5-1 E-UTRA operating bands 3GPP (via iTecSpec) · 2026-09-30
  2. C LTE frequency bands Wikipedia · 2026-09-30
  3. C 5G NR frequency bands (Rel-19) Wikipedia · 2026-09-30
  4. C 3GPP RF bands list iTecSpec · 2026-09-30
  5. B Mobile IoT network launches (Nov 2025) GSMA · 2025-11
  6. B 2G and 3G Switch-Off – August 2026 GSA · 2026-08
  7. B 5G RedCap webinar, March 2026 GSA · 2026-03
  8. B Viewpoint: 5G RedCap – accelerating the next phase of cellular IoT GSA · 2026-04

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