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

FORM 8-K

CURRENT REPORT
PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported):   January 19, 2010

ADTRAN, Inc.
(Exact name of registrant as specified in its charter)

Delaware	0-24612	63-0918200	
(State of Incorporation)	(Commission file number)	(I.R.S. Employer
Identification Number)	

901 Explorer Boulevard, Huntsville, Alabama 35806-2807 
 (Address of principal executive offices, including zip code)

(256) 963-8000
(Registrant's telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions ( see General Instruction A.2. below):
⃞ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
⃞ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
⃞ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
⃞ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 2.02.  Results of Operations and Financial Condition.
On January 19, 2010, ADTRAN, Inc. announced its financial results for the fiscal quarter ended December 31, 2009 and certain other information.
ADTRAN also announced that its Board of Directors declared a quarterly cash dividend of $0.09 per common share to be paid to holders of record at the close of business on February 4, 2010.  The ex-dividend date is February 2, 2010 and the payment date is February 18, 2010.
A copy of ADTRAN's press release announcing such financial results and other information is attached as Exhibit 99.1 hereto and incorporated by reference herein.
In addition, ADTRAN has posted supplemental information regarding revenues by product category, subcategory and segment for the fiscal quarter ended December 31, 2009 on the Investor Relations page of its website, www.adtran.com.  A copy of the supplemental information is attached as Exhibit 99.2 hereto and incorporated by reference herein.

Item 9.01.  Financial Statements and Exhibits.

              (c)  Exhibits.

              The following exhibits are furnished as part of this Current Report on Form 8-K.

Exhibit Number	 	Description	
		 	
99.1		Press Release dated January 19, 2010.	
		 	
99.2		Revenues by product and segment classification	

SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized on January 19, 2010.

 	ADTRAN, Inc.	
	(Registrant)	
	 	
	By: /s/ James E. Matthews	
	James E. Matthews	
	Senior Vice President – Finance,	
	Chief Financial Officer, Treasurer,	
	Secretary and Director	

EXHIBIT INDEX

Exhibit Number	 	Description	
		 	
99.1		Press Release dated January 19, 2010.	
		 	
99.2		Revenues by product and segment classification	

Exhibit 99.1
ADTRAN, Inc. Reports Results for Fourth Quarter 2009 and Declares Quarterly Cash Dividend
HUNTSVILLE, Ala.--(BUSINESS WIRE)--January 19, 2010--ADTRAN, Inc. (NASDAQ:ADTN) reported results for the fourth quarter of 2009. Sales increased 11% to $124,231,000 for the quarter, compared to $112,413,000 for the fourth quarter of 2008. Operating income increased 22% to $26,236,000 for the quarter, compared to $21,512,000 for the fourth quarter of 2008. Net income was $18,615,000 for the quarter, compared to $16,709,000 for the fourth quarter of 2008. Earnings per share, assuming dilution, were $0.29 for the quarter, compared to $0.27 for the fourth quarter of 2008.
ADTRAN Chief Executive Officer Tom Stanton stated, “In the fourth quarter, our growth categories demonstrated a strong performance, achieving a 42% year over year revenue increase. Internetworking revenues achieved a record revenue level growing an impressive 46% over the prior year. Broadband Access revenues grew 46% as we continued to see increasing acceptance of our Carrier Ethernet and Broadband services platforms. Optical Access revenues showed continued strength growing 30% as carriers increased investment in wireless bandwidth upgrades. We believe increasing momentum experienced by these categories positions our company well for growth in 2010.”
The Company also reported that stock-based compensation expense for the fourth quarter of 2009 reduced diluted earnings per share by $0.03 compared to $0.02 for the fourth quarter of 2008.
The Company also announced that its Board of Directors declared a cash dividend for the fourth quarter of 2009. The quarterly cash dividend is $0.09 per common share to be paid to holders of record at the close of business on February 4, 2010. The ex-dividend date is February 2, 2010 and the payment date is February 18, 2010.
The Company also confirmed that its fourth quarter conference call will be held Wednesday, January 20, 2010 at 9:30 a.m. Central Time. This conference call will be web cast live through StreetEvents.com. To listen, simply visit the Investor Relations site at http://www.adtran.com or http://streetevents.com approximately 10 minutes prior to the start of the call and click on the conference call link provided.
An online replay of the conference call will be available for seven days at http://streetevents.com . In addition, an online replay of the conference call, as well as the text of the Company's earnings release, will be available on the Investor Relations site at http://www.adtran.com for at least 12 months following the call.
ADTRAN, Inc. is a leading global provider of networking and communications equipment, with a portfolio of more than 1,700 solutions for use in the last mile of today's telecommunications networks. Widely deployed by carriers and enterprises alike, ADTRAN solutions enable voice, data, video, and Internet communications across copper, fiber, and wireless network infrastructures. ADTRAN solutions are currently in use by every major U.S. service provider and many global ones, as well as by thousands of public, private and governmental organizations worldwide.
For more information, contact the company at 800 9ADTRAN (800 923-8726) or via email at info@adtran.com . On the Web, visit www.adtran.com .

