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CIK 0000926282 · Large accelerated filer

ADTRAN Holdings, Inc.

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Ticker
ADTN
Exchange
Nasdaq
Industry
Telephone & Telegraph Apparatus
FY end
Dec 31
Entity type
operating
EIN
872164282
Phone
256-963-8220
Business address
901 EXPLORER BLVD, HUNTSVILLE, AL, 35806
Former names
ADTRAN INC
  1. S-3ASR Offering Registration Statement
  2. 11-K Other Annual Report
  3. 144 Insider Sale of Securities
  4. SD Other Specialized Disclosure
  5. 144 Insider Sale of Securities
  6. DEFA14A Proxy Proxy Materials
  7. ARS Other Annual Report to Security Holders
  8. DEFA14A Proxy Proxy Materials
  9. 144 Insider Sale of Securities
  10. 11-K Other Annual Report
  11. ARS/A Other ARS/A
  12. DEFA14A Proxy Proxy Materials
  13. DEFR14A Other DEFR14A
  14. SD Other Specialized Disclosure
  15. DEFA14A Proxy Proxy Materials
  16. DEFA14A Proxy Proxy Materials
  17. NT 10-Q Other NT 10-Q
  18. ARS Other Annual Report to Security Holders
  19. DEFA14A Proxy Proxy Materials
  20. EFFECT Other Notice of Effectiveness

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