Via Net Works (VNWI) 10-K 2003 FY Annual report

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Exhibit 21.1

VIA NET.WORKS, INC.
CORPORATE STRUCTURE AS OF DECEMBER 31, 2003

The following table indicates the name, subsidiary relationships and jurisdiction of formation of VIA NET.WORKS, Inc.'s direct and indirect subsidiaries.

Name					Jurisdiction of Formation
1. VIA NET.WORKS NY Corp.					New York
2. VIA NET.WORKS Holdco, Inc.					Delaware
	A VIA NET.WORKS Europe Holding B.V				Netherlands
		1. VIA NET.WORKS Nederland B.V. (100%)			Netherlands
		2. bART Holding B.V. (100%)			Netherlands
			(a) Home Vision B.V.		Netherlands
			(b) Xenovic B.V.		Netherlands
				(i) bART Den Haag B.V.	Netherlands
				(ii) bART Noord Nederland	Netherlands
				(iii) bART Midden Nederland	Netherlands
				(iv) Arameta B.V.	Netherlands
		3. VIA NET.WORKS Portugal-Tecnologias de Informacao, S.A. (100%)			Portugal
		4. VIA NET.WORKS Espana, S.L. (100%)			Spain
		5. VIA NET.WORKS IRUCo. Limited (100%)			Ireland
		6. VIA NET.WORKS Deutsche Holding GmbH (100%)			Germany
		7. VIA NET.WORKS Deutschland GmbH (100%)			Germany
		8. VIA NET.WORKS U.K. Holding Limited (100%)			U.K.
		9. VIA NET.WORKS U.K. Limited (100%)			U.K.
			(a) Netlink Internet Services Limited (100%)		U.K.
			(b) U-Net Limited (100%)		U.K.
			(c) Worldwide Web Services Limited (100%)		U.K.
				(i) Alphadial Limited	U.K.
			(d) iway Limited (100%)		U.K.
				(i) i-way Oxford Ltd.	U.K.
			(e) VIA NET.WORKS Holdco Italy S.r.L.(10%)		Italy
		10. VIA NET.WORKS Holdco Italy S.r.L(90%)			Italy
		11. VIA NET.WORKS (Schweitz) AG (100%)			Switzerland
		12. VIA NET.WORKS SERVICES AG (100%)			Switzerland
		13. VIA NET.WORKS France Holding SAS			France
		14. VIA NET.WORKS France S.A. (100%)			France
3. VIA NET.WORKS Holding Cayman					Cayman Islands
	A. ServiceNet S.A. (100%)				Argentina
4. SurfTrade U.S.A., Inc. (100%)					Delaware
5. VIA NET.WORKS U.S.A., Inc. (100%)					Georgia

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VIA NET.WORKS, INC. CORPORATE STRUCTURE AS OF DECEMBER 31, 2003