This press release contains forward-looking statements which reflect management’s best judgment based on factors currently known. However, these statements involve risks and uncertainties, including the successful development and market acceptance of new products, the degree of competition in the market for such products, the product and channel mix, component costs, manufacturing efficiencies, and other risks detailed in our annual report on Form 10-K for the year ended December 31, 2008 and Form 10-Q for the quarter ended September 30, 2009. These risks and uncertainties could cause actual results to differ materially from those in the forward-looking statements included in this press release.

 
Condensed Balance Sheet
Unaudited
(In thousands)	
	 		 		
		December 31,
2009		December 31,
2008	
Assets					
Cash and cash equivalents		$	24,135		$	41,909	
Short-term investments			172,469			96,277	
Accounts receivable, net			68,044			52,749	
Other receivables			4,097			2,896	
Inventory, net			45,674			47,406	
Prepaid expenses			2,795			2,974	
Deferred tax assets, net		 	8,603		 	8,653	
Total current assets			325,817			252,864	
				 	
Property, plant, and equipment, net			74,309			75,487	
Deferred tax assets, net			-			3,920	
Other assets			2,168			103	
Long-term investments		 	162,169		 	141,241	
				 	
Total assets		$	564,463		$	473,615	
				 	
Liabilities and Stockholders' Equity					
Accounts payable		$	25,782		$	20,313	
Unearned revenue			7,138			6,141	
Accrued expenses			4,202			3,536	
Accrued wages and benefits			7,634			9,868	
Income tax payable, net		 	3,017		 	266	
Total current liabilities			47,773			40,124	
				 	
Deferred tax liabilities, net			5,035			-	
Other non-current liabilities			11,390			9,422	
Bonds payable		 	47,750		 	48,250	
Total liabilities			111,948			97,796	
				 	
Stockholders' equity		 	452,515		 	375,819	
				 	
Total liabilities and stockholders' equity		$	564,463		$	473,615	

Consolidated Statements of Income
(In thousands, except per share data)
Unaudited	
 		 		 		
			Three Months Ended		Twelve Months Ended	
			December 31,		December 31,	
			 	2009	 	 	 	2008	 		 	2009	 	 	 	2008	 	
									 	
Sales		$	124,231			$	112,413			$	484,185			$	500,676		
Cost of Sales		 	50,876	 		 	44,825	 		 	197,223	 		 	201,771	 	
									 	
Gross Profit			73,355				67,588				286,962				298,905		
									 	
Selling, general, and administrative expenses			25,863				25,713				99,446				103,286		
Research and development expenses		 	21,256	 		 	20,363	 		 	83,285	 		 	81,819	 	
									 	
Operating income			26,236				21,512				104,231				113,800		
									 	
Interest and dividend income			1,660				2,019				6,933				8,708		
Interest expense			(605	)			(609	)			(2,430	)			(2,514	)	
Net realized investment gain (loss)			146				(2,258	)			(1,297	)			(2,409	)	
Other income (expense), net		 	59	 		 	(21	)		 	131	 		 	688	 	
									 	
Income before provision for income taxes			27,496				20,643				107,568				118,273		
									 	
Provision for income taxes		 	(8,881	)		 	(3,934	)		 	(33,347	)		 	(39,692	)	
									 	
Net Income		$	18,615	 		$	16,709	 		$	74,221	 		$	78,581	 	
									 	
Weighted average shares outstanding									
	Basic			62,586				62,283				62,459				63,549		
	Diluted (1)			63,642				62,709				63,356				64,408		
									 	
Earnings per common share									
	Basic		$	0.30			$	0.27			$	1.19			$	1.24		
	Diluted (1)		$	0.29			$	0.27			$	1.17			$	1.22		
									 	
(1) Assumes exercise of dilutive stock options calculated under the treasury stock method.			

Supplemental Information
Stock Based Compensation Expense
(In thousands)	
	 		 		
		Three months ended		Twelve months ended	
		December 31,		December 31,	
		 	2009	 	 	 	2008	 		 	2009	 	 	 	2008	 	
								 	
Stock-based compensation expense included in cost of sales		$	72	 		$	16	 		$	268	 		$	253	 	
								 	
Selling, general, and administrative expense			879				508				3,039				3,263		
Research and development expense		 	1,041	 		 	813	 		 	3,680	 		 	3,822	 	
								 	
Stock-based compensation expense included in operating expenses		 	1,920	 		 	1,321	 		 	6,719	 		 	7,085	 	
								 	
Total stock-based compensation expense			1,992				1,337				6,987				7,338		
Tax benefit for expense associated with non-qualified options		 	(181	)		 	(69	)		 	(634	)		 	(669	)	
								 	
Total stock-based compensation expense, net of tax		$	1,811	 		$	1,268	 		$	6,353	 		$	6,669	 	

