Form 8-K/A - Current report: [Amend]
SEC Accession No. 0001564590-21-009408
Filing Date
2021-02-26
Accepted
2021-02-26 16:00:44
Documents
13
Period of Report
2021-02-03
Items
Item 2.02: Results of Operations and Financial Condition
Item 9.01: Financial Statements and Exhibits

Document Format Files

Seq Description Document Type Size
1 8-K/A adtn-8ka_20210203.htm   iXBRL 8-K/A 57730
2 EX-99.1 adtn-ex991_6.htm EX-99.1 311470
  Complete submission text file 0001564590-21-009408.txt   513345

Data Files

Seq Description Document Type Size
3 XBRL TAXONOMY EXTENSION SCHEMA adtn-20210203.xsd EX-101.SCH 5768
4 XBRL TAXONOMY EXTENSION LABEL LINKBASE adtn-20210203_lab.xml EX-101.LAB 19444
5 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE adtn-20210203_pre.xml EX-101.PRE 11613
6 EXTRACTED XBRL INSTANCE DOCUMENT adtn-8ka_20210203_htm.xml XML 4206
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: 8-K/A | Act: 34 | File No.: 000-24612 | Film No.: 21688535
SIC: 3661 Telephone & Telegraph Apparatus