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):   July 12, 2011

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 July 12, 2011, ADTRAN, Inc. announced its financial results for the fiscal quarter ended June 30, 2011 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 July 28, 2011.  The ex-dividend date is July 26, 2011 and the payment date is August 11, 2011.
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 June 30, 2011 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.	
	 	
	(d) Exhibits.	
	 	
	The following exhibits are furnished as part of this Current Report on Form 8-K.	

Exhibit Number	Description	
	 	
          99.1	Press Release dated July 12, 2011.	
	 	
          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 July 13, 2011.

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

EXHIBIT INDEX

Exhibit Number	 	Description	
		 	
99.1		Press Release dated July 12, 2011.	
		 	
99.2		Revenues by product and segment classification	

Exhibit 99.1
ADTRAN, Inc. Reports Record Results for Second Quarter 2011 and Declares Quarterly Cash Dividend
HUNTSVILLE, Ala.--(BUSINESS WIRE)--July 12, 2011--ADTRAN, Inc. (NASDAQ:ADTN) reported results for the second quarter of 2011. Sales increased 23% to an all time record level of $184,227,000 for the quarter, compared to $150,361,000 for the second quarter of 2010. Operating income increased 33% to an all time record level of $51,310,000 for the quarter compared to $38,617,000 for the second quarter of 2010. Net income increased 33% to $36,943,000 for the quarter, compared to $27,751,000 for the second quarter of 2010. Earnings per share, assuming dilution, increased 27% to $0.56 for the quarter, compared to $0.44 for the second quarter of 2010.
ADTRAN Chief Executive Officer Tom Stanton stated, “Our Company had an outstanding quarter reaching new highs on multiple fronts. The performance was led by our growth areas which combined grew 48% over the prior year, now representing 72% of our total company revenue. Moreover, every component of our growth areas, which include Broadband Access, Optical Access and Internetworking, individually attained new revenue highs. Broadband Access grew an impressive 71% over second quarter 2010, driven by the continued success of our Total Access 5000 and Fiber-to-the-Node platforms. Optical Access grew 36% and Internetworking grew 18%. These results allowed the company to achieve its fifth consecutive quarterly revenue record. As demonstrated by our results, we believe our highly differentiated solutions are exceptionally well positioned to take advantage of secular trends occurring in the markets we serve.”
The Company reported that stock-based compensation expense for the second quarter of 2011 reduced diluted earnings per share by $0.03 compared to a reduction of $0.03 for the second quarter of 2010.
The Company also announced that its Board of Directors declared a cash dividend for the second quarter of 2011. The quarterly cash dividend is $0.09 per common share to be paid to holders of record at the close of business on July 28, 2011. The ex-dividend date is July 26, 2011 and the payment date is August 11, 2011.
The Company confirmed that its second quarter conference call will be held Wednesday, July 13, 2011 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://www.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://www.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. ADTRAN’s products enable voice, data, video, and Internet communications across a variety of network infrastructures. ADTRAN solutions are currently in use by service providers, private enterprises, government organizations, and millions of individual users 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, 2010 and our quarterly report on Form 10Q for the quarter ended March 31, 2011. These risks and uncertainties could cause actual results to differ materially from those in the forward-looking statements included in this press release.

	 		 		
Condensed Consolidated Balance Sheet
Unaudited
(In thousands)	
				 	
		June 30,
2011		December 31,
2010	
Assets					
Cash and cash equivalents		$	23,787		$	31,677	
Short-term investments			138,690			157,479	
Accounts receivable, net			83,266			70,893	
Other receivables			10,425			3,962	
Income tax receivable, net			805			2,741	
Inventory			86,676			74,274	
Prepaid expenses			3,362			3,270	
Deferred tax assets, net		 	12,150		 	10,617	
Total current assets			359,161			354,913	
				 	
Property, plant and equipment, net			74,961			73,986	
Other assets			1,825			1,915	
Long-term investments		 	372,432		 	261,160	
				 	
