Form 11-K - Annual report of employee stock purchase, savings and similar plans:
SEC Accession No. 0001564590-21-035050
Filing Date
2021-06-29
Accepted
2021-06-29 15:40:17
Documents
2
Period of Report
2020-12-31

Document Format Files

Seq Description Document Type Size
1 11-K adtn-11k_20201231.htm 11-K 599209
2 EX-23.1 adtn-ex231_6.htm EX-23.1 3321
  Complete submission text file 0001564590-21-035050.txt   603494
Mailing Address 901 EXPLORER BLVD HUNTSVILLE AL 35806
Business Address 901 EXPLORER BLVD HUNTSVILLE AL 35806 256-963-8220
ADTRAN INC (Filer) CIK: 0000926282 (see all company filings)

EIN.: 630918200 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 11-K | Act: 34 | File No.: 000-24612 | Film No.: 211057985
SIC: 3661 Telephone & Telegraph Apparatus