how to stack variables in different columns?

[Ramgem]

I have a data table that consists of customers  ID's and their telephone numbers in the following manner:

Customer ID	telephone number
5550	9613456789
5550	9613657894
6758	9611567854

Which function enables me to have the following format :

Customer ID	telephone number 1	telephone number 2
5550	9613456789	9613657894
6758	9611567854	.

Thank you in advance for all your help

[RamKumar]

Have a look at proc transpose.

[Loko · Accepted solution]

Hello,

data have;
input Customer_ID  telephone_number $;
datalines;
5550 9613456789
5550 9613657894
6758 9611567854
;

proc transpose data=have out=want(drop=_name_) prefix=Telephone;
by Customer_ID;
var telephone_number;
run;

[Ramgem]

Thank you that was very helpfull