
TL;DR
A temporary phone number is a second number you use for a while and then drop, so your real one stays private. In the UAE the choice is narrower than in most countries, for two reasons. Every UAE SIM has to be registered to a passport or an Emirates ID, so a throwaway SIM is not really throwaway. And unlicensed internet calling is not authorised on UAE networks, so app-based numbers are better at receiving texts than at making calls. The free public SMS numbers that come up first in search are shared with thousands of people, which is why they fail the moment a service sends a verification code. If a number has to receive a code, it needs to belong only to you, which means a registered UAE SIM or a paid app-based number from another country.
What people mean by a “temporary number”
The words get used interchangeably and they do not mean the same thing. The UAE column is the one that matters if you are reading this from inside the country.
Term | What it actually is | Receives verification codes? | In the UAE |
|---|---|---|---|
Temporary or disposable number | Umbrella term for any number you plan to stop using | Depends on the type below | Nothing on its own, it is a category |
Public SMS number | A shared number on a website, inbox visible to anyone | Rarely | Works for forgettable signups only |
Burner number | A number you delete when you are done, usually inside an app | Usually, if it is dedicated to you | Texts are fine, calls can be blocked |
Virtual or VoIP number | A number that routes calls and texts over the internet | Sometimes, and some services block it | Calling over the internet is restricted |
Non-VoIP number | A number issued from a mobile network range | Yes, this is the one services trust | A registered UAE SIM is the clearest example |
Visitor or tourist SIM | A prepaid SIM sold to short-stay visitors | Yes, in the UAE | Registered to your passport |
Prepaid or pay as you go SIM | A physical or eSIM line from a local operator | Yes, in the country that issued it | Registered to your passport or Emirates ID |
Data-only eSIM | Mobile data with no number attached | No, there is no number to receive them | Gets you online, nothing else |
The split that matters is dedicated versus shared, and mobile range versus internet range. In the UAE there is a third question on top of those: who is the line registered to?
Why a throwaway SIM is not really throwaway in the UAE
UAE operators register every SIM to a person. The TDRA, the UAE telecoms regulator, says visitors can register a SIM with their passport, and residents register with their Emirates ID. There are also limits on how many lines one person can hold. For visitors it is up to two SIMs per operator, and for residents up to five.
That has three practical effects when you want a temporary number:
You cannot buy a SIM anonymously, so nothing about a local SIM keeps your identity out of it. It keeps your number out of the hands of whoever you give it to, which is a different kind of privacy.
A SIM registered in your name is yours. If a number is registered to your Emirates ID without you knowing, that is worth checking. The TDRA runs a service called Hesabati that lists the numbers registered under your ID.
Lending a registered SIM to someone else is a risk to you, not to them. The line is in your name.
Rules and operator processes change, so check the current requirements with the operator or the TDRA before you rely on any of this at the counter. The TDRA’s own documents also disagree slightly on what visitors need, which is one more reason to ask first.
Why free “receive SMS online” sites usually let you down
These sites publish a handful of numbers and show the incoming messages to whoever loads the page. They are genuinely useful for one narrow job: signing up to something forgettable that you will never need to log back into. Outside that, they break in predictable ways.
The number is shared, so someone has almost certainly already registered it with the service you are trying to join. You get “this number is already in use” and there is no way around it.
The inbox is public. Anyone watching that number can read your code, which leaves your data vulnerable.
Messages do not stick around. Receive-SMSS, one of the biggest of these sites, keeps messages for 24 hours and retires numbers periodically.
You cannot get back in. When you lose the password, the recovery code goes to a number you no longer control.
The numbers sit in ranges that services have learned to distrust, so they might not work at all.
Many of the numbers on these sites belong to other countries, so a service that wants a +971 number will not accept them.
VoIP, non-VoIP, and the real reason verification fails
Every phone number lives in a numbering range that identifies where it came from. Ranges issued to mobile operators look different from ranges issued to internet telephony providers. VoIP, or voice over IP, simply means the calls and texts travel over the internet rather than over a traditional mobile network.
