Multi-network IoT SIM: coverage on Telefónica, Vodafone, Orange, MásMóvil and 750+ global networks
Short answer
A multi-network IoT SIM is not tied to a single carrier. In Spain it accesses Telefónica, Vodafone, Orange, and MásMóvil; internationally, 750+ networks across 190 countries (AT&T, Deutsche Telekom, etc.). The device authenticates against the network with the strongest available coverage, automatically, without reconfiguration. One contract, one portal for every SIM, and your device doesn't lose connectivity because one operator has issues.
Why a single operator usually isn't enough
If your device moves, crosses borders, or sits in patchy coverage, betting on a single operator is buying single points of failure: when that network goes down or your SIM is out of coverage, your device stops working. Multi-carrier solves this at the network layer, not the hardware layer.
- 750+ aggregated local networks
- Automatic switching to the best operator
- Permanent roaming, no EU like-at-home limits
- Static IP and private APN optional
How it works in practice
You buy one IoT SIM (2FF, 3FF, 4FF, or solderable MFF2). The SIM toolkit picks the best local network. If that network fails, the SIM tries another. Your platform sees the device always connected — no profiles to juggle, no per-country operator contracts to negotiate.
When to choose multi-carrier (and when not)
It's the right choice for international fleets, rural deployments, underground parking, mission-critical alarms, EV chargers, and any case where a network failure is a product failure. If all your devices stay in a single city well covered by one operator and never move, a mono-operator SIM may be cheaper — but you lose the redundancy.
Multi-carrier coverage validation for your case
Send us the countries you'll deploy in and the device SKUs you're using. We return a per-country network availability map, supported technologies, and a plan sized to your expected consumption. If it fits, we ship trial SIMs.
Frequently asked questions
What does multi-network mean in Spain?+
The same SIM can attach to all four major Spanish carriers — Telefónica, Vodafone, Orange and MásMóvil — and authenticates against whichever one has the strongest signal at each location. It is not 'soft' fallback to a preferred network: it is active selection by signal quality.
How is cross-border roaming billed?+
Single aggregated plan. No border-crossing fees, no per-country renegotiations. Your invoice aggregates total usage across all your SIMs; the portal shows per-country breakdowns.
Can I lock a SIM to a specific network?+
Yes — optionally you can force a preferred network or block roaming to a specific country from the portal or via the REST API. Useful when local regulation demands it.
What if all networks in a country are down?+
Very rare (the 3-4 main national networks rarely fail at once). For cases where even that probability is too high we offer satellite as an additional fallback.
Does it work with LTE-M and NB-IoT?+
Yes, in countries where the local operator has deployed it. For pure LPWA cases we recommend validating per-country coverage before deploying — we do this for you in the validation session.
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