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Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001410578-24-000091
Filing Date
2024-02-29
Accepted
2024-02-29 11:34:39
Documents
97
Period of Report
2023-12-31

Document Format Files

Seq Description Document Type Size
1 10-K ccoi-20231231x10k.htm   iXBRL 10-K 2531173
2 EX-10.23 ccoi-20231231xex10d23.htm EX-10.23 13238
3 EX-21.1 ccoi-20231231xex21d1.htm EX-21.1 95871
4 EX-23.1 ccoi-20231231xex23d1.htm EX-23.1 9635
5 EX-31.1 ccoi-20231231xex31d1.htm EX-31.1 9829
6 EX-31.2 ccoi-20231231xex31d2.htm EX-31.2 9768
7 EX-32.1 ccoi-20231231xex32d1.htm EX-32.1 6610
8 EX-32.2 ccoi-20231231xex32d2.htm EX-32.2 6567
9 EX-97.1 ccoi-20231231xex97d1.htm EX-97.1 45246
10 GRAPHIC ccoi-20231231x10k002.jpg GRAPHIC 46172
  Complete submission text file 0001410578-24-000091.txt   12863891

Data Files

Seq Description Document Type Size
11 EX-101.SCH ccoi-20231231.xsd EX-101.SCH 85804
12 EX-101.CAL ccoi-20231231_cal.xml EX-101.CAL 77096
13 EX-101.DEF ccoi-20231231_def.xml EX-101.DEF 456923
14 EX-101.LAB ccoi-20231231_lab.xml EX-101.LAB 835066
15 EX-101.PRE ccoi-20231231_pre.xml EX-101.PRE 644351
99 EXTRACTED XBRL INSTANCE DOCUMENT ccoi-20231231x10k_htm.xml XML 2315118
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.: 24700514
SIC: 4899 Communications Services, NEC
(CF Office: 06 Technology)