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Filing Detail
Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001564590-21-009423
Filing Date
2021-02-26
Accepted
2021-02-26 16:10:04
Documents
161
Period of Report
2020-12-31

Document Format Files

Seq Description Document Type Size
1 10-K adtn-10k_20201231.htm   iXBRL 10-K 6319487
2 EX-10.3(AD) adtn-ex103ad_360.htm EX-10.3(AD) 165413
3 EX-10.3(AE) adtn-ex103ae_284.htm EX-10.3(AE) 5074
4 EX-10.3(AF) adtn-ex103af_361.htm EX-10.3(AF) 6655
5 EX-21 adtn-ex21_17.htm EX-21 26267
6 EX-23 adtn-ex23_12.htm EX-23 3230
7 EX-24 adtn-ex24_19.htm EX-24 10407
8 EX-31 adtn-ex31_16.htm EX-31 34723
9 EX-32 adtn-ex32_18.htm EX-32 13161
10 GRAPHIC gfrly5faoe5s000001.jpg GRAPHIC 34818
11 GRAPHIC gfrly5faoe5s000002.jpg GRAPHIC 9720
12 GRAPHIC gkqztba0m5jn000001.jpg GRAPHIC 51543
13 GRAPHIC gxk1k1vty2he000001.jpg GRAPHIC 11806
  Complete submission text file 0001564590-21-009423.txt   29685331

Data Files

Seq Description Document Type Size
14 XBRL TAXONOMY EXTENSION SCHEMA adtn-20201231.xsd EX-101.SCH 128069
15 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE adtn-20201231_cal.xml EX-101.CAL 162026
16 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE adtn-20201231_def.xml EX-101.DEF 432972
17 XBRL TAXONOMY EXTENSION LABEL LINKBASE adtn-20201231_lab.xml EX-101.LAB 1014718
18 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE adtn-20201231_pre.xml EX-101.PRE 827146
19 EXTRACTED XBRL INSTANCE DOCUMENT adtn-10k_20201231_htm.xml XML 8046192
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)

IRS No.: 630918200 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 000-24612 | Film No.: 21688817
SIC: 3661 Telephone & Telegraph Apparatus
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