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| Number | 4000 - 4005 |
| Name | COGENT-4000 |
| Handle | AS4000 |
| Organization | Cogent Communications, LLC (COGC) |
| Registration Date | 1994-11-04 |
| Last Updated | 2025-12-23 |
| Comments | |
| RESTful Link | https://whois.arin.net/rest/asn/AS4000 |
| See Also | Related POC records. |
| See Also | Organization's POC records. |