Form 10-K/A - Annual report [Section 13 and 15(d), not S-K Item 405]: [Amend]
SEC Accession No. 0001289945-21-000030
Filing Date
2021-04-30
Accepted
2021-04-30 16:24:38
Documents
18
Period of Report
2020-12-31

Document Format Files

Seq Description Document Type Size
1 10-K/A spok-20201231.htm   iXBRL 10-K/A 724003
2 EX-4.2 ex42-descriptionofsecuriti.htm EX-4.2 18970
3 EX-31.3 ex313-ceo302certification.htm EX-31.3 4120
4 EX-31.4 ex314-cfo302certification.htm EX-31.4 3928
10 spok-20201231_g1.jpg GRAPHIC 111268
  Complete submission text file 0001289945-21-000030.txt   1314992

Data Files

Seq Description Document Type Size
5 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT spok-20201231.xsd EX-101.SCH 2424
6 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT spok-20201231_cal.xml EX-101.CAL 714
7 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT spok-20201231_def.xml EX-101.DEF 1651
8 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT spok-20201231_lab.xml EX-101.LAB 35935
9 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT spok-20201231_pre.xml EX-101.PRE 19112
11 EXTRACTED XBRL INSTANCE DOCUMENT spok-20201231_htm.xml XML 18109
Mailing Address 6850 VERSAR CENTER, SUITE 420 SPRINGFIELD VA 22151
Business Address 6850 VERSAR CENTER, SUITE 420 SPRINGFIELD VA 22151 800-611-8488
Spok Holdings, Inc (Filer) CIK: 0001289945 (see all company filings)

EIN.: 161694797 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-K/A | Act: 34 | File No.: 001-32358 | Film No.: 21878464
SIC: 4812 Radiotelephone Communications