best practice to suppress roaming?

[awneil]

@tobias

In Sweden, Tele2 and Telenor combined their 2G networks.

At least when using older SIM-cards from any of the two, CREG shows 5 when on the combined network, indicating that it’s roaming, but since it’s a combined network no extra roaming fees apply.

Same in UK for Orange & T-Mobile.

Have you spoken to your Service Provider to ask if they can disable roaming? Or to negotiate a better deal when roaming?

Or find a better Service Provider?

You could set manual operator selection with AT+COPS=1. But then you risk your device being uncontactable - when roaming would have allowed contact…