Can I have your phone number?
'Telefono' = teh-LEH-fo-no — four syllables, stress on the second. Don't say 'telefonO' with stress at the end.
Use at the end of a positive first meeting when you want to stay in touch. Works in both friendly and romantic contexts. More direct alternatives like 'Ti lascio il mio numero' are also common.
'Posso avere' + noun is a polite request structure. 'Il tuo numero di telefono' is the standard phrase for phone number — 'numero' can also be shortened to 'numero di cellulare' or just 'numero.' The possessive 'tuo' agrees with 'numero' (masculine).
Ti lascio il mio numero.
I'll leave you my number.
You offer your number proactively — less pressure, more confident.
Ci scambiamo i numeri?
Shall we exchange numbers?
Mutual — makes the exchange feel balanced and natural.
Sei su WhatsApp?
Are you on WhatsApp?
Very common in Italy — WhatsApp is the primary messaging platform.
WhatsApp is effectively the national communication platform in Italy. Exchanging phone numbers means exchanging WhatsApp contacts. Voice messages on WhatsApp are extremely popular among Italian friends.