Lifecycle record
AIR-CT3504-K9 EOL & EOSL Dates
Cisco 3504 Wireless Controller (TAA)
Lifecycle status
End of Support (EOL Completed)
AIR-CT3504-K9 reached its last date of support on 2025-01-31. Cisco support services are no longer available for this model. Recommended replacement: C9800-L-F-K9-C9800-L-C-K9-C91XXAXX-EWC-X.
Last checked: 2026-06-16
EOL & EOSL Dates and Details
| End-of-Life Announcement (EOL) | 2021-03-31 |
|---|---|
| End of Sale (EOS) | 2021-03-31 |
| End of Service Life (EOSL) | 2027-01-31 |
| Manufacturer | Cisco |
| Category | Wireless |
| Product Series | Cisco AireOS 3504 |
| Part Number | AIR-CT3504-K9 |
| Model Number | AIR-CT3504-K9++ |
| Release Date | 2017-03-07 |
| Replacement Part Number | C9800-L-F-K9-C9800-L-C-K9-C91XXAXX-EWC-X |
| Replacement Product Name | Cisco Catalyst 9800-L Wireless Controllers |
Lifecycle Timeline
Recorded lifecycle milestones in date order.
Additional Information
Support milestones and the official source recorded for this model.
| Last Ship Date: HW, License | 2021-05-02 |
|---|---|
| End Of New Service Attachment Date: HW | 2022-01-31 |
| End Of SW Maintenance Releases Date: HW | 2023-01-31 |
| End Of Routine Failure Analysis Date : HW | 2022-01-31 |
| End Of Vulnerability/Security Support : HW | 2025-01-30 |
| End Of Service Contract Renewal Date : HW | 2026-05-01 |
| End Of Service Contract Renewal Date : App SW | 2024-05-02 |
| Last Date Of Support : HW | 2027-01-31 |
| Last Date Of Support : App SW | 2025-01-31 |
| Official EOL Notice | View Official EOL Documentation |
More Cisco AireOS 3504 EOL Dates
| Part Number | Product Name | EOL Announcement | End of Sale |
|---|---|---|---|
| AIR-CT3504-CA-K9 | Cisco 3504 Wireless Controller for Service Depot TAA | 2021-03-31 | 2021-03-31 |
| AIR-CT3504-RMNT | Cisco 3504 Wireless Controller Rack Mount Tray | 2021-03-31 | 2021-03-31 |
| CT3504-LIC | Cisco CT3504 LIC | 2021-03-31 | 2021-03-31 |
| EDU-LIC-CT3504-UPG | Cisco K12 SKU for 3504 AP Adder Licenses | 2021-03-31 | 2021-03-31 |
| LIC-CT3504-1AP-INT | Cisco 3504 Wireless Controller 1 AP Lic integrated with AP | 2021-03-31 | 2021-03-31 |
| LIC-CT3504-INT-1A | Cisco 1 AP license to attach with AP bundle (cannot be ordered) | 2021-03-31 | 2021-03-31 |