Milestone dates
The dates Cisco published, with Cisco's own wording under each milestone.
| Milestone | Date |
|---|---|
| End of saleCisco: End-of-Sale Date: HW | |
| Last ship dateCisco: Last Ship Date: HW | |
| End of software maintenanceCisco: End of SW Maintenance Releases Date: HW | |
| End of hardware repairCisco: End of Routine Failure Analysis Date: HW | |
| End of new service contractsCisco: End of New Service Attachment Date: HW | |
| End of security fixesCisco: End of Vulnerability/Security Support: HW | |
| End of service contract renewalCisco: End of Service Contract Renewal Date: HW | |
| Last date of supportCisco: Last Date of Support: HW |
Affected part numbers
5 part numbers are covered.
| Part number | Description | Replacement named by Cisco |
|---|---|---|
| C1101-4PLTEP | ISR 1101 4P GE Ethernet and LTE Secure Router with Pluggable | C1121-4PLTEP |
| C1109-2PLTEUS | ISR 1109 M2M 2 Ports GE Ethernet and LTE ATT and TMobile | C1121-4PLTEP |
| C1109-2PLTEVZ | ISR 1109 M2M 2 Ports GE Ethernet and LTE Verizon | C1121-4PLTEP |
| C1109-2PLTEGB | ISR 1109 M2M 2 Ports GE Ethernet and LTE Europe | C1121-4PLTEP |
| C1101-4P | ISR 1101 4 Ports GE Ethernet WAN Router | C1121-4P |
Upgrade path
Cisco names 2 replacement part numbers. We list 1 of them new; open a listing to check its specifications and price.
Source
Cisco: End-of-Sale and End-of-Life Announcement for Cisco select ISR 1101 and ISR 1109 Series Routers. Retrieved 25 October 2026. Manufacturers sometimes revise these dates; check the source for the exact part number you run.