It means 'What is your telephone number?'
If you have one, and want to give it, you can simply give the number by digits:
0 - cero (THEYraw) (TH as in 'thin')
1 - uno (OOnaw)
2 - dos (thoss) (th as in 'then')
3 - tres - trace
4 - cuatro (CWATraw)
5 - cinco (THEENGcaw)
6 - seis (SAYss)
7 - siete (see-ETTay)
8 - ocho (OCHaw)
9 - nueve (noo-AYvay)
Por favor, ¿Puedo tener su número de teléfono?
The phone number of the Spanish Fork Public Library is: 801-798-5010.
The phone number of the Spanish Springs Library is: 775-424-1840.
¿Cuál es tu número? would be the best way to ask "What is your number" in Spanish.
The phone number of the Spanish River Library is: 561-393-7852.
The phone number of the Historic Spanish Point is: 941-966-5214.
The phone number of the Colonial Spanish Quarter And Spanish Quarter Museum is: 904-342-2857.
The phone number of the Spanish Governor'S Palace is: 210-224-0601.
The phone number of the Spanish Peaks Library District is: 719-738-2774.
Ask them for it.
Ask the person or ask that person to lend you his or her phone and beep your number.
The phone number of the Old Spanish Fort Museum is: 228-769-1505.