FILED PURSUANT TO RULE 424(B)(4) OF THE
SECURITIES ACT OF 1933, AS AMENDED, WITH RESPECT
TO REGISTRATION STATEMENT NOS. 333-40495 AND 333-40495-01.
PROSPECTUS SUPPLEMENT
To Prospectus dated January 9, 1998
_____________________________
2,645,000 6 3/4% EXCHANGEABLE PREFERRED SECURITIES
MANDATORILY REDEEMABLE 2009
(LIQUIDATION AMOUNT $50 PER PREFERRED SECURITY)
ICG FUNDING, LLC
GUARANTEED TO THE EXTENT SET FORTH HEREIN BY
AND EXCHANGEABLE INTO THE COMMON STOCK,
$.01 PAR VALUE, OF
ICG COMMUNICATIONS, INC.
200,000 SHARES OF COMMON STOCK OF
ICG COMMUNICATIONS, INC.
_______________________________
This Prospectus Supplement relates to the resale by the
holders thereof of the 6 3/4% Exchangeable Limited Liability
Company Preferred Securities (the "Preferred Securities"),
liquidation amount $50 per Preferred Security, which represent
preferred undivided beneficial interests in the assets of ICG
Funding, LLC, a limited liability company formed under the laws
of the State of Delaware ("Funding"), and the shares of common
stock, par value $.01 per share (the "Common Stock"), of ICG
Communications, Inc., a Delaware corporation ("ICG" and, together
with its subsidiaries, "ICG" or the "Company"), issuable upon
exchange of the Preferred Securities. This Prospectus Supplement
also relates to the resale by Funding of up to 200,000 shares of
Common Stock.
This Prospectus Supplement supplements and amends (a)
certain information contained on page 27 under the caption
"Exchange Rights-General" in the Prospectus dated January 9, 1998
(the "Prospectus") and (b) the names of and information relating
to the Selling Holders contained on page 37 under the caption
"Selling Preferred Securityholders" in the Prospectus.
SEE "RISK FACTORS" BEGINNING ON PAGE 12 OF THE PROSPECTUS FOR
INFORMATION THAT SHOULD BE
CONSIDERED BY PROSPECTIVE INVESTORS.
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY
THE SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION
NOR HAS THE SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES
COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS.
ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
THE DATE OF THIS PROSPECTUS SUPPLEMENT IS MARCH 20, 1998
<PAGE>
(a) The information in the Prospectus relating to the
aggregate number of shares of Common Stock into which the
Preferred Securities are exchangeable at any time, in whole or in
part, prior to the Mandatory Redemption Date (unless earlier
redeemed), at the option of the holder thereof and in the manner
described in the Prospectus, into shares of Common Stock at an
initial exchange rate of 2.0811 shares of Common Stock for each
Preferred Security (equivalent to an exchange price of $24.025
per share of Common Stock), subject to adjustment as described
under "--Exchange Rights--Exchange Rate Adjustments" in the
Prospectus (based on the exchange rate on the Original Closing
Date), which is contained under the caption "Exchange Rights-
General," is hereby amended. The aggregate number of such shares
of Common Stock into which the Preferred Securities are
exchangeable is 5,504,510 shares of Common Stock (based on the
exchange rate on the Original Closing Date).
(b) The following information updates and replaces in its
entirety the information contained under the caption "Selling
Preferred Securityholders" on page 37 of the Prospectus:
SELLING PREFERRED SECURITYHOLDERS
The Selling Holders may from time to time offer and sell
pursuant to this Prospectus any or all of the Preferred
Securities and shares of Common Stock issued upon exchange
thereof. The term "Selling Preferred Securityholder" includes the
holders listed below and the beneficial owners of the Preferred
Securities and their transferees, pledgees, donees or other
successors.
The following table sets forth information with respect to
the Selling Preferred Securityholders of the Preferred Securities
and the respective number of Preferred Securities beneficially
owned by each Selling Preferred Securityholder that may be
offered pursuant to this Prospectus. Such information has been
obtained from the Selling Preferred Securityholders.
