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Filed Pursuant to 424(b)(3)

Registration No. 333-99293

TSI TELECOMMUNICATION HOLDINGS, LLC

TSI TELECOMMUNICATION SERVICES INC.

TSI TELECOMMUNICATION HOLDINGS, INC.

TSI TELECOMMUNICATION NETWORK SERVICES INC.

TSI FINANCE INC.

Supplement to Prospectus

Dated September 30, 2002

The date of this supplement is September 30, 2003

Our Current Report on Form 8-K/A relating to the acquisition of Brience, Inc. by TSI Telecommunication Network Services Inc. on July 23, 2003 pursuant to a merger is attached as Annex A to this prospectus supplement. This prospectus supplement relates to the offering for resale from time to time by a selling noteholder of an aggregate principal amount of $30,000,000 of our 12³/₄% Senior Subordinated Notes due 2009.

The purchase of our 12³/₄% Senior Subordinated Notes due 2009 involves a high degree of risk. See “Risk Factors” of the prospectus for a discussion of factors that you should carefully consider before purchasing the notes offered by the prospectus and all prospectus supplements to the prospectus.

Neither the Securities Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if the prospectus or this prospectus supplement is truthful or complete. Any representation to the contrary is a criminal offense.

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Annex A

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SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 8-K/A

CURRENT REPORT

(Amendment No. 1)

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of report (Date of earliest event reported): September 30, 2003

TSI TELECOMMUNICATION HOLDINGS, LLC TSI TELECOMMUNICATION SERVICES INC.

(EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

201 N. Franklin Street, Suite 700

Tampa, Florida 33602

(Address of Principal Executive Offices, including Zip Code)

(813) 273-3000

(Registrant’s Telephone Number, Including Area Code)

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Item 5. Other Events and Regulation FD Disclosure.

As initially reported on the Registrants’ current report on Form 8-K filed on August 29, 2003, effective July 23, 2003, pursuant to an Agreement and Plan of Merger dated as of July 15, 2003 (the “Merger Agreement”), among TSI Telecommunication Network Services Inc. (“TSI Networks”), TSI Brience, LLC (“Merger Sub”), Brience, Inc. (“Brience”) and certain holders of Series C Preferred Stock, par value $.01 per share, of Brience, Brience was merged with and into Merger Sub with Merger Sub continuing as the surviving entity and a wholly owned subsidiary of TSI Networks (the “Merger”). At the time of the Merger, GTCR Fund VII, L.P. and GTCR Co-Invest, L.P. collectively were majority owners of Brience and owned approximately 64% of the outstanding common stock of Brience on a fully diluted basis. GTCR Fund VII, L.P. and GTCR Co-Invest, L.P. collectively own approximately 52% of the outstanding common units of TSI Telecommunication Holdings, LLC (the “Ultimate Parent”) and their affiliate, GTCR Fund VII/A, L.P., owns approximately 26% of the common units of the Ultimate Parent. GTCR Fund VII, L.P., GTCR Fund VII/A, L.P. and GTCR Co-Invest, L.P. are private investment funds affiliated with GTCR Golder Rauner LLC (“GTCR”). Since GTCR had a controlling interest in both Brience and the Ultimate Parent at the time of the Merger, the transaction was accounted for as a combination of entities under common control, similar to a pooling of interests, whereby the assets and liabilities of Brience were combined at their historical amounts as of February 14, 2002, the date that GTCR had control of both entities. The Registrants intend to file restated audited consolidated financial statements for the period from February 14, 2002 to December 31, 2002 on the appropriate form reflecting these combined financial results. The inclusion of Brience’s historical financial results in the restated audited consolidated financial statements of the Registrants for the period from February 14, 2002 to December 31, 2002 could have a significant effect on the Registrants’ historical financial results. Prior to the Merger, Brience experienced significant losses and for its fiscal year ended April 30, 2003, its unaudited net income (loss) was approximately $(11.8) million. However, Brience’s operations at the time of the Merger were substantially less significant than they were historically because of reduced operations, product developments, personnel and geographic territories.

The Registrants do not expect to be able to file the audited financial statements of Brience as of and for the twelve months ended April 30, 2003 required by Rule 3-05 of Regulation S-X by October 5, 2003 and may not be able to file them at all because the Registrants have not been able to obtain accounting records related to Brience’s discontinued foreign subsidiaries. A no-action request has been submitted to the Office of the Chief Accountant on behalf of the Registrants with respect to this matter.

