The number is Granite-0-3-8-6.
4 seconds sound clip from the Double Indemnity movie soundboard.
You can hear this line at 01:41:56 in the DVD version of the movie.
Quote context
[...]
- Yeah, and I still don't like it. What do you want?
- Look, kid. I want to give you a present. This nice new nickel.
- Suppose you go on back down the hill to the drugstore and make a phone call.
- Keep your nickel and buy yourself an ice-cream cone.
- The number is Granite-0-3-8-6.
- Ask for Miss Dietrichson. First name is Lola.
- She isn't worth a nickel. If I ever talk to her, it's not going to be over any telephone.
- Tough, aren't you? Here, take the nickel and call her. She wants you to.
- She doesn't want any part of me.
- I know who told you that. It's not true.
[...]