Banks, Google, and a long list of other services check that range before they send a code. Numbers that look internet-issued get refused, because they are cheap to create in bulk and cheap to abandon, which makes them useful to people creating fake accounts. WhatsApp is direct about it and lists VoIP numbers as unsupported for registration outright. This is why so many people report that a number worked for one signup and got rejected by the next. A recurring complaint in a self-hosting thread on disposable numbers is exactly this pattern: people pick a provider, find it works for small services, then hit a wall at the big ones.
There is no universal list of which services block what, and providers move between ranges. The practical rule is that the stricter the service, the more likely it wants a number from a mobile range, with banks the strictest of all.
Why calling apps behave differently in the UAE
There is a second, separate issue that catches visitors out. Under the TDRA’s VoIP policy, internet calling over public networks is not authorised unless the provider is licensed, and licensed operators may block services that are not. Voice and video calls on some popular messaging apps are commonly reported to fail on UAE networks, while text messages in the same apps work normally. The policy is the likely reason, though operators do not publish which services they block.
Two things follow for temporary numbers. A number that lives in an app will usually receive texts and verification codes without trouble, but calls through that app are less predictable. And no app-based setup should be treated as a guaranteed way to make calls in the UAE. If calling matters, test it on a UAE network before you depend on it, and keep a registered SIM as the fallback.
Choosing by what you actually need
One code, once, for something low stakes
A free public SMS site is fine if you do not mind the inbox being public. Expect to try three or four numbers before one is unused on that service, and accept that you are not getting back into the account later.
A UAE number for a few weeks as a visitor
Register a visitor SIM with your passport. It is the simplest route to a number in the +971 range that local services, delivery apps and many banks will accept. Take your passport with you when you go to buy it, and check with the operator what it needs on the day.
A number you control for months
This is the marketplace, dating, freelance-client, side-project case. You want a dedicated number, an app that keeps the history, and the ability to delete the number and take another one. That is a paid second-line app or an app-based number on subscription. Texts will work. Treat calls as a bonus rather than a promise, for the reasons above.
A number in another country
Residents often need a number back home for a bank, a tax office or family. Some services accept only a number with the right country code, and some banks only text a domestic one. Your options narrow to providers that sell numbers in that country, which is a much shorter list than the general second-number market.
Your 2FA has to keep working while you travel
This is a different problem and it has a different answer. You do not need a new number, you need your existing one to keep receiving texts. The setup that works is your home SIM left active with data roaming switched off, and a separate data line handling your internet. Most current phones can run two lines at once with dual SIM, so the home number keeps receiving SMS while the data comes from an eSIM, which is typically cheaper than roaming. Set up an eSIM for your trip before you fly in, because you need an internet connection to install one. Move what you can to an authenticator app before you go, and save the backup codes.
You are moving to the UAE
A UAE SIM in your name needs an Emirates ID, and getting an Emirates ID takes time after you arrive. Until then, a visitor SIM registered to your passport is the usual bridge. Applying for jobs and viewing flats with a foreign number also tells everyone you are still overseas, which is a decision you want them making later rather than sooner. If you are not there yet, an app-based number in the UAE is not something to count on, so keep your current number active until you have a registered +971 SIM.
The same works in reverse when you leave: keeping a number back home is what stops your old bank, your accountant and your family from losing you. Once your Emirates ID comes through, get a UAE SIM in your own name anyway, since a registered mobile number is what UAE banks, government services and delivery apps will accept.
You only need data
Then you do not need a number at all, and paying for one is money wasted. A data-only plan covers maps, messaging, email and text-based chat. Calls through apps may be blocked in the UAE, as covered above, so if you need to call ordinary phone numbers, read about app-based calling setups and check what actually connects on the UAE networks.
Setting up a number that works, step by step
Decide the country the number needs to be in, before you compare providers. This eliminates most of them immediately.
If you need a UAE number, go to a registered SIM. If you need a number from another country, look for a provider that sells dedicated numbers there.
Check the provider sells dedicated numbers, not shared ones. If the site shows you the number before you pay, it is shared.
Keep the number, because most providers cannot give the same one back once you release it.
Send yourself a test message before you register the number anywhere important. Place a test call too, and do it on a UAE network, since calls are where the differences show up.
Register your low-risk accounts first, then work up.
