The short answer: Many phone number apps (VoIP and virtual numbers) can receive SMS, but that doesn't mean they'll pass SMS verification. Banks, government services, and major accounts like Google or Apple ID often won't accept these app-generated numbers. When you truly need a verification to go through, it's safest to have a carrier number or a number from a local SIM.
- Being able to receive an SMS doesn't guarantee the verification will pass
- VoIP and virtual numbers are often rejected by banks, government services, and major platforms
- For important verifications, a carrier number or local SIM is the reliable choice
- Treat phone number apps as a backup — don't rely on them as your primary verification method
- Bloomy is data-only (no phone number, calls, or SMS), but apps like WhatsApp and other messaging services work over data
"If I get a phone number through an app, can't I just pass SMS verification while traveling?" — it's a natural question, and a common one. But there's an easy-to-miss pitfall here: "a number that can receive SMS" and "a number that works for SMS verification" are not the same thing. In this article, we'll break down the types of phone number apps, when they work and when they don't, why they get rejected, and how to choose when you really need a verification to succeed — in plain terms for beginners. You may also find our other articles on phone numbers and SMS helpful.
"A number that can receive SMS" vs. "a number that works for verification"
Most phone number apps issue a dedicated number and let you receive SMS sent to it inside the app. So in many cases, receiving an SMS is no problem at all.
The catch is that services like banks and Google check whether the registered number is "a real individual's carrier line." VoIP numbers (phone numbers that run over the internet) and other virtual numbers issued by apps are often flagged as "unsuitable for identity verification," and as a result the verification code may never be sent — or the registration itself may be refused. "I can receive it" does not equal "it will pass verification." That's the heart of this article.
Is there a phone number app that works for SMS verification? The main types
Phone number apps roughly fall into the following categories, each with a different character.
VoIP and second-number apps
These issue a number over the internet. They're handy as a secondary contact or for calls, but they tend to get rejected for verification purposes.
Virtual / IP-phone numbers
Many low-cost "internet phone" numbers are technically IP-phone numbers. They're fine for everyday calls and receiving, but they may not be accepted for verifications that involve identity checks.
In-app calling like WhatsApp
These aren't "phone number apps" — they're internet calls and chat that run over your data connection. They don't issue a new phone number, but as long as you have data, they work perfectly well as a way to stay in touch.
When it works and when it doesn't: a quick reference
These are general tendencies only. Service policies change, so always check each service's latest requirements before you rely on them.
| Use case | SMS verification with an app number (VoIP/virtual) | Notes |
|---|---|---|
| Banks, brokerages, credit cards | Often won't work | Strict identity checks; a carrier number is frequently required |
| Government / official services | Often won't work | Follow the official guidance |
| Messaging app sign-up (e.g., WhatsApp) | May not work | Accepted-number rules can change |
| Google account | May not work | Additional identity verification may be requested |
| Apple ID | May not work | Whether it's accepted varies by situation |
| General web services and social media | Sometimes works | Support varies from service to service |
As you can see, the more important the verification, the more likely an app number is to be rejected. If you're mainly struggling to receive SMS while abroad, our guides on SMS and phone numbers may help.
Why VoIP and virtual numbers get rejected for verification
To prevent mass creation of fake accounts, services classify numbers by "type" in their databases. Numbers that anyone can obtain relatively easily — like VoIP and virtual numbers — are seen as easy to abuse for automated sign-ups and impersonation, so they may be excluded from the list of numbers that receive verification codes. This isn't about whether a particular app is good or bad; it's a mechanism driven by the receiving service's security policy. That's exactly why "it's a popular app, so it'll be fine" isn't something you can count on.
Watch out for banks, government services, and major accounts
Be especially careful with the following.
- Banks, brokerages, cards: Because money is involved, identity verification is the strictest. Avoid registering or verifying with an app number — using a carrier number is the safe bet.
- Government / official services: A stalled process here can have big consequences. Follow the official, specified method.
- Major accounts (Google, Apple ID, messaging apps): These are central to daily life. One stumble during verification can affect your whole account. It's reassuring to finish these settings with your current number before you travel.
Keep in mind that each service's requirements and behavior can change without notice. This article reflects general tendencies as of June 2026; for the final word, always check each service's official guidance.
When you need certainty: a carrier number or a local SIM
For situations where the verification absolutely has to go through, the realistic approach is to prepare one of the following rather than relying on an app number.
- Keep your home carrier number active: If you arrange to retain your number before you travel, you can receive important verifications on that number.
- Get a local SIM with a number: For a long stay, holding a local number is an option too. Note, however, that some services from your home country may still require a number from that country.
Think of phone number apps as a supplementary way to stay in touch, and don't make them your primary verification method. Before you travel, sort out whether you actually need a number, SMS, and voice.
How to combine this with Bloomy's data-only eSIM
Bloomy plans are data-only by design. They don't include a phone number, SMS sending/receiving, or voice calls. On the other hand, internet calls and messaging through apps like WhatsApp and Instagram work fine wherever you have a data connection, so they're more than enough as a way to keep in touch.
So a practical setup looks like this: cover your data with a Bloomy eSIM, and for any service that needs SMS verification, finish the setup with your home carrier number before you travel — or arrange a separate number-capable option. Splitting the roles this way keeps things simple. (As with any eSIM, connection quality depends on the local network, your device, and the area, and data plans are subject to a fair-use policy.)
To find a data plan for your destination, browse by country, data amount, and duration on our eSIM comparison page. If you're unsure whether your device supports eSIM, see our compatible-device check, and for anything else, take a look at our FAQ.
Summary: phone number apps aren't a cure-all — use the right tool for the job
A phone number app may be able to receive SMS, yet still fail the verification for banks, government services, and major accounts like Google or Apple ID. Use a carrier number or local SIM for verifications that need to be reliable, and a Bloomy eSIM for your data — dividing the roles like this is the most reassuring way to prepare. Start by checking plans for your destination on the comparison page, and get your verification setup sorted before you leave.
