A text lands from a number you don't recognise - or worse, from a name like "INFO" or "Royal Mail" that you can't quite trust. Before you tap a link or fire back a reply, it's worth a moment to work out who texted me, and is it safe? This guide walks through the free ways to find out who sent a text in the UK, and the red flags that mean you should delete it rather than answer.
Start with how the text appears
How a message shows on your phone tells you a lot before you do anything:
- A normal UK mobile sender starts 07 - an individual or a business texting from a mobile.
- A short code (five or six digits, like 60123) is usually a legitimate business service - banks, deliveries and two-factor codes often use these.
- A name instead of a number ("an alphanumeric sender ID", such as your bank's name) is set by the sender. It looks official, but scammers can spoof these names and even drop their message into the same thread as genuine ones.
- An international number (starting + and a country code you don't recognise) texting you out of the blue is a common scam pattern.
Our free phone number checker tells you instantly whether a number is a UK mobile, landline, or something else - a quick first filter when a text arrives from digits you don't know.
Free ways to find out who texted you
Once you've looked at the sender, here are the practical, free checks:
- Search the number or sender online. Type the full number (or the sender name plus a word like "text" or "scam") into a search engine in quotes. Scam and marketing senders are often already reported by other people.
- Check the context. Were you expecting a delivery, a verification code, an appointment reminder or a reply from a company? A message that fits something you're actually doing is far more likely to be genuine.
- Look in your own apps. Your bank's app, your email and your order confirmations usually list the numbers and sender names a company uses, so you can match them up.
- Ask the obvious question. A message from "your child's new number" or "your bank" that needs something from you right now is exactly the kind a scammer sends - see our guide to scam text messages (smishing).
Why you often can't get a name
There's no public UK directory that links a mobile number to its owner, and data-protection rules stop networks handing out subscriber details. So if a text comes from an ordinary 07 mobile, you can confirm it's a UK mobile and check what others have reported, but you usually can't pull up the sender's name. The same limits apply to reverse phone number lookup sites that promise to "reveal" who texted you - be sceptical of any that charge for it.
Is the text a scam? The red flags
Most texts are harmless, but treat these as warning signs:
- A link asking you to log in, pay a "small fee", or "verify" your details.
- Urgency - "within 24 hours", "final notice", "your account will be closed".
- A request for codes, passwords or card details - no genuine organisation asks for these by text.
- An unexpected context - a parcel you didn't order, a fine you don't recognise, a "Hi Mum" message from a new number.
If a message ticks any of these boxes, don't reply and don't tap anything. Replying simply confirms your number is live and active, which can bring you more.
What to do next
- If it might be genuine, verify it yourself: log into the company's app or call them on a number from their website (159 for banks) - don't use any number or link in the text.
- If it's a scam, forward it free to 7726 (it spells "SPAM"), which reports it to your network, then delete it. You can also report it to Action Fraud if you lost money or shared details.
- If it's persistent nuisance marketing, you can block the sender and register with the TPS - see how to stop nuisance and cold calls.
The bottom line
Finding out who texted you is usually quick free detective work: check how the sender appears, run an unfamiliar number through a free checker, search it online and weigh the context. Never trust a sender name or link at face value - verify anything important through the company's own app or a trusted number, and forward genuine scams to 7726. If you also get calls from unknown numbers, our guide to who called me covers the same checks for voice calls.
Frequently asked questions
How can I find out who texted me for free?
Start by checking how the sender appears - a UK mobile (07), a short code, a sender name or an international number - then run an unknown number through a free phone number checker and search it online in quotes. Context helps too: a message matching a delivery, code or company you're dealing with is more likely genuine.
Can I find out who sent a text from an unknown number?
You can confirm the number type and area and check crowd-sourced reports, but you usually can't get the sender's name. UK mobile numbers aren't listed in any public directory, and data-protection rules stop providers sharing who a number belongs to.
Why did I get a text from a name instead of a number?
That's an alphanumeric sender ID, set by the sender so the message shows a name (like a bank or courier) rather than digits. It's common for genuine businesses, but scammers can fake these names and even slot a fake message into a real conversation thread, so a familiar name isn't proof.
Should I reply to a text from an unknown number?
Not to "find out who it is". Replying confirms your number is active and can attract more messages. If the text might be genuine, verify it through the company's official app or website; if it looks like a scam, forward it to 7726 and delete it without replying.
