# Filing Detail

Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0001410578-25-001593
Filing Date
2025-08-07
Accepted
2025-08-07 10:49:03
Documents
65
Period of Report
2025-06-30

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-Q | ccoi-20250630x10q.htm iXBRL | 10-Q | 2331568
2 | EX-31.1 | ccoi-20250630xex31d1.htm | EX-31.1 | 13480
3 | EX-31.2 | ccoi-20250630xex31d2.htm | EX-31.2 | 12160
4 | EX-32.1 | ccoi-20250630xex32d1.htm | EX-32.1 | 6854
5 | EX-32.2 | ccoi-20250630xex32d2.htm | EX-32.2 | 5708
| Complete submission text file | 0001410578-25-001593.txt |  | 11975029

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
6 | EX-101.SCH | ccoi-20250630.xsd | EX-101.SCH | 70370
7 | EX-101.CAL | ccoi-20250630_cal.xml | EX-101.CAL | 65457
8 | EX-101.DEF | ccoi-20250630_def.xml | EX-101.DEF | 328034
9 | EX-101.LAB | ccoi-20250630_lab.xml | EX-101.LAB | 604124
10 | EX-101.PRE | ccoi-20250630_pre.xml | EX-101.PRE | 448477
68 | EXTRACTED XBRL INSTANCE DOCUMENT | ccoi-20250630x10q_htm.xml | XML | 2849425

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-Q | Act: 34 | File No.: 000-51829 | Film No.: 251192382
SIC: 4899 Communications Services, NEC
(CF Office: 06 Technology)