Wireless Usage Alerts: How Carriers Warn You Before Bill Shock
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How we wrote this: A plain-English summary of the Federal Communications Commission's consumer guidance on bill shock and wireless usage alerts, checked October 29, 2026. The alerts are a voluntary industry commitment, not an FCC rule.
What the alerts are
In 2011, the major U.S. wireless carriers agreed to add usage alerts to the voluntary Consumer Code for Wireless Service, sponsored by the trade group CTIA. The FCC says about 97% of wireless customers are covered.
Participating carriers committed to send alerts:
- when you approach and when you exceed your plan's allowances for voice, data or texts, if going over means extra charges;
- when your phone registers abroad and you have no international roaming plan, so you may face roaming charges.
The alerts are free and automatic. You don't have to sign up.
What to do when one arrives
- Check your plan's limits and what an overage costs.
- For data, switch to Wi-Fi or pause heavy apps until the cycle resets.
- Abroad, ask your carrier about a travel plan right away; see international roaming.
For a small business
- Make sure alerts go to someone who can act on them, not just to the employee's phone.
- Review shared or pooled plans each month.
- If a line keeps hitting overages, compare plans.
- Check bills for charges you didn't authorize; see cramming.
Related: FCC broadband labels, unlocking a phone.