By Kimberly Chin

T-Mobile US Inc. expects to draw 1.7 million to 1.9 million postpaid customers in the second half of 2020.

Merger- and integration-related expenses are likely to be between $800 million to $1 billion.

Excluding those expenses, the carrier projects adjusted earnings before interest, taxes, depreciation and amortization in the range of $12.4 billion to $12.7 billion.

T-Mobile's shares rose 5.5% after hours to $114.

Write to Kimberly Chin at kimberly.chin@wsj.com