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Cisco End-of-Life & End-of-Service Lookup & Planning

Browse all Cisco hardware families – routers, switches, wireless, security and more – with official End-of-Life (EOL), End-of-Sale (EOS) and End-of-Service-Life (EOSL) dates. Use this Cisco EOL database to plan refresh projects, avoid unsupported devices, and keep your network secure and compliant.

Tip: try isr4331 or a series such as ISR 4000.

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Cisco EOL / EOSL Database – Full List of End-of-Life Products

Search, browse, and plan lifecycle transitions across all Cisco product families.

Showing 4531–4545 of 32149 results
# Category Series Part Number Product Name EOL / EOS / EOSL
4531 Networking Accessories Cisco ISR 4300 ISR4331-K9 Cisco ISR 4300 ISR4331/K9 EOSL: 2028-11-30
4532 Networking Accessories Cisco ISR 4300 ISR4331-PM20 Cisco ISR 4300 ISR4331-PM20 EOSL: 2028-11-30
4533 Networking Accessories Cisco ISR 4300 ISR4331-SEC-K9 Cisco ISR 4300 ISR4331-SEC/K9 EOSL: 2028-11-30
4534 Networking Accessories Cisco ISR 4300 ISR4331-SPM Cisco ISR 4300 ISR4331-SPM EOSL: 2020-01-27
4535 Networking Accessories Cisco ISR 4300 ISR4331-SPM-8G Cisco ISR 4300 ISR4331-SPM-8G EOSL: 2020-01-27
4536 Networking Accessories Cisco ISR 4300 ISR4331-V-K9 Cisco ISR 4300 ISR4331-V/K9 EOSL: 2028-11-30
4537 Networking Accessories Cisco ISR 4300 ISR4331-VSEC-K9 Cisco ISR 4300 ISR4331-VSEC/K9 EOSL: 2028-11-30
4538 Networking Accessories Cisco ISR 4300 ISR4331BR-K9 Cisco ISR 4300 ISR4331BR/K9 EOSL: 2029-01-31
4539 Networking Accessories Cisco ISR 4300 ISR4351-AX-K9 Cisco ISR 4300 ISR4351-AX/K9 EOSL: 2028-11-30
4540 Networking Accessories Cisco ISR 4300 ISR4351-AXV-K9 Cisco ISR 4300 ISR4351-AXV/K9 EOSL: 2028-11-30
4541 Networking Accessories Cisco ISR 4300 ISR4351-DNA Cisco ISR 4300 ISR4351-DNA EOSL: 2028-11-30
4542 Networking Accessories Cisco ISR 4300 ISR4351-K9 Cisco ISR 4300 ISR4351/K9 EOSL: 2028-11-30
4543 Networking Accessories Cisco ISR 4300 ISR4351-PM20 Cisco ISR 4300 ISR4351-PM20 EOSL: 2028-11-30
4544 Networking Accessories Cisco ISR 4300 ISR4351-SEC-K9 Cisco ISR 4300 ISR4351-SEC/K9 EOSL: 2028-11-30
4545 Networking Accessories Cisco ISR 4300 ISR4351-V-K9 Cisco ISR 4300 ISR4351-V/K9 EOSL: 2028-11-30

Why Check Cisco EOL and EOSL Dates Regularly?

Tracking lifecycle milestones helps you maintain security, continuity, and predictable budgets across your Cisco infrastructure.

01

Security risks & patch coverage

Unsupported devices stop receiving firmware, bug fixes, and security updates. Regularly reviewing EOL/EOSL dates helps you retire or replace high-risk hardware before it becomes a security gap.

02

Maintenance & replacement planning

Knowing lifecycle milestones in advance lets you schedule hardware refresh without downtime, evaluate successor models, and coordinate maintenance windows with your operations team.

03

Budget & upgrade strategy

Align refresh cycles with finance plans instead of reacting to sudden failures. A clear EOL/EOSL roadmap helps you spread investments over time and avoid last-minute, unplanned replacement costs.

Cisco End-of-Life (EOL) & End-of-Service (EOS) Policy Overview

Layer23-Switch.com provides this summary based on the official End of Life (EOL) policy published by Cisco . The goal is to help users clearly understand lifecycle milestones, support timelines, and the transition process as products move toward EOL and End of Service Life (EOSL).

Milestone Description Typical Duration
End-of-Life (EOL) Announcement Cisco officially announces the product’s end-of-sale and end-of-support schedule. Replacement recommendations are often included in the notice. 0 Months (Announcement Date)
End-of-Sale (EOS) The last date to order the product from Cisco through authorized partners. After this date, it is no longer sold. ~6 Months after EOL Announcement
Last Ship Date The final date that Cisco ships the product to customers. Any pending orders must be fulfilled by this date. ~12 Months after EOL Announcement
End of SW Maintenance The last date Cisco releases software maintenance updates or patches (excluding critical security fixes). ~24 Months after EOL Announcement
End of Service Contract Renewal The final date customers can renew support or service contracts for the product. ~36 Months after EOL Announcement
Last Date of Support / EOSL Technical support and hardware repair services end. Cisco no longer provides software updates or TAC assistance. ~60 Months after EOL Announcement

Why Cisco EOL Policy Matters

Cisco ’s structured EOL process ensures long-term product stability and predictable lifecycle transitions. Customers can continue to receive support and software updates for years after the product’s end-of-sale date.

Planning for Replacement

To avoid service interruptions, review official EOL bulletins and migrate to newer models well before the EOSL date.