Google rejects VoIP numbers and over-used ranges — the famous "this number cannot be used for verification". Real mobile numbers fix it: verify Gmail in minutes, from $0.50.
Google's filters exist to stop bot farms — and they catch most VoIP services in the process. A genuine mobile number sails through.
Google detects and blocks VoIP ranges — including Google Voice itself. eSIMfly numbers come from real carrier ranges, so the "cannot be used" error disappears.
The permanent eSIM number is safe to set as your Google recovery number — it doesn't vanish with a carrier change or a move abroad, so you can always get back in.
Google challenges logins from new locations — which is every trip you take. Incoming SMS on the eSIM number works worldwide, so the challenge never locks you out.
Temporary from $0.50 for a one-off signup, or the permanent UK eSIM for recovery duty.
Type the number into Google's verification field during Gmail account creation.
The SMS lands in seconds. Enter it and your new Google account is live.
💡 Never set an expiring number as your recovery number. A temporary number is perfect for the signup check, but if you also save it as the account's recovery number, a future lockout becomes permanent once it expires. Either leave recovery on a number you keep, or use the permanent O2 SMS eSIM ($9.87/30 days) for both jobs.
Google is one of the strictest platforms - it rejects VoIP numbers (including Google's own Voice numbers) and numbers that have verified too many accounts. eSIMfly temporary numbers come from real carrier ranges, and the permanent option is a genuine UK mobile on the O2 network, so they pass Google's line-type checks.
Yes. At signup, enter a temporary number from your eSIMfly dashboard and type in the code that appears within seconds. Google links the verification to that number instead of your personal one.
Only if it's the permanent number. Recovery numbers matter most months or years later - exactly when a temporary number is long gone. The permanent O2 SMS eSIM ($9.87/30 days) stays yours, so account recovery always works. Never set an expiring number as recovery.
That message usually means the number is VoIP or has been used for too many Google accounts. Fresh numbers from real mobile ranges - which is what eSIMfly provides - avoid both problems.
With the permanent eSIM number, yes - incoming SMS works worldwide, so 2FA codes reach you in any country. That said, for daily 2FA Google's own prompts or an authenticator app are excellent; the SMS number is your reliable fallback and recovery path.
Each number verifies a limited count of Google accounts (Google enforces this server-side). Our numbers are for legitimately registering and protecting your own accounts - a personal Gmail, a business one, a project address - not for mass account creation, which Google's systems detect and ban.
Verifying other services? See the Google Voice alternative, ChatGPT, LinkedIn or general SMS verification numbers — or compare all options on the virtual number page.