Item 7. Financial Statements, Pro Forma Financial Information and Exhibits.

(b) Pro forma financial information.

The unaudited pro forma condensed consolidated statements of operations for the year ended December 31, 2002 and for the six months ended June 30, 2003, and the unaudited pro forma condensed consolidated balance sheet as of June 30, 2003 are presented in Exhibit 7.1 attached hereto. The unaudited pro forma condensed consolidated statements of operations for the year ended December 31, 2002 and the six months ended June 30, 2003 give pro forma effect to the Merger as if it had occurred at the beginning of each period presented. The unaudited pro forma condensed consolidated statement of operations for the year ended December 31, 2002 also gives effect to the acquisition of TSI Telecommunication Services Inc. (“TSI”) on February 14, 2002 by GTCR, certain co-investors and members of management and certain related financing transactions as if they had occurred on January 1, 2002. The unaudited pro forma condensed consolidated balance sheet as of June 30, 2003 gives effect to the Merger as if it had occurred on June 30, 2003.

(c) Exhibits

7.1     Unaudited Pro Forma Condensed Consolidated Financial Statements

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SIGNATURES

According to the requirements of the Securities Exchange Act of 1934, each of the Registrants has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: September 30, 2003

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EXHIBIT INDEX

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EXHIBIT 7.1

UNAUDITED PRO FORMA CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

The following unaudited pro forma condensed consolidated statements of operations for the year ended December 31, 2002 and the six months ended June 30, 2003, and the unaudited pro forma condensed consolidated balance sheet as of June 30, 2003, are based on the historical financial statements of TSI Telecommunication Holdings, LLC (“TSI LLC”) and Brience, Inc. (“Brience”) and give effect to the acquisition of Brience pursuant to a merger of Brience with and into TSI Brience, LLC, a wholly owned subsidiary of TSI Telecommunication Network Services Inc., with TSI Brience, LLC continuing as the surviving entity (the “Merger”) using the method of accounting similar to a pooling of interests. The unaudited pro forma condensed consolidated statement of operations for the year ended December 31, 2002 also gives effect to the acquisition of TSI Telecommunication Services Inc. (“TSI”) on February 14, 2002 by GTCR, certain co-investors and members of management and certain related financing transactions which was accounted for as a purchase business combination. The unaudited pro forma condensed consolidated financial statements should be read in conjunction with accompanying notes.

At the time of the Merger, GTCR Fund VII, L.P. and GTCR Co-Invest, L.P. collectively were majority owners of Brience and owned approximately 64% of the outstanding common stock of Brience on a fully diluted basis. GTCR Fund VII, L.P. and GTCR Co-Invest, L.P. collectively own approximately 52% of the outstanding common units of TSI LLC and their affiliate, GTCR Fund VII/A, L.P., owns approximately 26% of the common units of TSI LLC. Since GTCR had a controlling interest in both Brience and TSI LLC at the time of the Merger, the transaction was accounted for as a combination of entities under common control, similar to a pooling of interests, whereby the assets and liabilities of Brience were combined at their historical amounts as of the date that GTCR had control of both entities (February 14, 2002). For historical accounting purposes, Brience will only be combined for the periods under common control by GTCR. For the minority interest of Brience not owned by GTCR affiliates at the time of the combination, purchase accounting is to be applied. However, the effects of the fair value adjustments relating to this purchase accounting are expected to be insignificant, and therefore, are assumed to be zero for purposes of these the pro forma financial statements.

The unaudited pro forma condensed consolidated statements of operations for the year ended December 31, 2002 and the six months ended June 30, 2003, give pro forma effect to the Merger as if it had occurred at the beginning of each period presented. The unaudited pro forma condensed consolidated balance sheet as of June 30, 2003 gives effect to the Merger as if it had occurred on June 30, 2003. The unaudited pro forma condensed consolidated statement of operations for the year ended December 31, 2002 also gives effect to the acquisition of TSI Telecommunication Services Inc. on February 14, 2002 by GTCR, certain co-investors and members of management and certain related financing transactions as if they had occurred on January 1, 2002. The acquisition of TSI was accounted for as a purchase business combination (for further information, refer to the consolidated financial statements and footnotes thereto included in TSI LLC’s registration statement on Form S-4, number 333-88168-01, dated May 24, 2002).

