SEC Seal
SEC Banner
Search the Next-Generation EDGAR System
Filing Detail
Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001104659-20-026777
Filing Date
2020-02-28
Accepted
2020-02-28 10:35:21
Documents
90
Period of Report
2019-12-31

Document Format Files

Seq Description Document Type Size
1 10-K ccoi-20191231x10k90102d.htm   iXBRL 10-K 2165858
2 EX-4.10 ex-4d10.htm EX-4.10 10823
3 EX-21.1 ex-21d1.htm EX-21.1 59112
4 EX-23.1 ex-23d1.htm EX-23.1 9189
5 EX-31.1 ex-31d1.htm EX-31.1 11036
6 EX-31.2 ex-31d2.htm EX-31.2 13473
7 EX-32.,1 ex-32d1.htm EX-32.,1 6186
8 EX-32.,2 ex-32d2.htm EX-32.,2 6165
14 GRAPHIC ccoi-20191231x10k90102d002.jpg GRAPHIC 42111
  Complete submission text file 0001104659-20-026777.txt   9353753

Data Files

Seq Description Document Type Size
9 XBRL TAXONOMY EXTENSION SCHEMA ccoi-20191231.xsd EX-101.SCH 50499
10 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE ccoi-20191231_cal.xml EX-101.CAL 75936
11 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE ccoi-20191231_def.xml EX-101.DEF 248071
12 XBRL TAXONOMY EXTENSION LABEL LINKBASE ccoi-20191231_lab.xml EX-101.LAB 586972
13 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE ccoi-20191231_pre.xml EX-101.PRE 464486
19 EXTRACTED XBRL INSTANCE DOCUMENT ccoi-20191231x10k90102d_htm.xml XML 1715471
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)

IRS No.: 522337274 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 000-51829 | Film No.: 20666447
SIC: 4899 Communications Services, NEC