<ARTICLE>                     5
       
<LEGEND>
This schedule contains summary financial information extracted from the 
condensed statement of income for the year ended December 31, 1997 and the
condensed balance sheet as of December 31, 1997 and is qualifed in its entirety
by reference to such financial statements.
</LEGEND>
<CIK>                           0000926282                     
<NAME>                          ADTRAN, Inc.
<MULTIPLIER>                    1
<CURRENCY>                      US Dollar
                             
<PERIOD-TYPE>                   12-MOS  
<FISCAL-YEAR-END>               Dec-31-1997
<PERIOD-START>                  Jan-01-1997
<PERIOD-END>                    Dec-31-1997
<EXCHANGE-RATE>                 1
<CASH>                          45,340,961
<SECURITIES>                    37,833,240
<RECEIVABLES>                    1,250,350
<ALLOWANCES>                      (893,389)
<INVENTORY>                      39,369,103
<CURRENT-ASSETS>                167,400,078
<PP&E>                           85,701,404
<DEPRECIATION>                  (20,900,272)
<TOTAL-ASSETS>                  282,401,210
<CURRENT-LIABILITIES>            18,216,500
<BONDS>                          50,000,000
<PREFERRED-MANDATORY>                     0
<PREFERRED>                               0
<COMMON>                            393,813
<OTHER-SE>                      212,037,075
<TOTAL-LIABILITY-AND-EQUITY>    282,401,210
<SALES>                         265,334,768
<TOTAL-REVENUES>                265,334,768
<CGS>                           130,253,531
<TOTAL-COSTS>                   130,253,531
<OTHER-EXPENSES>                 44,973,175
<LOSS-PROVISION>                          0
<INTEREST-EXPENSE>                1,838,814
<INCOME-PRETAX>                  62,826,828
<INCOME-TAX>                     22,617,556
<INCOME-CONTINUING>              40,209,272
<DISCONTINUED>                            0
<EXTRAORDINARY>                           0
<CHANGES>                                 0
<NET-INCOME>                     40,209,272
<EPS-PRIMARY>                          1.03
<EPS-DILUTED>                          1.02