Using 'Qué' instead of 'Cuál'
Mistake: “¿Qué es tu número de teléfono?”
Correction: ¿Cuál es tu número de teléfono?
kwahl ess too NOO-meh-roh deh teh-LEH-foh-noh
This is the most common and direct way to ask for someone's phone number informally. It uses 'tu' (your), which is perfect for friends, peers, or people your age.

Exchanging numbers is a key part of making new friends or contacts. Knowing how to ask is essential!
What is your phone number? — in Spanish
kwahl ess soo NOO-meh-roh deh teh-LEH-foh-noh
This is the formal version of the main phrase, using 'su' instead of 'tu'. It's the polite and respectful way to ask someone you don't know, an older person, or someone in a professional setting.
meh dahs too NOO-meh-roh
A very common and slightly more casual way to ask, translating to 'Can you give me your number?'. It feels a bit softer and more conversational than the direct 'What is...?' question.
meh PWEH-deh dahr soo NOO-meh-roh
This is the polite, formal version of 'Can you give me your number?'. Using 'puede' and 'su' makes it respectful and suitable for almost any formal interaction.
kwahl ess too MOH-veel
In Spain, 'móvil' is the standard word for a mobile/cell phone. This is the go-to phrase you'll hear and use there.
kwahl ess too seh-loo-LAHR
Throughout Latin America, 'celular' (or 'cel' for short) is the most common word for a cell phone. This is the equivalent of asking for someone's 'móvil' in Spain.
meh PAH-sahs too kohn-TAHK-toh / whats-APP
A modern and very common alternative that means 'Can you send me your contact info/WhatsApp?'. Since WhatsApp is tied to a phone number, this achieves the same goal in a very natural way.
Choosing the right way to ask depends heavily on formality and context. Here’s a quick guide to the most common options.
| Phrase | Formality | Best For | Avoid When |
|---|---|---|---|
| ¿Cuál es tu número de teléfono? | Informal | Friends, classmates, and people your own age. | Speaking to your boss, an elderly person, or a new client. |
| ¿Cuál es su número de teléfono? | Formal | Professional settings, showing respect, or with strangers. | Chatting with close friends, as it can sound a bit stiff. |
| ¿Me das tu número? | Casual | Social situations where you feel a friendly connection. | Formal or professional contexts where it's too direct. |
| ¿Me puede dar su número? | Polite / Formal | Asking for information politely from service staff or officials. | Hanging out with buddies, where it's unnecessarily formal. |
The sounds are mostly straightforward for English speakers. The word 'teléfono' has four syllables, but each is pronounced exactly as it looks.
The main grammatical hurdles are knowing to use 'cuál' instead of 'qué' and choosing correctly between the informal 'tu' and the formal 'su'.
Understanding when to be direct versus indirect, and the high importance of formality ('tu' vs. 'su'), requires some cultural awareness.
¡Qué bien me caíste! ¿Cuál es tu número de teléfono para que sigamos en contacto?
I really liked you! What's your phone number so we can stay in touch?
Disculpe, señor, ¿me puede dar su número para confirmar la cita mañana?
Excuse me, sir, can you give me your number to confirm the appointment tomorrow?
Oye, se me va a morir la batería. Pásame tu celular rápido antes de que se apague.
Hey, my battery is about to die. Give me your cell number quick before it turns off.
Para completar su registro, necesito su nombre completo y su número de teléfono, por favor.
To complete your registration, I need your full name and your phone number, please.
In most of the Spanish-speaking world, asking for a phone number is essentially asking for someone's WhatsApp. It's the primary mode of communication. Don't be surprised if someone asks, '¿Tienes WhatsApp?' instead of asking for your number directly.
While asking directly is fine, a softer, common strategy is to offer your number first. Saying something like 'Te doy mi número y me escribes cuando puedas' ('I'll give you my number and you can text me when you can') puts the ball in their court and can feel less demanding.
The distinction between 'tu' (informal) and 'su' (formal) is culturally important. Using 'tu' with an authority figure or an elderly person can be seen as disrespectful. When in doubt, starting with the formal 'su' is always the safer and more polite option.
When someone gives you their number, they might say it as single digits ('seis, uno, siete...') or group them in pairs ('sesenta y uno, setenta...'). Be prepared to hear it either way! It's also common to say 'cero' for zero, not 'oh' like in English.
Mistake: “¿Qué es tu número de teléfono?”
Correction: ¿Cuál es tu número de teléfono?
Mistake: “Asking your new boss: '¿Cuál es tu número?'”
