Calix GigaSpire u12 (GS2020E) & GM1020 — End-of-Life & EOSL Dates
Calix GigaSpire u12 (GS2020E) & GM1020 — end-of-sale and end-of-support dates by part number, from the Calix Customer Advisory Bulletin cited below.
Every tracked Calix GigaSpire u12 (GS2020E) & GM1020 SKU group is past Calix end of service life (last group Aug 2025). Units in production should be treated as unsupported. For past-EOSL units, weigh third-party maintenance, spares, replacement, or a documented run-to-failure.
End of sale
Jun 2020
Last date of support
Aug 2025
Part numbers
3
12
months past last support
Why this score
- Past end of service life — 12 months ago
- Vendor-published date, source-linked
- Category: optical network terminal
Support-lifecycle timing and source confidence only. Higher means more runway. It is not a risk, safety or compliance rating. How it is calculated
Part numbers in this family
All 3 share the dates above. Find your exact part to confirm.
| Part number | Description | End of sale | Last support | Status |
|---|---|---|---|---|
| 000-01174 | GS4227E, 2.5G WAN, 4 GE LAN, dual band | Jun 2020 | Aug 2025 | Past support |
| 000-01175 | GS4220E, GE WAN, 4 GE LAN, dual band Wi-Fi | Jun 2020 | Aug 2025 | Past support |
| 100-05494 | GM1028, Dual band 2x2 Wi-Fi 6, GE LAN/WAN | Jun 2020 | Aug 2025 | Past support |
Options from here
The Calix GigaSpire u12 (GS2020E) & GM1020 is past Calix end of service life. These are the paths teams take from here:
Keep it in production past the OEM cutoff with an independent maintainer.
Buy spares now, while units still circulate on the secondary market.
It is unsupported today. Set a migration timeline and budget.
Low-criticality role: document the risk, harden backups, retire on your terms.
Independent and informational. EOSL.ai sells no hardware and no maintenance, and lists no paid placements. Third-party maintenance keeps unsupported gear in production past the OEM cutoff; whether it fits depends on the role the asset plays.
Calix GigaSpire u12 (GS2020E) & GM1020 — questions
Is the Calix GigaSpire u12 (GS2020E) & GM1020 end of life?
Yes. Every tracked GigaSpire u12 (GS2020E) & GM1020 SKU group is past its last date of support.
What is the last date of support for the GigaSpire u12 (GS2020E) & GM1020?
Aug 2025, per the Calix end-of-sale bulletin.
Where do these GigaSpire u12 (GS2020E) & GM1020 dates come from?
Every end-of-sale and end-of-service-life date on this page links to the official Calix end-of-sale bulletin it was taken from.
On the same timetable
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