IMPSAT FIBER NETWORKS INC


ELVIRA RAWSON DE DELLEPIANE 150
PISO 8
BUENOS AIRES,  C1,
  ARGENTINA
54115170000
Filing DateCurrent and former namesChanged on date
2000-01-14
IMPSAT FIBER NETWORKS INC
2000-01-14
IMPSAT CORP
1996-09-05
Central Index Key (CIK)
0001022329
State of Incorporation
DE
Country of Incorporation
USA
Fiscal year end
1231
IRS #
521910372
Std. Industrial Class.
4899 COMMUNICATIONS SERVICES, NEC

Ownership (Form 3,4,5)# Filings
ALONSO HECTOR (0001225967) 1
BOLIN JAMES E (0001181530) 1
Bloom Bryan Elliot (0001381735) 1
CONNORS WILLIAM J (0001215174) 1
Dartley Edward Thomas Jr (0001368625) 2
GIROTTI MARCELO (0001225976) 2
GOMEZ MARIANO TORRE (0001225974) 2
HEINRICH MATIAS (0001225972) 2
HUFF WILLIAM R (0001125885) 3
JGD MANAGEMENT CORP /NY (0001012670) 4
Koza Eric (0001315557) 2
MORGAN STANLEY (0000895421) 6
NORTEL NETWORKS LTD (0001119664) 2
PARDO GUILLERMO V (0001225968) 1
RAMIREZ RAUL (0001220194) 1
THORNTON JOSEPH R (0001125887) 1
TORRES JOSE R (0001225969) 1
TRONCOSO IGNACIO (0001242909) 1
UBS AG (0001114446) 4
VERDAGUER RICARDO (0001225965) 1
ZERVIGON EDDY (0001286288) 1
All related persons/companies# Filings
ALC COMMUNICATIONS CORP (0000783425) 4
ALONSO HECTOR (0001225967) 1
AMERITEL MANAGEMENT INC /FI (0000806901) 4
AMERITEL MANAGEMENT INC /FI (0000806901) 4
ATLANTIC CROSSING LTD (0001269505) 4
BERMUDA RESOURCES LTD /FI 4
BOLIN JAMES E (0001181530) 1
BUDGET CALL LONG DISTANCE INC (0001269520) 4
Bloom Bryan Elliot (0001381735) 1
CLAXSON INTERACTIVE GROUP INC (0001132340) 2
CONNORS WILLIAM J (0001215174) 2
DEAN WITTER DISCOVER & CO 16
DINAN JAMES G (0001022078) 4
DOSTER THOMAS E (0001219211) 1
Dartley Edward Thomas Jr (0001368625) 2
FRONTIER CORP /NY/ 4
Fibernet GmbH (0001492582) 4
Fibernet Holdings Ltd (0001492581) 4
GC Crystal Holdings Ltd (0001492576) 4
GC IMPSAT Holdings Nederland B.V. (0001463200) 4
GC Impsat Holdings I Plc (0001492580) 4
GC Impsat Holdings II Ltd (0001492579) 4
GC Impsat Holdings III Ltd (0001492578) 4
GC PAN EUROPEAN CROSSING BELGIE BVBA 4
GC PAN EUROPEAN CROSSING DANMARK APS (0001269554) 4
GC PAN EUROPEAN CROSSING DEUTSCHLAND GMBH (0001269561) 4
GC PAN EUROPEAN CROSSING HOLDINGS BV (0001269570) 4
GC PAN EUROPEAN CROSSING LUXEMBOURG I SARL 4
GC PAN EUROPEAN CROSSING LUXEMBOURG II SARL 4
GC PAN EUROPEAN CROSSING NETWORKS BV (0001269580) 4
GC PAN EUROPEAN CROSSING UK LTD (0001269598) 4
GC ST CROIX CO INC (0001269609) 4
GIROTTI MARCELO (0001225976) 2
GLOBAL CROSSING VENEZUELA BV 4
GLOBAL CROSSING BELGIE BVBA (0001269615) 4
GLOBAL CROSSING CYPRUS HOLDINGS LTD (0001269623) 4
GLOBAL CROSSING EMPLOYEE SERVICES INC (0001269484) 4
GLOBAL CROSSING EUROPE LTD (0001269485) 4
GLOBAL CROSSING HOLDINGS LTD (0001061323) 4
GLOBAL CROSSING INTERNATIONAL, LTD (0001067933) 4
GLOBAL CROSSING IRELAND LTD (0001269501) 4
GLOBAL CROSSING LOCAL SERVICES INC (0001269508) 4
GLOBAL CROSSING LTD (0001061322) 4
GLOBAL CROSSING MEXICANA S DE RL DE CV (0001269545) 4
GLOBAL CROSSING NEDERLAND BV (0001269548) 4
GLOBAL CROSSING NETWORK CENTER LTD (0001269551) 4
GLOBAL CROSSING NORTH AMERICA, INC (0000084567) 4
GLOBAL CROSSING NORTH AMERICAN HOLDINGS INC (0001269558) 4
GLOBAL CROSSING NORTH AMERICAN NETWORKS INC (0001269560) 4
GLOBAL CROSSING NORTH AMERICAN HOLDINGS INC (0001269558) 4
