<SEC-DOCUMENT>0000950170-25-070493-index.html : 20250513
<SEC-HEADER>0000950170-25-070493.hdr.sgml : 20250513
<ACCEPTANCE-DATETIME>20250513165503
ACCESSION NUMBER:		0000950170-25-070493
CONFORMED SUBMISSION TYPE:	NT 10-Q
PUBLIC DOCUMENT COUNT:		4
CONFORMED PERIOD OF REPORT:	20250513
FILED AS OF DATE:		20250513
DATE AS OF CHANGE:		20250513
EFFECTIVENESS DATE:		20250513

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ADTRAN Holdings, Inc.
		CENTRAL INDEX KEY:			0000926282
		STANDARD INDUSTRIAL CLASSIFICATION:	TELEPHONE & TELEGRAPH APPARATUS [3661]
		ORGANIZATION NAME:           	04 Manufacturing
		EIN:				872164282
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		NT 10-Q
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41446
		FILM NUMBER:		25941042

	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

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ADTRAN INC
		DATE OF NAME CHANGE:	19940705
</SEC-HEADER>
<DOCUMENT>
<TYPE>NT 10-Q
<SEQUENCE>1
<FILENAME>adtn_-_nt_10-q_q1_2025.htm
<DESCRIPTION>NT 10-Q
<TEXT>
Document 1 - file: adtn_-_nt_10-q_q1_2025.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>gfx194835433_1.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: gfx194835433_1.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>gfx194835433_0.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: gfx194835433_0.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>gfx194835433_2.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: gfx194835433_2.gif

</DOCUMENT>
</SEC-DOCUMENT>