Form 8-K - Current report:
SEC Accession No. 0001104659-21-056652
Filing Date
2021-04-28
Accepted
2021-04-28 17:21:07
Documents
14
Period of Report
2021-04-28
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 FORM 8-K tm2113950d1_8k.htm   iXBRL 8-K 25122
2 EXHIBIT 99.1 tm2113950d1_ex99-1.htm EX-99.1 276291
6 GRAPHIC tm2113950d1_ex99-1img01.jpg GRAPHIC 4400
  Complete submission text file 0001104659-21-056652.txt   505615

Data Files

Seq Description Document Type Size
3 XBRL TAXONOMY EXTENSION SCHEMA ccoi-20210428.xsd EX-101.SCH 3187
4 XBRL TAXONOMY EXTENSION LABEL LINKBASE ccoi-20210428_lab.xml EX-101.LAB 34592
5 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE ccoi-20210428_pre.xml EX-101.PRE 22711
7 EXTRACTED XBRL INSTANCE DOCUMENT tm2113950d1_8k_htm.xml XML 3521
Mailing Address 2450 N STREET, NW WASHINGTON DC 20037
Business Address 2450 N STREET, NW WASHINGTON DC 20037 2022954200
COGENT COMMUNICATIONS HOLDINGS, INC. (Filer) CIK: 0001158324 (see all company filings)

EIN.: 522337274 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 8-K | Act: 34 | File No.: 000-51829 | Film No.: 21865612
SIC: 4899 Communications Services, NEC