 
Consolidated Statements of Cash Flow
Unaudited
(In thousands)	
	 		
		Twelve Months Ended	
		December 31,	
		 	2009	 	 	 	2008	 	
Cash flows from operating activities:					
Net income		$	74,221			$	78,581		
Adjustments to reconcile net income to net cash provided by operating activities:					
Depreciation and amortization			10,084				9,891		
Amortization of net premium of available-for-sale investments			3,686				2,101		
Net realized loss on long-term investments			1,297				2,409		
Loss (gain) on disposal of property, plant, and equipment			(31	)			83		
Stock-based compensation expense			6,987				7,338		
Deferred income taxes			(1,024	)			(903	)	
Tax benefit from stock option exercises			1,549				981		
Excess tax benefit from stock-based compensation arrangements			(998	)			(619	)	
Change in operating assets and liabilities:					
Accounts receivable, net			(15,143	)			17,918		
Other receivables			(1,195	)			189		
Inventory			1,732				1,140		
Prepaid expenses and other assets			(489	)			(549	)	
Accounts payable			5,442				(1,887	)	
Accrued expenses and other liabilities			1,010				93		
Income tax payable, net		 	3,027	 		 	(951	)	
Net cash provided by operating activities			90,155				115,815		
				 	
Cash flows from investing activities:					
Purchases of property, plant, and equipment			(8,740	)			(9,492	)	
Proceeds from sales and maturities of available-for-sale investments			186,193				248,688		
Purchases of available-for-sale investments			(262,067	)			(242,791	)	
Acquisition of business, net of cash acquired		 	(1,370	)		 	-	 	
Net cash used in investing activities			(85,984	)			(3,595	)	
				 	
Cash flows from financing activities:					
Proceeds from exercises of stock options			13,471				3,691		
Purchases of treasury stock			(15,896	)			(63,569	)	
Dividend payments			(22,486	)			(22,919	)	
Payments on long-term debt			(500	)			(250	)	
Excess tax benefits from stock-based compensation arrangements		 	998	 		 	619	 	
Net cash used in financing activities			(24,413	)			(82,428	)	
				 	
Net increase (decrease) in cash and cash equivalents			(20,242	)			29,792		
Effect of exchange rate changes			2,468				(1,824	)	
Cash and cash equivalents, beginning of period		 	41,909	 		 	13,941	 	
				 	
Cash and cash equivalents, end of period		$	24,135	 		$	41,909	 	

CONTACT:
ADTRAN, Inc.
Jim Matthews, 256-963-8775
Senior Vice President/CFO
or
INVESTOR SERVICES/ASSISTANCE:
Gayle Ellis, 256-963-8220

Exhibit 99.2

Product and Segment Revenues
(In thousands)

	Three Months Ended	 	Twelve Months Ended	
	December 31,		December 31,	
	2009	 	2008		2009	 	2008	
Product revenues:								
Loop Access	$	39,437			$	47,519			$	168,019			$	204,874		
Carrier Systems		56,911				43,459				215,715				206,225		
Business Networking	 	27,883	 		 	21,435	 		 	100,451	 		 	89,577	 	
Total	$	124,231	 		$	112,413	 		$	484,185	 		$	500,676	 	
							 	
Subcategories included in the above:								
Broadband Access (included in Carrier Systems)	$	28,342			$	19,466			$	111,470			$	102,335		
Optical Access (included in Carrier Systems)		16,336				12,588				60,596				53,844		
Internetworking (Netvanta & Multi-service Access
Gateways) (included in Business Networking)	 	22,961	 		 	15,707	 		 	79,979	 		 	65,791	 	
Total Growth Products	 	67,639	 		 	47,761	 		 	252,045	 		 	221,970	 	
Percentage of Total Revenue		54%	 			42%	 			52%	 			44%	 	
							 	
HDSL (does not include T1) (included in Loop
Access)		35,396				41,710				150,276				179,814		
Other Products	 	21,196	 		 	22,942	 		 	81,864	 		 	98,892	 	
Total Traditional Products	 	56,592	 		 	64,652	 		 	232,140	 		 	278,706	 	
Percentage of Total Revenue		46%	 			58%	 			48%	 			56%	 	
							 	
Total	$	124,231	 		$	112,413	 		$	484,185	 		$	500,676	 	
							 	
Segment Revenues:								
Carrier Networks	$	93,856			$	86,762			$	371,349			$	392,219		
Enterprise Networks	 	30,375	 		 	25,651	 		 	112,836	 		 	108,457	 	
Total	$	124,231	 		$	112,413	 		$	484,185	 		$	500,676	 	
							 	
Sales by Geographic Region:								
United States	$	116,496			$	104,345			$	456,402			$	470,563		
International	 	7,735	 		 	8,068	 		 	27,783	 		 	30,113	 	
Total	$	124,231	 		$	112,413	 		$	484,185	 		$	500,676