Total assets		$	808,379		$	691,974	
				 	
Liabilities and Stockholders' Equity					
Accounts payable		$	38,488		$	22,785	
Unearned revenue			9,312			10,138	
Accrued expenses			5,957			4,913	
Accrued wages and benefits		 	10,551		 	12,125	
Total current liabilities			64,308			49,961	
				 	
Deferred tax liabilities, net			8,802			10,350	
Other non-current liabilities			15,086			11,841	
Bonds payable		 	46,500		 	47,500	
Total liabilities			134,696			119,652	
				 	
Stockholders' equity		 	673,683		 	572,322	
				 	
Total liabilities and stockholders' equity		$	808,379		$	691,974	

 		 				
Consolidated Statements of Income
Unaudited
(In thousands, except per share data)	
					 	
			Three Months Ended		Six Months Ended	
			June 30,		June 30,	
			2011	 	2010		2011	 	2010	
									 	
Sales		$	184,227			$	150,361			$	349,749			$	277,388		
Cost of sales		 	77,400	 		 	61,032	 		 	144,127	 		 	112,731	 	
									 	
Gross Profit			106,827				89,329				205,622				164,657		
									 	
Selling, general and administrative expenses			30,898				28,455				60,450				55,659		
Research and development expenses		 	24,619	 		 	22,257	 		 	48,256	 		 	45,036	 	
									 	
Operating Income			51,310				38,617				96,916				63,962		
									 	
Interest and dividend income			2,003				1,654				3,792				3,181		
Interest expense			(594	)			(595	)			(1,196	)			(1,198	)	
Net realized investment gain			3,372				2,464				6,139				4,656		
Other expense, net		 	(117	)		 	(188	)		 	(242	)		 	(375	)	
									 	
Income before provision for income taxes			55,974				41,952				105,409				70,226		
									 	
Provision for income taxes		 	(19,031	)		 	(14,201	)		 	(34,208	)		 	(24,281	)	
									 	
Net Income		$	36,943	 		$	27,751	 		$	71,201	 		$	45,945	 	
									 	
Weighted average shares outstanding - basic			64,690				62,172				64,441				62,086		
Weighted average shares outstanding - diluted (1)			66,135				63,488				66,044				63,281		
									 	
Earnings per common share - basic		$	0.57			$	0.45			$	1.10			$	0.74		
Earnings per common share - diluted (1)		$	0.56			$	0.44			$	1.08			$	0.73		
									 	
(1) Assumes exercise of dilutive stock options calculated under the treasury stock method.				

	 		 		
Supplemental Information
Stock-based Compensation Expense
Unaudited
(In thousands)	
				 	
		Three Months Ended		Six Months Ended	
		June 30,		June 30,	
		2011	 	2010		2011	 	2010	
								 	
Stock-based compensation expense included in cost of sales		$	89	 		$	73	 		$	180	 		$	141	 	
								 	
Selling, general and administrative expense			999				835				2,006				1,585		
Research and development expense		 	988	 		 	900	 		 	1,979	 		 	1,771	 	
								 	
Stock-based compensation expense included in operating expenses		 	1,987	 		 	1,735	 		 	3,985	 		 	3,356	 	
								 	
Total stock-based compensation expense			2,076				1,808				4,165				3,497		
Tax benefit for expense associated with non-qualified options		 	(276	)		 	(195	)		 	(716	)		 	(372	)	
								 	
Total stock-based compensation expense, net of tax		$	1,800	 		$	1,613	 		$	3,449	 		$	3,125	 	

	 		
Consolidated Statements of Cash Flow
Unaudited
(In thousands)	
		 	