Correction: Asking your new boss: '¿Cuál es su número?'
Mistake: “Just asking, '¿Cuál es tu número?'”
Correction: '¿Cuál es tu número de teléfono/móvil/celular?'
After they tell you their number, it's a great idea to repeat it back to them to make sure you got it right. You can say, 'A ver, es el...' ('Let's see, it's...') and then say the number. This avoids future communication mishaps.
A very common and friendly thing to do right after getting someone's number is to send them a quick WhatsApp message like, 'Hola, soy [Your Name]. Ya tienes mi número.' ('Hi, it's [Your Name]. Now you have my number.'). This confirms the number works and saves your contact in their phone.
In casual conversation, you'll often hear shortened versions of the words for phone. People in Latin America might say 'cel' instead of 'celular', and in some places like Chile, 'fono' is a common short version of 'teléfono'.
The word 'móvil' is overwhelmingly dominant for 'cell phone.' Using 'celular' will mark you as a foreigner or someone who learned Spanish elsewhere, though you'll be understood.
Both 'celular' and 'teléfono' are very common. It's also very common to ask for someone's 'WhatsApp' directly. The prefix for Mexican numbers (+52) is important when exchanging with foreigners.
The use of 'vos' instead of 'tú' is standard, which changes the verb. So instead of '¿Me das...?', you'll hear '¿Me das...?' (same spelling, different conjugation context) and instead of '¿Tienes...?' you'll hear '¿Tenés...?'.
The language is very fluid and fast. Direct requests like 'Dame tu número' ('Give me your number') can be common in casual contexts and don't sound as abrupt as they might in English.
Claro, es el 612 345 678.
Of course, it's 612 345 678.
Gracias. Ahora te mando un mensaje para que tengas el mío.
Thanks. I'll send you a message now so you have mine.
¿Lo apuntaste?
Did you write it down?
Sí, ya lo guardé en mis contactos. ¡Gracias!
Yes, I just saved it in my contacts. Thanks!
¡Dale, perfecto!
Go for it, perfect!
Si quieres, te doy mi número.
If you want, I can give you my number.
This links the English word 'call' with the sound of the correct Spanish word 'cuál', reinforcing the right choice for this specific question.
The biggest difference is that Spanish distinguishes between 'qué' (what) and 'cuál' (which/what), where English just uses 'what'. For asking for specific information like a name or number, Spanish prefers 'cuál'. Another key difference is the built-in formality; English relies on tone and extra words ('could you please'), while Spanish uses different pronouns ('tu' vs. 'su') and verb forms to show respect.
This is the natural answer to the question you just learned to ask.
A very common and modern alternative to asking for a phone number directly.
It's the logical next step after getting someone's number.
Expands your ability to ask for different types of contact information, especially in professional settings.
Question 1 of 3
You're at a business conference and need to get the contact info of a potential client, an older gentleman. How do you politely ask for his number?
Knowing a phrase is one thing — using it at the right moment is another. Read 200+ illustrated and narrated Spanish stories to see phrases in the contexts where they actually belong.
Think of 'cuál' as meaning 'which one?' and 'qué' as meaning 'what?' in a definitional sense. When you ask for a phone number, you're asking for 'which one' out of all the possible numbers that belongs to that person. It's a request for specific data, which is a classic use case for 'cuál' with the verb 'ser'.
'Teléfono' is a general term for any phone, including a landline. 'Móvil' is what you'll almost exclusively hear in Spain for a mobile/cell phone. 'Celular' is the standard term for a cell phone throughout Latin America. Using the right one will make you sound more like a local!
It's a great question! Use 'tu' with people you know well, friends, family, children, and people your own age in casual settings. Use 'su' for people you don't know, older people, authority figures (like police or bosses), and in any professional or formal setting. When in doubt, starting with 'su' is always the safest and most polite choice.
Not necessarily rude, but context is everything. In a business setting, it's normal. In a social setting, it can feel a bit forward depending on the situation. That's why softer approaches like asking '¿Tienes WhatsApp?' or offering your number first ('Te doy mi número') are very popular alternatives.
It's easy! Just say 'Mi número es...' followed by the digits. You can say them one-by-one (e.g., 'seis, uno, dos...') or in pairs ('sesenta y uno, veinte...'). For zero, always use 'cero'.
You can be direct! Asking '¿Tienes WhatsApp?' (Do you have WhatsApp?) or '¿Me pasas tu WhatsApp?' (Can you give me your WhatsApp?) is extremely common and natural. It's often the preferred way to ask to stay in touch.
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