Non-VoIP numbers and virtual numbers for SMS verification
Some services only accept numbers they classify as mobile or non-VoIP. Inbox Number numbers are virtual numbers delivered over the internet. Here's what that means for SMS verification, and when our numbers are a good fit.
Get StartedDelivered and managed by Inbox Number: one account, one bill, one support team.
What 'non-VoIP' means
Services look up a number's type in carrier databases. Numbers marked as mobile are often called non-VoIP; numbers marked as VoIP or virtual are sometimes refused. We don't label our numbers as non-VoIP, and we don't promise any service will accept them.
A private number, not a public inbox
Free receive-SMS websites post every message on a public page, so anyone can read the codes sent to those numbers. With Inbox Number the number is rented to you alone and only you can read its messages.
What to expect
These are virtual numbers that work over the internet. Many services accept them, but some apps, banks and payment services refuse virtual numbers, so check a service's rules before you rely on one. Use a number only for accounts you own.
Prices
Business numbers cost $6.40 a month for the US and Canada, $6.45 for the UK and $19.50 for Australia, with 25% off when you pay yearly and no setup fee. Pay from your balance or with cryptocurrency.
Where our virtual numbers fit well
- Receiving codes for business and marketplace accounts you own
- A stable US, Canadian, UK or Australian number you keep monthly or yearly
- Customer texts on a local number
- One-time OTP numbers when you need a single code
FAQ
Are Inbox Number numbers non-VoIP?
We sell virtual numbers that work over the internet. Some services treat them like any other number; others refuse virtual numbers. Check before you rely on one.
Will it work with every service?
No. Some services block virtual numbers. Check the service's rules first; if you only need a single code, a one-time OTP number is refunded to your balance when no code arrives.
How much does it cost?
Business numbers cost $6.40 a month for the US and Canada, $6.45 for the UK and $19.50 for Australia, with 25% off when you pay yearly and no setup fee. Pay from your balance or with cryptocurrency.