Looking on the internet deeply has found these results:

Will call you at night is the most popular phrase on the web.

will call you in night 120,900 results on the web	Will call you at night 1393,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
I've been trying to call you all night. And my credit card I'll call you every night and say goodnight. I used it to pick up my ticket at will call last night. He used to call you every night. They call you the Night Demon of Sicily. Tried to call you last night. And on that note, I will call it a night.	And he likes to call you late at night... because he says you're the last voice he wants to hear. No phone calls at night, especially not to sleeping judges. She doesn't have to call at night. I'm the only neurosurgeon on call at night. I know you said to call at night but I haven't been alone. And being on call at night... I will miss you after a while. No. I want you to pick up the cell phone when I call you at night. This provision allows sub standard vessels to call at night.

will call you in night

120,900 results on the web

Will call you at night

1393,000 results on the web

More popular!

And he likes to call you late at night... because he says you're the last voice he wants to hear.
No phone calls at night, especially not to sleeping judges.
She doesn't have to call at night.
I'm the only neurosurgeon on call at night.
I know you said to call at night but I haven't been alone.
And being on call at night... I will miss you after a while.
No. I want you to pick up the cell phone when I call you at night.
This provision allows sub standard vessels to call at night.