AT&T copper retirement in Illinois: what Chicago building owners need to know
AT&T inherited Illinois Bell's massive copper network across the state, and Chicago's dense commercial building stock makes Illinois one of the most impacted states in the copper retirement. If you own or manage a building anywhere in the Chicago metro area or across Illinois, your copper POTS lines are being retired.
Chicago's high-rise buildings are particularly vulnerable — a 30-story office tower can have 20+ POTS lines across elevator phones, fire alarm panels, stairwell refuge phones, and security systems. Every one of those lines stops working the day your wire center retires.
Which Illinois cities are affected?
Chicago
Chicago Suburbs
Rockford
Springfield
Peoria
Champaign
Every city and suburb served by AT&T across Illinois is part of the same retirement plan. Naperville, Aurora, Joliet, Elgin, Schaumburg, and the entire collar county region are all included.
The timeline
October 2025 — New copper orders frozen
AT&T stopped accepting new copper POTS line orders across Illinois. Existing lines grandfathered but cannot be changed.
November 2025 — Termination notices begin
First batch of 90-day notices sent to Illinois building owners. Service cutoff: November 15, 2026.
June 2026 — Wire center shutdowns begin
Physical decommissioning starts. Illinois wire centers — including downtown Chicago — are in the national wave.
What's at risk
- Fire alarm panel — DACT can't reach monitoring station. Fails NFPA 72 inspection. Chicago Fire Department can issue violation notice.
- Elevator emergency phones — every cab goes dead. Fails state elevator inspection. Chicago's high-rises have 6–20+ cabs each.
- Security alarm — building goes unmonitored. Insurance implications.
- Building entry and gate — intercoms, callboxes, and parking systems go silent.
- Area of refuge phones — ADA-required stairwell phones. Chicago high-rises can have 30+ of these.
- Fax and POS — medical, legal, and financial services lose connectivity.
A Chicago high-rise with 12 POTS lines (6 elevators, fire panel, security, 4 refuge phones) paying $1,800–$6,000/month on copper drops to $360–$720/month on cellular. Annual savings: $17,000–$63,000.
What to do now
Step 1: Free copper audit
CopperAlerts identifies every POTS line in your Illinois building — fire alarm, elevator, security, entry, refuge phones, fax, and business phones.
Step 2: Solution matching
Certified cellular for life-safety. Cloud phone system for business voice. One proposal covering everything.
Step 3: Installation
Zero-downtime cutover. 30–60 minutes per line. Parallel operation before copper is cancelled.
Free copper audit for Illinois buildings
Find out exactly what you have, what it costs, and what you'll save.
Schedule free auditOr call 305-482-1121
Frequently asked questions
Is AT&T disconnecting copper lines in Illinois?
Yes. AT&T (formerly Ameritech/Illinois Bell) is the dominant carrier. Retirement notices cover Chicago, suburbs, Springfield, Rockford, Peoria, and statewide. New orders frozen October 2025, discontinuance targets November 2026.
Does CopperAlerts serve Illinois?
Yes. We serve commercial buildings across all of Illinois — Chicago, suburbs, downstate, and everywhere in between. Headquartered in Miami with nationwide capabilities.
Related resources
AT&T copper retirement in Ohio
AT&T copper retirement in Georgia
AT&T copper retirement in Texas
AT&T copper retirement in Florida
Who replaces copper lines for fire alarms, elevators & ATMs?