Cisco 800 Router Buying Guide: EOL, Refurbished Options, Replacements

The Cisco 800 Series Integrated Services Routers (ISR) are currently in the final stages of their product lifecycle, with most models having reached their End-of-Sale (EOS) milestone in November 2020 and approaching their "Last Day of Support" on November 30, 2025. Cisco Router-Switch

Key Market Trends (2024–2026)

* Infrastructure Modernization: Enterprises are rapidly transitioning from legacy branch hardware like the 800 series to next-generation SD-WAN and AI-ready platforms like the Catalyst 8000 and ISR 1000 series. Networkworld Accio

* Performance Demands: Driven by AI workloads and fiber expansion, the market is shifting toward 100G/400G throughput, making the low-throughput 800 series less viable for modern corporate environments. Futuremarketinsights

* Secondary Market Activity: Despite their age, these routers remain highly active in the refurbished market. Refurbished C881-K9 models are currently trading at approximately $75–$80 per unit for bulk orders. Alibaba

* Interest Spikes: Research interest for "Cisco routers" reached a recent peak in April 2026, likely driven by small businesses seeking affordable legacy hardware or network engineers for homelab environments.

I have compiled a detailed report covering EOL dates, specific replacement models, and market signals to help guide your sourcing or migration strategy.

Cisco Router 800

Overview

Key Market Trends (2024–2026)

Cisco 800 Series Router 881 891 892 Refurbished Or Used

Full Market Report

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Sources & References