Lifecycle record
C1F1UISR3900SK9 EOL & EOSL Dates
Cisco ONE Upg-to Foundation Perpetual ISR3900 Std
Lifecycle status
In EOSL Phase
C1F1UISR3900SK9 reached its last date of support on 2021-06-30. Cisco support services are no longer available for this model. Recommended replacement: C1F2UISR4431SK9.
Last checked: 2026-06-16
EOL & EOSL Dates and Details
| End-of-Life Announcement (EOL) | 2018-03-30 |
|---|---|
| End of Sale (EOS) | 2018-06-30 |
| End of Service Life (EOSL) | 2021-06-30 |
| Manufacturer | Cisco |
| Category | Software |
| Product Series | Cisco ISR3900 |
| Part Number | C1F1UISR3900SK9 |
| Release Date | - |
| Replacement Part Number | C1F2UISR4431SK9 |
| Replacement Product Name | Cisco ONE Upg-to Foundation Perpetual ISR4431 |
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 | 2018-09-30 |
|---|---|
| End Of New Service Attachment Date: HW | 2019-06-30 |
| End Of SW Maintenance Releases Date: HW | 2019-06-30 |
| End Of Service Contract Renewal Date: HW | 2020-09-30 |
| Official EOL Notice | View Official EOL Documentation |
More Cisco ISR3900 EOL Dates
| Part Number | Product Name | EOL Announcement | End of Sale |
|---|---|---|---|
| C1AUAISR3900SK9 | Cisco ONE Advanced App Services Perpetual ISR3900 Std | 2018-03-30 | 2018-06-30 |
| C1AUUISR3900SK9 | Cisco ONE Upg-to Advanced App Services Perpetual ISR3900 | 2018-03-30 | 2018-06-30 |
| C1F1AISR3900SK9 | Cisco ONE Foundation Perpetual ISR3900 Std | 2018-03-30 | 2018-06-30 |