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Geographic and segment information: | 12 Months Ended
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Dec. 31, 2025
Geographic and segment information: |
Geographic and segment information: | 10. Geographic and segment information: Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker (“CODM”) in deciding how to allocate resources and in assessing the Company’s performance. The Company’s Chief Executive Officer and Chairman, Dave Schaeffer is the Company’s CODM. The Company has one operating segment. The CODM regularly reviews the following amounts on a worldwide consolidated basis as presented in the Company’s consolidated statements of comprehensive income (loss);
| ● | Service revenue
| ● | Network operations expense
| ● | Selling, general and administrative (“SG&A”) expenses
| ● | Amortization of compensation expense
| o | As components of SG&A and network operations expense
| ● | Interest expense
| ● | Gain on bargain purchase – Cogent Fiber Business
| ● | Net income (loss)
The Company’s results are evaluated for performance and resource allocation decisions based on consolidated net (loss) income. The consolidated operating segment financial information regularly reviewed by the CODM, inclusive of assets, revenue, expenses, profit or loss, and noncash items are included in the Consolidated Statements of Comprehensive Income (Loss), Consolidated Balance Sheets, and Consolidated Statements of Cash Flows.Revenues are attributed to regions based on where the services are provided. Below are the Company’s service revenues and long-lived assets by geographic region - including property plant and equipment and excluding intangible assets (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Year Ended December 31, 2025 | ​ ​ ​ | On-net | ​ ​ ​ | Off-net | ​ ​ ​ | Wavelengths | ​ ​ ​ | Non-core | ​ ​ ​ | Total
North America | ​ | $ | 400,765 | ​ | $ | 373,289 | ​ | $ | 37,443 | ​ | $ | 8,026 | ​ | $ | 819,523
Europe | ​ | ​ | 101,395 | ​ | ​ | 19,455 | ​ | ​ | 944 | ​ | ​ | 217 | ​ | ​ | 122,011
Oceania | ​ |  | 20,791 | ​ | ​ | 3,916 | ​ | ​ | 66 | ​ | ​ | 63 | ​ | ​ | 24,836
South America | ​ | ​ | 8,072 | ​ | ​ | 708 | ​ | ​ | — | ​ | ​ | 28 | ​ | ​ | 8,808
Africa | ​ | ​ | 486 | ​ | ​ | 102 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 588
Total | ​ | $ | 531,509 | ​ | $ | 397,470 | ​ | $ | 38,453 | ​ | $ | 8,334 | ​ | $ | 975,766
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Year Ended December 31, 2024 | ​ ​ ​ | On-net | ​ ​ ​ | Off-net | ​ | Wavelengths | ​ ​ ​ | Non-core | ​ ​ ​ | Total
North America | ​ | $ | 424,437 | ​ | $ | 426,857 | ​ | $ | 19,015 | ​ | $ | 17,692 | ​ | $ | 888,001
Europe | ​ |  | 94,363 | ​ | ​ | 21,242 | ​ | ​ | 172 | ​ | ​ | 347 | ​ | ​ | 116,124
Oceania | ​ |  | 18,205 | ​ | ​ | 5,013 | ​ | ​ | 9 | ​ | ​ | 91 | ​ | ​ | 23,318
South America | ​ | ​ | 7,080 | ​ | ​ | 896 | ​ | ​ | — | ​ | ​ | 43 | ​ | ​ | 8,019
Africa | ​ | ​ | 543 | ​ | ​ | 99 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 642
Total | ​ | $ | 544,628 | ​ | $ | 454,107 | ​ | $ | 19,196 | ​ | $ | 18,173 | ​ | $ | 1,036,104
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Year Ended December 31, 2023 | ​ ​ ​ | On-net | ​ ​ ​ | Off-net | ​ | Wavelengths | ​ ​ ​ | Non-core | ​ ​ ​ | Total
North America | ​ | $ | 401,213 | ​ | $ | 367,210 | ​ | $ | 5,653 | ​ | $ | 28,614 | ​ | $ | 802,690
Europe | ​ |  | 88,310 | ​ | ​ | 19,913 | ​ | ​ | — | ​ | ​ | 147 | ​ | ​ | 108,370
Oceania | ​ |  | 15,769 | ​ | ​ | 5,587 | ​ | ​ | — | ​ | ​ | 71 | ​ | ​ | 21,427
South America | ​ | ​ | 6,957 | ​ | ​ | 684 | ​ | ​ | — | ​ | ​ | 8 | ​ | ​ | 7,649
Africa | ​ | ​ | 687 | ​ | ​ | 99 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 786
Total | ​ | $ | 512,936 | ​ | $ | 393,493 | ​ | $ | 5,653 | ​ | $ | 28,840 | ​ | $ | 940,922
​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, | ​ | December 31,
​ | ​ ​ ​ | 2025 | ​ ​ ​ | 2024
Long lived assets, net | ​ | ​ | ​ | ​ | ​ | ​
North America | ​ | $ | 1,523,789 | ​ | $ | 1,579,495
Europe and other | ​ |  | 197,285 | ​ | ​ | 158,854
Total | ​ | $ | 1,721,074 | ​ | $ | 1,738,349
​

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