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Filing Detail
Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0001104659-21-134136
Filing Date
2021-11-04
Accepted
2021-11-04 11:13:09
Documents
57
Period of Report
2021-09-30

Document Format Files

Seq Description Document Type Size
1 10-Q ccoi-20210930x10q.htm   iXBRL 10-Q 1664097
2 EX-31.1 ccoi-20210930xex31d1.htm EX-31.1 14762
3 EX-31.2 ccoi-20210930xex31d2.htm EX-31.2 14211
4 EX-32.1 ccoi-20210930xex32d1.htm EX-32.1 7054
5 EX-32.2 ccoi-20210930xex32d2.htm EX-32.2 7270
  Complete submission text file 0001104659-21-134136.txt   8347882

Data Files

Seq Description Document Type Size
6 XBRL TAXONOMY EXTENSION SCHEMA ccoi-20210930.xsd EX-101.SCH 36155
7 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE ccoi-20210930_cal.xml EX-101.CAL 57528
8 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE ccoi-20210930_def.xml EX-101.DEF 193569
9 XBRL TAXONOMY EXTENSION LABEL LINKBASE ccoi-20210930_lab.xml EX-101.LAB 378800
10 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE ccoi-20210930_pre.xml EX-101.PRE 288096
11 EXTRACTED XBRL INSTANCE DOCUMENT ccoi-20210930x10q_htm.xml XML 2186624
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-Q | Act: 34 | File No.: 000-51829 | Film No.: 211378774
SIC: 4899 Communications Services, NEC