AT&T Wireless Services

will sell $4 billion to $5 billion of debt in an offering that will include 5-year, 10-year and 30-year maturities, according to published reports.

Merrill Lynch

and

Salomon Smith Barney

are handling the offering by the unit of

AT&T

(T) - Get Report

. The company is expected to sell the debt next week in a private placement.

Shares of AT&T gained 48 cents, or 2.2%, to $22.24 in recent

New York Stock Exchange

trading.