Number of
Preferred
Selling Preferred Securityholders Securities
--------------------------------- ----------
Allstate Insurance Company 40,000
Bear, Stearns & Co. Inc. (formerly listed under
the name "Bear Stearns Securities Corp.") 263,000
BNP Arbitrage SNC 15,000
Capital Markets Transactions, Inc. 125,000
Christian Science Trustees for Gifts and
Endowments 2,600
Chrysler Corporation Master Retirement Trust 44,500
Declaration of Trust for the Defined Benefit
Plan of ICI American Holdings Inc. 10,800
Declaration of Trust for the Defined Benefit
Plan of ZENECA Holdings, Inc. 7,400
Delaware State Employees Retirement Fund 35,400
Delta Air Lines Master Trust 34,800
Deutsche Morgan Grenfell Inc. (1) 20,000
Donaldson, Lufkin, & Jenrette Securities Corp. 33,400
First Church of Christ Scientist-Endowment 2,600
General Motors Employees Domestic Group Trust 121,450
GPZ Trading 33,000
Highbridge Capital Corporation 120,000
Hillside Capital Incorporated Corporate Account 3,000
LB Series Fund, Inc., High Yield Portfolio 150,000
Lutheran Brotherhood High Yield Fund, a Series
of the Lutheran Brotherhood Family of Funds 100,000
Merrill Lynch Pierce Fenner & Smith, Inc. 59,000
MFS Convertible Securities Fund 100
MFS Total Return Fund 24,900
Millennium Trading Co., L.P. 20,000
Natwest Securities Limited 15,000
2
<PAGE>
Number of
Preferred
Selling Preferred Securityholders Securities
--------------------------------- ----------
Northwestern Mutual Life Insurance Company (2) 20,000
OCM Convertible Limited Partnership 2,500
OCM Convertible Trust 63,700
Paloma Securities L.L.C. 145,000
Q Investments, L.P. 71,250
R2 Investments, LDC 80,000
Raytheon Company Master Pension Trust (formerly
listed under the name "Hughes Aircraft
Company Master Retirement Trust") 23,600
SBC Warburg Dillon Read Inc. 24,000
Sound Shore Partners, L.P. 25,000
State of Connecticut Combined Investment Funds 54,900
State Employees' Retirement Fund of the State
of Delaware 15,200
Summer Hill Global Partners, L.P. 800
The J.W. McConnell Family Foundation 6,550
Thermo Electron Balanced Investment Fund 9,400
Transamerica Life Insurance & Annuity 40,000
Triton Capital Investments, Ltd. 51,000
Vanguard Convertible Securities Fund, Inc. 39,300
WG Trading Company Limited Partnership 17,000
---------
TOTAL 1,970,150
-----------------------
(1) Deutsche Morgan Grenfell Inc. and its affiliated companies
and/or individuals may, from time to time, own, have
positions in, or options in ICG securities and may also
perform advisory services, and/or lending or other credit
relationships with ICG. Specifically, Deutsche Morgan
Grenfell Inc. was a co-manager in the offering of the
Preferred Securities.
(2) In the ordinary course of business, Northwestern Mutual
Investment Services, Inc., Robert W. Baird & Co.
Incorporated, Baird/Mark Capital Group, and MGIC Mortgage
Securities Corporation, each of which is a broker-dealer and
affiliated with The Northwestern Mutual Life Insurance
Company, may, from time to time, have acquired or disposed
of, or may in the future acquire or dispose of, securities
of ICG, Funding or their affiliates, for such broker-
dealers' own accounts or for the accounts of others. Other
affiliates of The Northwestern Mutual Life Insurance Company
may, in the ordinary course of business, effect transactions
in the securities of ICG, Funding or their affiliates. The
Northwestern Mutual Life Insurance Company and its
affiliates may, in the ordinary course of business, take
part in transactions involving the real property of ICG
Communications, Inc., ICG Funding, LLC or their affiliates.
3
