UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

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                                   FORM 6-K/A

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                        REPORT OF FOREIGN PRIVATE ISSUER

                      Pursuant to Rule 13A-16 or 15D-16 of
                      the Securities Exchange Act of 1934


                                DECEMBER 14, 2004

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                                     TDC A/S
             (Exact name of registrant as specified in its charter)


                  NOERREGADE 21, 0900 COPENHAGEN C, DK-DENMARK
                    (Address of principal executive offices)


                                    001-12998
                            (Commission File Number)

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Indicate by check mark whether the registrant files or will file annual reports
under cover of Form 20-F or Form 40-F:

                       Form 20-F [X]     Form 40-F [ ]

Indicate by check mark whether the registrant by furnishing the information
contained in this form is also thereby furnishing the information to the
Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

                             Yes [ ]     No [X]

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This amendment Form 6-K/A filing is being made due to a missing cover page and
signature page, the original filing was timely filed on December 1, 2004



TDC BUYS NETDESIGN

TDC BUYS  NETDESIGN  A/S, A LEADING  DANISH  PROVIDER OF LAN  INFRASTRUCTURE  TO
COMPANIES, FOR A TOTAL PRICE OF DKK 350M.

NetDesign will  strengthen  TDC's position in the rapidly  growing market for IP
communications  solutions to businesses,  both in Denmark and towards pan-nordic
corporate customers.

NetDesign's  revenues  amounted to DKK 287m in 2003,  earnings before  interest,
taxes,   depreciation  and  amortization   (EBITDA)  was  DKK  24m  and  capital
expenditures totaled DKK 12m. The company has 124 employees today.

TDC expects the acquisition to have a positive  impact on TDC's EBITDA,  as well
as EBITDA less capital expenditures, in 2005 and onwards.

"NetDesign  is a  well-managed  company  with a  solid  and  predictable  growth
potential.  We will manage  NetDesign  with regard and respect for the  business
culture and  successful  business  model.  IP/LAN  solutions  are central to the
communications  solutions for businesses in the future and NetDesign gives TDC a
unique position in this fast growing  marked" says director Martin Lippert,  TDC
Business.

NetDesign  will continue with the current  management and name as an independent
subsidiary under TDC Solutions.

TDC A/S, Noerregade 21
0900 Copenhagen C
DK-Denmark
www.tdc.com



                                   SIGNATURES

   Pursuant to the requirements of the Securities Act of 1934, the registrant
has duly caused this report to be signed on its behalf by the undersigned
thereunto duly authorized.

                                                       TDC A/S
                                       -----------------------------------------
                                                     (Registrant)

   DECEMBER 14, 2004                               /s/ OLE SOEBERG
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        (Date)                                       Ole Soeberg
                                       Senior Vice President, Investor Relations