Exhibit 10.19.2 AMENDMENT NO. 1 TO ROAMING ADMINISTRATION SERVICE AGREEMENT AMENDMENT NO. 1 TO ROAMING ADMINISTRATION SERVICE AGREEMENT ("Amendment") made this 13th day of November, 2000, by and between AT&T Wireless Services, Inc. ("AWS"), a Delaware corporation, with its principal place of business at 7277 164th Avenue NE, Redmond, Washington 98052, and TeleCorp PCS, Inc. ("TeleCorp"), a Delaware corporation, with its principal place of business at 1010 N. Glebe Road, Arlington, Virginia 22201. Certain capitalized terms used herein and not otherwise defined have the meaning assigned to such term in the Roaming Agreement (defined below). WHEREAS, AWS and TeleCorp are party to that certain Roaming Administration Services Agreement, dated as of July 17, 1998 (the "Roaming Agreement"), pursuant to which TeleCorp receives certain benefits under Intercarrier Roaming Services Agreements between AWS and other providers of wireless telecommunications service. WHEREAS, TeleCorp has entered into an Agreement and Plan of Reorganization and Contribution with Tritel, Inc. and AWS, dated as of February 28, 2000, as amended (the "Merger Agreement") pursuant to which, among other things, TeleCorp will acquire rights to acquire certain PCS licenses covering portions of Wisconsin, Iowa and Michigan as more fully described in the Contribution (as such term is defined in the Merger Agreement) and the Merger Agreement; WHEREAS, TeleCorp and certain of its affiliates have entered into an Asset Exchange Agreement and AWS, dated as of February 28, 2000 (the "Asset Exchange Agreement") pursuant to which, among other things, TeleCorp will exchange certain PCS licenses covering portions of Massachusetts and New Hampshire for PCS licenses or rights to acquire PCS licenses covering portions of Iowa, Wisconsin and Michigan as more fully described in the Asset Exchange Agreement; WHEREAS, the Company and AWS entered into a letter agreement dated February 28, 2000 (the "Letter Agreement"), pursuant to which, among other things, AWS agreed that the Company may acquire PCS Licenses covering all or any portion of the Des Moines-Quad Cities MTA as more fully described in the Letter Agreement; and WHEREAS, pursuant to the Letter Agreement, AWS agreed to expand or contract, as applicable, the territory to which the Roaming Agreement applies to include (or exclude, as applicable) the territories covered by the licenses transferred to (or by) the Company or an Affiliate (i) pursuant to the Asset Exchange Agreement, (ii) pursuant to the Contribution; and (iii) solely upon the closing of an acquisition of a PCS license covering the Des Moines-Quad Cities MTA pursuant to the Letter Agreement (in addition to those acquired under the Asset Exchange Agreement), the portion of the Des Moines-Quad Cities MTA covered by such License. NOW THEREFORE, in consideration of the mutual promises and covenants herein contained and for other good and valuable consideration the receipt and sufficiency of which is hereby acknowledged, the parties hereby agree as follows: 1. Amendment to Territories. Exhibit A to the Roaming Agreement is hereby ------------------------ deleted in its entirety and replaced with Exhibit A attached. 2. Amendment to "Other Wireless Carrier's Exhibit." Exhibit A-l to the Roaming ----------------------------------------------- Agreement is hereby deleted in its entirety and replaced with Exhibit A-1 attached. 3. Severability of Provisions. Any provision of this Amendment which is -------------------------- prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such prohibition or unenforceability without invalidating the remaining provisions hereof or affecting the validity or remaining provisions hereof or affecting the validity or enforceability of such provision in any other jurisdiction. 4. Agreement to Remain in Full Force and Effect. This Amendment shall be -------------------------------------------- deemed to be an amendment to the Roaming Agreement. All references to the Roaming Agreement in any other agreements or documents shall on and after the date hereof be deemed to refer to the Roaming Agreement as amended hereby. Except as amended hereby, the Roaming Agreement shall remain in full force and effect and is hereby ratified, adopted and confirmed in all respects. 5. Heading. The headings in this Amendment are inserted for convenience and ------- identification only and are not intended to describe, interpret, define or limit the scope, extent or intent of this Amendment or any provision thereof. 6. Counterparts. This Amendment may be executed in counterparts, each of which ------------ shall be deemed an original, but all of which together shall constitute one and the same instrument. 