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
6 part numbers are covered.
| Part number | Description |
|---|---|
| ISR1100-4G | ISR1100 Series Router, 4 Eth LAN/WAN Ports, 4G RAM |
| ISR1100-4GLTEGB | ISR1100 Router, 4 Eth LAN/WAN Ports, 1 LTE Port, 4G RAM |
| ISR1100-4GLTENA | ISR1100 Router, 4 Eth LAN/WAN Ports, 1 LTE Port, 4G RAM |
| ISR1100-6G | ISR1100 Router, 4 GE LAN/WAN Ports and 2 SFP ports, 4GB RAM |
| ISR1100X-4G | ISR1100 Series Router, 4 Eth LAN/WAN Ports, 8GB RAM |
| ISR1100X-6G | ISR1100 Router, 4 GE LAN/WAN Ports and 2 SFP ports, 8GB RAM |
Upgrade path
Cisco does not name a replacement part number in this announcement. Browse current Cisco products, or send your existing part numbers with a quote request and we will propose a new current model.
Source
Cisco: End-of-Sale and End-of-Life Announcement for the Cisco ISR1100 and ISR1100X Series Routers. Retrieved 25 October 2026. Manufacturers sometimes revise these dates; check the source for the exact part number you run.