The Cisco 4000 Series ISR is end of sale. Cisco’s official series page (checked October 2026) gives these dates: ISR 4221, 4321, 4331, 4351, 4431, 4451-X: Last Date of Support is 30 November 2028. ISR 4461: end of sale was 20 January 2025. Last Date of Support is 31 January 2030. Recommended replacement: Cisco Catalyst … Read more
Cisco 1000 Series Integrated Services Routers EOL Last verified: October 8, 2026 Cisco has not announced EOL for the Cisco 1000 Series Integrated Services Routers as a whole. It has announced it part number by part number, in seven hardware bulletins published between November 2022 and July 2026, so your dates depend on which bulletin … Read more
The Cisco 900 Series Integrated Services Routers are now End of Sale. Cisco’s last day to order the affected hardware and licenses through its normal point-of-sale channels was July 28, 2026. That does not mean Cisco 900 Series routers immediately stop working or that all support has ended. Cisco’s published lifecycle schedule extends much further: … Read more
Cisco 800 Series Routers EOL: End-of-Life and Support Information The Cisco 800 Series Integrated Services Routers (ISRs) have served as the standard fixed-configuration edge device for small offices, teleworkers, and enterprise branch locations for over a decade. Cisco has systematically phased out the majority of this family, transitioning customers to newer SD-WAN-capable platforms. Because the … Read more