<SEC-DOCUMENT>0001193125-21-338790-index.html : 20211124
<SEC-HEADER>0001193125-21-338790.hdr.sgml : 20211124
<ACCEPTANCE-DATETIME>20211123193459
ACCESSION NUMBER:		0001193125-21-338790
CONFORMED SUBMISSION TYPE:	425
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20211124
DATE AS OF CHANGE:		20211123
GROUP MEMBERS:		ADVA OPTICAL NETWORKING SE

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ADTRAN INC
		CENTRAL INDEX KEY:			0000926282
		STANDARD INDUSTRIAL CLASSIFICATION:	TELEPHONE & TELEGRAPH APPARATUS [3661]
		IRS NUMBER:				630918200
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		425
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-24612
		FILM NUMBER:		211440642

	BUSINESS ADDRESS:	
		STREET 1:		901 EXPLORER BLVD
		CITY:			HUNTSVILLE
		STATE:			AL
		ZIP:			35806
		BUSINESS PHONE:		256-963-8220

	MAIL ADDRESS:	
		STREET 1:		901 EXPLORER BLVD
		CITY:			HUNTSVILLE
		STATE:			AL
		ZIP:			35806

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ADVA Optical Networking SE
		CENTRAL INDEX KEY:			0001714580
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			2M
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		425

	BUSINESS ADDRESS:	
		STREET 1:		CAMPUS MARTINSRIED
		STREET 2:		FRAUNHOFERSTRASSE 9A
		CITY:			MARTINSREID MUNICH
		STATE:			2M
		ZIP:			82152
		BUSINESS PHONE:		49-0-89-890-665-901

	MAIL ADDRESS:	
		STREET 1:		CAMPUS MARTINSRIED
		STREET 2:		FRAUNHOFERSTRASSE 9A
		CITY:			MARTINSREID MUNICH
		STATE:			2M
		ZIP:			82152
</SEC-HEADER>
<DOCUMENT>
<TYPE>425
<SEQUENCE>1
<FILENAME>d236784d425.htm
<DESCRIPTION>425
<TEXT>
Document 1 - file: d236784d425.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g236784g1124044213627.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g236784g1124044213627.jpg

</DOCUMENT>
</SEC-DOCUMENT>