The unaudited pro forma condensed consolidated financial statements are presented for illustrative purposes only and may not be indicative of the results that would have been obtained had the transaction actually occurred during the periods or as of the date presented, nor are they necessarily indicative of the future consolidated results of operations or the financial position of the combined enterprise. The unaudited pro forma condensed consolidated financial statements should be read in conjunction with the historical consolidated financial statements and accompanying notes contained in TSI LLC’s Form 10-K for the year ended December 31, 2002, and TSI LLC’s Quarterly Report on Form 10-Q for its quarter ended June 30, 2003 and TSI LLC’s registration statement on Form S-4 dated May 24, 2002.

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INDEX TO UNAUDITED PRO FORMA CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

TSI TELECOMMUNICATION HOLDINGS, LLC

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TSI TELECOMMUNICATION HOLDINGS, LLC

UNAUDITED PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS

(DOLLARS IN THOUSANDS)

See notes to unaudited pro forma condensed consolidated financial statements.

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TSI TELECOMMUNICATION HOLDINGS, LLC

UNAUDITED PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS

(DOLLARS IN THOUSANDS)

See notes to unaudited pro forma condensed consolidated financial statements.

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TSI TELECOMMUNICATION HOLDINGS, LLC

UNAUDITED PRO FORMA CONDENSED CONSOLIDATED BALANCE SHEET

(DOLLARS IN THOUSANDS)

See notes to unaudited pro forma condensed consolidated financial statements.

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TSI TELECOMMUNICATION HOLDINGS, LLC

NOTES TO UNAUDITED PRO FORMA CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(DOLLARS IN THOUSANDS)

1. Pro Forma Adjustments

(a) To reflect the following adjustments to cost of operations:

(1) Costs historically incurred by TSI to obtain mainframe computing services and distributed processing computing services from Verizon.

(2) To reflect the costs set forth in a new multi-year contract for distributed processing computing services which we entered into with an affiliate of Verizon concurrently with the acquisition and a new multi-year contract for mainframe computing services which we have entered into with Lockheed Martin Global Telecommunications.

(b) To reflect the management fee to be paid annually to GTCR Golder Rauner, LLC under its professional services agreement with us.

(c) To reflect the additional amortization and depreciation resulting from the purchase accounting related to the acquisition of TSI. For purposes of the unaudited pro forma consolidated financial statements, the property and equipment is being depreciated over its estimated remaining economic lives of seven years. The identifiable intangible assets with definite lives are being amortized over their estimated economic lives, which range from four to 19 years.

(d) To exclude interest income earned on note receivable from affiliate since this note was repaid by Verizon prior to closing and the proceeds distributed to Verizon at the closing.

(e) To reflect the adjustments to interest expense as a result of (i) the acquisition of TSI on February 14, 2002 by GTCR, certain co-investors and members of management and certain related financing transactions (the “Transactions”), assuming a LIBOR rate of 2.09%, (ii) the amortization of deferred financing costs associated with obtaining the transaction debt financing, using the interest method (iii) the amortization of debt discount, using the interest method and (iv) commitment fees on the revolving credit facility assuming no amounts outstanding:

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The actual interest rates on indebtedness incurred to consummate the Transactions could vary from those used to compute the above adjustment of interest expense due to the variable rate debt. The effect on pre-tax income of a ¹/₈ percent variance in these rates would be approximately $369 over the terms of the debt.

(f) To reflect the tax effect of the pro forma adjustments, using a 39.1% effective rate.

(g) To reflect 10% preferred dividends to holders of Class B Preferred Units.

(h) In connection with the Merger, TSI Telecommunication Holdings, LLC estimates that it will incur approximately $743 for direct merger costs, consisting primarily of legal fees, accounting fees and severance costs. Direct merger costs will be charged to operations in the period in which the Merger is consummated. This estimate is preliminary and is subject to change. The unaudited pro forma condensed consolidated balance sheet gives effect to the direct merger costs as if they were incurred on June 30, 2003; the unaudited pro forma condensed consolidated statements of operations do not reflect such costs since they are non-recurring.

(i) Adjustment reflects the cancellation of all preferred and common stock of Brience at the time of the Merger and the common units of TSI Telecommunication Holdings, LLC issued in connection with the Merger.

(j) TSI is in the process of determining the impact of Brience’s tax NOL carryforwards. No adjustments have been made to the unaudited pro forma condensed consolidated financial statements since a comprehensive analysis relating to the use of these NOLs has not been completed at this time.

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