GLOBAL CROSSING NORTH AMERICAN NETWORKS, INC (0001269560) 4
GLOBAL CROSSING PANAMA INC (0001269562) 4
GLOBAL CROSSING SERVICES EUROPE LTD (0001269564) 4
GLOBAL CROSSING SERVICES IRELAND LTD (0001269510) 4
GLOBAL CROSSING SVERIGE AB (0001269512) 4
GLOBAL CROSSING TELECOMMUNICATIONS CANADA LTD (0001269523) 4
GLOBAL CROSSING TELECOMMUNICATIONS, INC (0001269522) 4
GLOBAL CROSSING TELEMANAGEMENT INC (0001269524) 4
GLOBAL CROSSING VENEZUELA SA (0001269530) 4
GLOBAL MARINE HOLDINGS BERMUDA LTD 4
GOMEZ MARIANO TORRE (0001225974) 2
GT LANDING II CORP (0001269633) 4
Global Crossing (Bidco) LTD (0001360235) 4
Global Crossing Americas Solutions, Inc. (0001492568) 4
Global Crossing Asia Holdings Ltd (0001492574) 4
Global Crossing Australia Holdings Ltd (0001492573) 4
Global Crossing Australia Pty Ltd (0001492688) 4
Global Crossing Bandwidth, Inc. (0001492571) 4
Global Crossing Chile S.A. (0001492686) 4
Global Crossing Comunicaciones Ecuador S.A. (0001492687) 4
Global Crossing Comunicacoes do Brasil Ltda. (0001492689) 4
Global Crossing Costa Rica, SRL (0001492690) 4
Global Crossing Development Co. (0001492570) 4
Global Crossing Financial Markets Ltd (0001492577) 4
Global Crossing Hong Kong Ltd (0001492692) 4
Global Crossing International Networks Ltd (0001492572) 4
Global Crossing Japan KK (0001492693) 4
Global Crossing Mexicana, II S. de R.L. de C.V. (0001492694) 4
Global Crossing PEC Belgium b.v.b.a. (0001269567) 4
Global Crossing PEC Espana S.A. (0001492696) 4
Global Crossing PEC Luxembourg I SARL (0001269572) 4
Global Crossing PEC Luxembourg II SARL (0001269575) 4
Global Crossing PEC Nederland B.V. (0001492684) 4
Global Crossing PEC Switzerland AG (0001492697) 4
Global Crossing Peru S.A. (0001492835) 4
Global Crossing Servicios, S. de R.L. de C.V. (0001492842) 4
Global Crossing Singapore Pte. Ltd. (0001492836) 4
Global Crossing Telemanagement VA, LLC (0001492834) 4
HEINRICH MATIAS (0001225972) 2
HUFF WILLIAM R (0001125885) 10
IMPSAT CORP (0001022329) 241
INTERNATIONAL OPTICAL NETWORK LLC (0001269638) 4
Impsat Participacoes e Comercial Ltda. (0001492837) 4
JGD MANAGEMENT CORP /NY (0001012670) 6
KINGDON CAPITAL MANAGEMENT CORP 5
KINGDON CAPITAL MANAGEMENT LLC (0001000097) 5
Koza Eric (0001315557) 2
MORGAN STANLEY (0000895421) 15
MORGAN STANLEY DEAN WITTER & CO (0000895421) 10
NEVASA HOLDINGS LTD (0001134703) 1
NORTEL NETWORKS CORP (0000072911) 3
NORTEL NETWORKS LTD (0001119664) 3
NORTHERN ELECTRIC CO LTD 3
NORTHERN TELECOM LTD 3
Old GMS Holdings Ltd (0001269535) 4
Outrider Management, LLC (0001388110) 1
PAC PANAMA LTD (0001269605) 4
PARDO GUILLERMO V (0001225968) 1
PESCARMONA ENRIQUE M (0001134724) 1
Pan American Crossing UK Ltd (0001492575) 4
RACAL TELECOMMUNICATIONS INC (0001269610) 4
RAMIREZ RAUL (0001220194) 2
ROCHESTER TELEPHONE CORP 4
SAC BRASIL LTDA 4
SAC BRASIL HOLDING LTDA (0001269612) 4
SAC BRASIL S.A. (0001269613) 4
SAC CAPITAL ADVISORS LLC (0001018103) 4
SAC PANAMA SA (0001269586) 4
SDS MERCHANT FUND LP (0001122699) 2
SOUTH AMERICAN CROSSING HOLDINGS LTD (0001269590) 4
THORNTON JOSEPH R (0001125887) 2
TORRES JOSE R (0001225969) 1
TRONCOSO IGNACIO (0001242909) 1
Telecom Infrastructure Hardware S.R.L. (0001492838) 4
UBS AG (0001114446) 9
VERDAGUER RICARDO (0001225965) 1
ZERVIGON EDDY (0001286288) 1
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