Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001410578-25-000226
Filing Date
2025-02-28
Accepted
2025-02-28 10:13:33
Documents
96
Period of Report
2024-12-31

Document Format Files

Seq Description Document Type Size
1 10-K ccoi-20241231x10k.htm   iXBRL 10-K 2698498
2 EX-19.1 ccoi-20241231xex19d1.htm EX-19.1 63068
3 EX-21.1 ccoi-20241231xex21d1.htm EX-21.1 76061
4 EX-23.1 ccoi-20241231xex23d1.htm EX-23.1 9258
5 EX-31.1 ccoi-20241231xex31d1.htm EX-31.1 10769
6 EX-31.2 ccoi-20241231xex31d2.htm EX-31.2 10787
7 EX-32.1 ccoi-20241231xex32d1.htm EX-32.1 5856
8 EX-32.2 ccoi-20241231xex32d2.htm EX-32.2 5852
9 GRAPHIC ccoi-20241231x10k002.jpg GRAPHIC 43916
  Complete submission text file 0001410578-25-000226.txt   13067250

Data Files

Seq Description Document Type Size
10 EX-101.SCH ccoi-20241231.xsd EX-101.SCH 91705
11 EX-101.CAL ccoi-20241231_cal.xml EX-101.CAL 98578
12 EX-101.DEF ccoi-20241231_def.xml EX-101.DEF 464959
13 EX-101.LAB ccoi-20241231_lab.xml EX-101.LAB 852289
14 EX-101.PRE ccoi-20241231_pre.xml EX-101.PRE 653374
99 EXTRACTED XBRL INSTANCE DOCUMENT ccoi-20241231x10k_htm.xml XML 2227506
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: 10-K | Act: 34 | File No.: 000-51829 | Film No.: 25683744
SIC: 4899 Communications Services, NEC
(CF Office: 06 Technology)