Does the Cat B40 work on Free Mobile?
It works, with caveats.
Works with caveatsWith 2G being switched off, calls and texts fall back to 3G, which this phone supports (900 MHz, 2100 MHz). Free hasn't announced a 3G switch-off date. We haven't found confirmation that 4G Calling works on Free Mobile. 4G data should work (shared bands: 1, 3, 7, 28).
Fine for now. The catch is how calls get through: if they ride on 2G or 3G, they stop when Free Mobile switches that off.
We worked this out from the phone's published bands and Free Mobile's own published network facts (see How we check). Nobody has confirmed it for this exact pairing yet.
Free Mobile (France)
- 3G: On; no switch-off date announced
- 2G: No 2G of its own: uses Orange's 2G, which is off across mainland France since 20 October 2026 ("white zones" until 1–15 December 2026)
Cat B40
- 2G: GSM 850 / 900 / 1800 / 1900
- 3G: 850 MHz, 900 MHz, 1900 MHz, 2100 MHz
- 4G bands: 1, 3, 7, 8, 20, 28
- 4G Calling: unknown – No network or maker VoLTE confirmation found.
Other networks in France
- Orange Works with caveats
- SFR Works with caveats
- Bouygues Telecom Works with caveats
Everything about the Cat B40 · All phones on Free Mobile · Dumbphones that work in France
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Sources
How we decide: our method.