Country by country
United Arab Emirates
A registered SIM is the dependable route to a +971 number. Visitors use a passport, residents an Emirates ID, and the number sits in a mobile range that services trust. Internet-based numbers receive texts well, but calls over the internet are restricted, so a registered SIM is the safer choice when you need a number to call from.
United States
The widest choice, and the only market where the free-tier apps are genuinely usable. Google Voice is the obvious name, though Google’s own setup guidance treats it as a US service, and getting a new number has become noticeably harder.
United Kingdom
UK numbers are straightforward to buy from app-based providers. A UK prepaid SIM is also easy to get and does not require residency, so if you are visiting anyway, that is the cheapest route to a genuine mobile-range number.
Australia
Fewer providers offer Australian numbers, so check availability before committing to a service. Australian prepaid SIMs require identity verification at activation, which usually means a passport for visitors.
Does an eSIM come with a phone number?
Not the travel kind. A data-only eSIM gives you mobile data and nothing else, so there is no number attached to it and nothing for a verification code to arrive at. Your own number is untouched by installing one, so do not worry that switching would change the number people already have for you. The relationship between the two is genuinely confusing, and it is covered properly in the explainer on whether eSIMs are attached to phone numbers.
Operator eSIMs are a different thing. When your own mobile operator issues you an eSIM, that line does carry your number, because it is your normal contract delivered without a plastic card. In the UAE it is registered to you in the same way as a physical SIM.
Before you trust any provider
Is the number dedicated to you, or shared? If the site displays it publicly, it is shared.
Who else can read the inbox? On free sites, everyone.
How long are messages kept, and can you export them?
Can you delete the number and get another one on the same subscription?
What happens when you stop paying? Most providers release the number within days.
Does the provider say anything about calls on UAE networks? If it promises them without a caveat, be sceptical.
Getting a number through Roamless
Roamless Numbers gives you a real US, Canada, UK or Australia phone number that lives in the Roamless app rather than on a SIM, on a monthly or annual subscription, with incoming calls and SMS free and outbound paid from your Credits. It receives inbound SMS including 2FA and app verification codes, and because it runs over the internet, it needs a data connection to work. It is not a UAE number, so it will not replace a registered SIM for UAE services. If you only need people to recognise your existing number when you call from abroad, our Verified Number service does that instead, at no cost to set up.
FAQ
Can I get a temporary phone number for free in the UAE?
Yes, from public SMS sites, and it will work for signing up to something disposable. It will not reliably pass verification, the inbox is public, and you cannot recover the account later. The numbers are almost never +971 numbers, so a service that wants a UAE number will refuse them.
Will a temporary number work for UAE bank 2FA?
Assume not. Banks are the strictest category and most screen out numbers that look internet-issued. For UAE accounts, the number a bank holds for you is normally a registered +971 SIM. If your bank is the reason you are reading this, keep your existing number reachable or switch that account to an authenticator app.
Can I use a temporary number for WhatsApp in the UAE?
Not an internet-based one. WhatsApp lists VoIP numbers as unsupported for registration, so app-based second numbers are the wrong tool for this job. You need a mobile number that is yours alone, since WhatsApp allows one account per number and a shared public number has almost always been claimed already. A registered UAE SIM works. Separately, WhatsApp voice and video calls can be blocked on UAE networks even when the app registers fine.
Do I need my passport to buy a SIM as a visitor in the UAE?
Yes, a SIM has to be registered. The TDRA says visitors can register with a passport. Check with the operator on the day, because its counter staff apply the current process.
Do temporary numbers expire?
Public ones cycle constantly, often within days. Subscription numbers stay yours while you keep paying and are usually released shortly after you stop, so a missed payment can cost you the number and the accounts attached to it. A visitor SIM expires when its validity period ends.
Can I keep a temporary number permanently?
Yes, if you keep the subscription running. At that point it is simply a second line. Number porting is rarely offered on app-based numbers, so treat the number as borrowed rather than owned.
Is using a temporary number legal in the UAE?
Using a registered SIM, or an app-based number for texts, to protect your privacy is normal. Using a number to evade identity verification, run multiple accounts against a service’s terms, or commit fraud is not, and providers cooperate with law enforcement. Registering SIMs in your name for other people puts you on the hook for what they do with them. Rules change, so check the TDRA for the current position.