<PAGE> 1
Filed Pursuant to Rule 424(b)(3)
File No. 333-56385
300,000 Warrants to Purchase
1,560,000 Shares of Class A Common Stock
Iridium World Communications Ltd.
Supplement dated February 23, 1999 to
Prospectus dated August 14, 1998
The "Selling Holders" table on page 20 of the Prospectus dated August 14, 1998,
is hereby amended by a total of 93,175 Warrants representing 484,509 shares of
Class A Common Stock issuable upon conversion with the addition of the
following Selling Holders:
<TABLE>
<CAPTION>
SECURITIES OWNED PRIOR
TO THE OFFERING
--------------------------------
Selling Holders Warrants Class A Common Stock
- --------------- -------- --------------------
<S> <C> <C>
Credit Suisse First Boston Corporation 45,365 235,898
Smith Barney High Income Fund 10,475 54,470
Deephaven Market Neutral Trading Limited 9,254 48,120
High Income Opportunity Fund 6,725 34,970
Smith Barney Diversified Strategic
Income Portfolio 5,000 26,000
Managed High Income Fund 4,125 21,450
Deephaven Market Neutral Trading LP 3,966 20,623
Stark Trading 3,230 16,796
Shepherd Investments International, Ltd. 1,385 7,202
Highland Capital Management 1,000 5,200
Zenix Income Fund 1,000 5,200
Smith Barney/Travelers High Income Portfolio 925 4,810
Smith Barney U.S.A. High Yield Fund 400 2,080
Nippon Diversified Strategic Income Portfolio 125 650
Global Horizons Diversified Fund 100 520
Greenwich Street Series: Diversified Strategic
Income Fund 100 520
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