AT&T has begun discontinuing legacy copper phone services known as Business Access Lines (POTS) across hundreds of wire centers in the United States.
Businesses still using these traditional copper phone lines will need to migrate to modern voice solutions before the final shutdown deadlines.
AT&T POTS Line Shutdown Timeline
| Group | Notification Sent | Service Discontinuation |
|---|---|---|
| D1 Wire Centers | June 2025 | June 30, 2026 |
| D2 Wire Centers | November 14, 2025 | November 15, 2026 |
Customers receive approximately 12 months after notification to migrate their services before disconnection.
Replacement Services for POTS Lines
AT&T recommends migrating legacy copper phone lines to modern business voice solutions.
- AT&T Phone for Business – Advanced
- AT&T Business Voice
- AT&T Office @ Hand
- IP Flexible Reach
Availability depends on location and business requirements.
What Businesses Should Do Now
If your company still relies on traditional copper phone lines, now is the time to evaluate replacement options.
- Identify all active POTS lines
- Determine which services depend on those lines
- Select the best migration option
- Plan installation and transition before the shutdown deadline
Businesses that wait until the last minute may face service interruptions as legacy infrastructure is retired.
Need help replacing AT&T POTS lines?
I help businesses migrate from legacy copper phone systems to modern AT&T voice solutions nationwide.