		Six Months Ended	
		June 30,	
		2011	 	2010	
Cash flows from operating activities:					
Net income		$	71,201			$	45,945		
Adjustments to reconcile net income to net cash provided by operating activities:					
Depreciation and amortization			5,469				5,218		
Amortization of net premium on available-for-sale investments			2,992				2,211		
Net realized gain on long-term investments			(6,139	)			(4,656	)	
Net loss on disposal of property, plant and equipment			17				12		
Stock-based compensation expense			4,165				3,497		
Deferred income taxes			(192	)			(2,183	)	
Tax benefit from stock option exercises			10,318				1,757		
Excess tax benefits from stock-based compensation arrangements			(9,180	)			(1,579	)	
Change in operating assets and liabilities:					
Accounts receivable, net			(12,373	)			(3,596	)	
Other receivables			(6,463	)			(3,929	)	
Income tax receivable, net			1,936				-		
Inventory			(12,402	)			(18,273	)	
Prepaid expenses and other assets			(176	)			(647	)	
Accounts payable			14,703				18,512		
Accrued expenses and other liabilities			1,870				5,798		
Income tax payable, net		 	-	 		 	892	 	
Net cash provided by operating activities			65,746				48,979		
				 	
Cash flows from investing activities:					
Purchases of property, plant and equipment			(6,287	)			(4,789	)	
Proceeds from sales and maturities of available-for-sale investments			237,459				111,985		
Purchases of available-for-sale investments		 	(335,870	)		 	(137,688	)	
Net cash used in investing activities			(104,698	)			(30,492	)	
				 	
Cash flows from financing activities:					
Proceeds from stock option exercises			33,022				7,409		
Purchases of treasury stock			-				(10,330	)	
Dividend payments			(11,596	)			(11,171	)	
Excess tax benefits from stock-based compensation arrangements		 	9,180	 		 	1,579	 	
Net cash provided by (used in) financing activities			30,606				(12,513	)	
				 	
Net increase (decrease) in cash and cash equivalents			(8,346	)			5,974		
Effect of exchange rate changes			456				(602	)	
Cash and cash equivalents, beginning of period		 	31,677	 		 	24,135	 	
				 	
Cash and cash equivalents, end of period		$	23,787	 		$	29,507	 	

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
Unaudited
(In thousands)

	Three Months Ended	 	Six Months Ended	
	June 30,		June 30,	
	 	2011	 	 	 	2010	 		 	2011	 	 	 	2010	 	
Product revenues:								
Carrier Systems	$	112,289			$	73,148			$	199,039			$	131,241		
Business Networking		35,699				32,165				72,062				58,622		
Loop Access	 	36,239	 		 	45,048	 		 	78,648	 		 	87,525	 	
Total	$	184,227	 		$	150,361	 		$	349,749	 		$	277,388	 	
							 	
Subcategories included in the above:								
Broadband Access (included in Carrier Systems)	$	77,062			$	44,971			$	128,844			$	81,333		
Optical Access (included in Carrier Systems)		22,008				16,128				42,924				27,387		
Internetworking (Netvanta & Multi-service Access
  Gateways) (included in Business Networking)	 	33,029	 		 	27,902	 		 	65,912	 		 	50,085	 	
Total Growth Products	 	132,099	 		 	89,001	 		 	237,680	 		 	158,805	 	
Percentage of Total Revenue		72	%			59	%			68	%			57	%	
							 	
HDSL (does not include T1) (included in Loop
  Access)		34,049				42,174				74,994				82,104		
Other Products (excluding HDSL)	 	18,079	 		 	19,186	 		 	37,075	 		 	36,479	 	
Total Traditional Products	 	52,128	 		 	61,360	 		 	112,069	 		 	118,583	 	
Percentage of Total Revenue		28	%			41	%			32	%			43	%	
							 	
Total	$	184,227	 		$	150,361	 		$	349,749	 		$	277,388	 	
							 	
Segment Revenues:								
Carrier Networks	$	150,492			$	117,579			$	282,852			$	217,103		
Enterprise Networks	 	33,735	 		 	32,782	 		 	66,897	 		 	60,285	 	
Total	$	184,227	 		$	150,361	 		$	349,749	 		$	277,388	 	
							 	
Sales by Geographic Region:								
United States	$	160,804			$	142,046			$	313,917			$	262,346		
International	 	23,423	 		 	8,315	 		 	35,832	 		 	15,042	 	
Total	$	184,227	 		$	150,361	 		$	349,749	 		$	277,388