7. Governing Law. This Amendment shall be construed in accordance with the ------------- laws of the State of Washington without reference to the choice of law principles, except as subject to the United States Arbitration Act and the Federal Communications Act, each as amended. [signature page follows] Executed as of the date first written above. AT&T WIRELESS SERVICES, INC. By /s/ Joseph Stumpf ------------------------------- Name: Joseph Stumpf ------------------------------- Its: Vice President-Acquisitions and Development -------------------------------------------- TELECORP PCS, INC. By /s/ Thomas H. Sullivan ------------------------------- Name: Thomas H. Sullivan ------------------------------- Its: President, Treasurer and Secretary -------------------------------------------- EXHIBIT A PCS Systems constructed or to be constructed in the TeleCorp Territory (as such term is defined in that certain Stockholder's Agreement, dated as of November 13, 2000 ("Stockholder's Agreement"), among TeleCorp, AT&T Wireless and the other parties signatory thereto) in accordance with the terms of the Stockholder's Agreement, as such agreement may be amended from time to time. Exhibit A-1 Other Wireless Carriers Effective 10/30/00 CARRIER_NAME ABIATAR SA ADVANTAGE SYSTEMS AERIAL COMMUNICATIONS AIRCELL AIRTOUCH CELLULAR NEW VECTOR AIRTOUCH GREAT LAKES KINI FRONTIER CELL OF ALABAMA ALLTEL AMERICAN CELLULAR WIRELESS AMERICAN MOBILE SATELLITE AMERITECH APPALACHIAN CELLULAR ARCTIC SLOPE CELLULAR AT&T WIRELESS SVCS ATL-BRAZIL ATT MOBILITY AWZ CELLULAR BAJA CELLULAR BELL ATLANTIC MOBILE BELL MOBILITY CELLULAR BELLSOUTH CELLULAR BELLSOUTH MOBILITY CELLULAR ONE OF INDIANAPOLIS TELCEL VENEZUELA BELLSOUTH INTERNATIONAL BELLSOUTH ECUADOR BSC PANAMA BCP TELECOMMUNICATIONS BELLSOUTH CHILE BELLSOUTH NICARAGUA BERMUDA DIGITAL BLUEGRASS CELLULAR BRAZOS CELLULAR BTC MOBILITY C-1 COLUMBIA TN C-1 EAST CENTRAL ILLINOIS C-1 GREAT LAKES OF IOWA C-1 MUSTANG C-1 NE COLORADO C-1 SW FLORIDA CABLE & WIRELESS-CARIBBEAN CABLE AND WIRELESS HKT CABLE AND WIRELESS-JAMAICA CAL-NORTH CELLULAR CANTEL CAROLINA WEST CC CELLULAR CCPR CEDETEL CELCARIBE S.A. CELLOM CELLCOM ISRAEL CELLULAR CONNECTION CELLULAR MOBILE SYSTEMS CELLULAR ONE AMARILLO CELLULAR SOUTH CELLULAR THREE CELLULAR XL ASSOC, L.P. CELLULINK CELUMOVIL S.A. ALLEGAN CELLULAR CENTENNIAL CELLULAR CORP CENTRAL WIRELESS CENTURYTEL CFW CELLULAR CHARITON VALLEY WIRELESS CIS CITIZENS MOHAVE CELL CJD CELLULAR COASTEL COMMUNICATIONS COCELCO COMCAST CELLULAR COMCEL COMMNET CELLULAR INC CORDOVA WIRELESS CORRCOMM CROSS COUNTRY CELLULAR CTC STARTEL CTE PERSONAL EL SALVADOR CTI MOVIL-ARGENTINA DIGITAL CELLULAR - TX C-1 DOBSON SANTA CRUZ CELL. DCS OF KS/MO C-1 NW OKLAHOMA DOBSON CELLULAR C-1 FREDERICK SYGNET COMM INC. DOUGLAS TELECOMMUNICATIONS EXPRESS TELECOM-PHILLIPINES FARMERS CELLULAR FIRST CELLULAR OF S. ILLINOIS FIVE STAR WIRELESS GAIA, INC GOLDEN STATE CELLULAR GSN GTE MOVILNET GTE WIN 4 GTE WIRELESS GUAM TELEPHONE AUTHORITY HARGRAY WIRELESS HAWAIIAN WIRELESS HIGHLAND CELLULAR HOUSTON CELL. ILLINOIS VALLEY CELLULAR INDUS IUSACELL KENTUCKY CELLULAR LARSEN CELLULAR LEACO MACTEL CELLULAR SYSTEM MAINE CELLULAR METACOMM CELLULAR MID-MISSOURI CELLULAR MID-SOUTH CELLULAR MID-TEX CELLULAR MIDWEST WIRELESS MINIPHONE MINNESOTA SOUTHERN WIRELESS MOBIKOM MOBILETEL MOCELL MOVICOM MOVITEL NORTHWEST MISSOURI CELLULAR NYNEX OCCEL OKLAHOMA W. CELLULAR PACE COMMUNICATIONS PC MANAGEMENT, INC. PETROCOM PINE CELLULAR PIONEER/ENID CELLULAR PLATEAU WIRELESS POKA LAMBRO TELECOMMUNICATIONS PORTATEL POWERTEL PRICE COMMUNICATIONS PRIMECO PTSI CELLULAR INTERCEL PUBLIC SERVICE PUERTO RICO CELLULAR QUEBEC TELEPHONE CELL QUICK CALL CELLULAR RADIOFONE RAMCELL OF OREGON RFB CELLULAR RCC HOLDINGS INC RURAL CELLULAR SAGE BRUSH CELLULAR SE INDIANA CELLULAR SETEL SINGTEL MOBILE SMITH BAGLEY SOUTH CAROLINA CELLULAR SPRINT PCS STAR CELLULAR STERLING CELLULAR SUSSEX CELLULAR CHICAGO CELL 1 SNET CELLULAR NEW YORK/SWB SWB SYRACUSE/UTICA BOSTON CELL ONE C-1 WASH/BALT TELCEL TEL-CEL--ST MARTIN TELE2000 TELECEL BOLIVIA TELECEL PARAGUAY TELECOM MOBILE TELECOM PERSONAL S.A. TELEFONICA DE EL SALVADOR TELEFONICA DEL PERU TELEMOVIL EL SALVADOR TELESP - BRAZIL TELET- BRAZIL TEXAS CELLULAR TRITON U.S. CELLULAR U.S. UNWIRED UBET WIRELESS UNIFON-ARGENTINA UNION TELEPHONE UNITEL INC. UNKNOWN CARRIER US WEST PCS USA TEL VALLEY TELECOMMUNICATIONS VIRGINIA 10 LP VIRGINIA CELLULAR VITELCOM WEST CENTRAL WIRELESS VOICESTREAM WIRELESS AMERICAN RURAL CELLULAR WESTERN WIRELESS WESTEX CELL WIRELESSNORTH PCS X-CELL CELLULAR XIT CELLULAR YORKVILLE TELEPHONE