help with bahn.de registration

I am trying to buy a ticket on-line. They will not accept my telephone number,
They require my country or area code. Obviously I have given them my area code and on another part of the form they already know I am from the USA. How can I fix this so I can buy a ticket?

Posted by steven
white plains, ny, usa
648 posts

When you entered your number and area code , did you add 001 in front of the area code ? Also edited thanks to Dawn and Nigel !!

Posted by Nigel
East Midlands, England
8726 posts

try 001zzzxxxyyyy with no punctuation or symbols >> Edited, thanks to Dawn

Posted by Dawn
Denver, CO
256 posts

I just registered myself and you need "001" in front of your area code and phone number - no dashes.

Posted by Sandy
Palm Desert
93 posts

Those were the magic numbers. Thank you for the help.