Your phone number is your Revolut login. Put it on a permanent UK mobile number that never changes — and receive Revolut codes in any country, on any trip, after any move.
Revolut identifies you by phone number, not email. That's convenient — right up until you change SIMs. A permanent eSIM number removes the weakest link.
Swap carriers, move countries, replace phones — the eSIM number stays the same, so your Revolut login identity is never at the mercy of a carrier contract.
Incoming SMS works worldwide as standard. Freeze a card from a beach in Thailand or approve a login from a café in Mexico City — the code always reaches you.
A banking-only number nobody knows is a poor target for SIM-swap fraud — and eSIMs can't be cloned over the counter at a phone shop the way physical SIMs can.
Buy the permanent UK number and install the eSIM — about a minute from purchase to active.
Profile → Personal details → Phone number. Change it while your old SIM still receives SMS.
The verification SMS arrives on your eSIM instantly — and your login number is settled for good.
💡 Never use an expiring number as a Revolut login. Because Revolut signs you in by phone number, a one-time temporary number is the wrong tool here — once it expires, recovering the account means proving your identity to support. Use the permanent O2 SMS eSIM ($9.87/30 days) and keep the plan active for as long as you bank with Revolut.
Revolut blocks VoIP numbers - it requires a real mobile number because the number literally is your login identity. eSIMfly numbers are genuine UK mobile numbers on the O2 network via eSIM, so they pass Revolut's line-type checks like any physical SIM.
Unlike most apps, Revolut uses your phone number as your account identifier - you sign in with the number itself, not an email. Losing the number means a support process to prove your identity and migrate the account. Keeping one permanent number avoids that entirely.
With a normal SIM, only while roaming works. With the eSIMfly permanent number, incoming SMS works worldwide as standard - the eSIM lives in your phone and receives codes in any country, so your Revolut login works from anywhere.
Yes. In the Revolut app go to Profile → Personal details → Phone number and update it. Revolut verifies both numbers where possible, so do the change while your old SIM is still active for the smoothest switch.
No. Because the number is your login, an expired temporary number means a locked account and an identity-verification process with support. Always use the permanent O2 SMS eSIM ($9.87/30 days) for Revolut - the number stays yours as long as you keep the plan.
It reduces the risk considerably. SIM-swap attacks start with a number the attacker can associate with you. A dedicated eSIM number used only for banking apps - never shared publicly - is a much harder target, and eSIMs can't be swapped at a carrier store the way physical SIMs can.
Also securing other accounts? See PayPal, Wise, WhatsApp or general SMS verification numbers — or compare all options on the virtual number page.
