On Google PlayTools & apps

Area Shield

Block spam calls by area code. Private, simple and on-device.

Area Shield on three Android phones: the Protection Rules list, the home screen with protection active, and the audit log of allowed and blocked calls

Screens are from the app's Google Play listing. The call log shows example numbers from the 555-01xx range set aside for fiction.

Why it matters

Area Shield uses Android's call-screening role to decide, on the device, which calls ring. It began as a one-day experiment that blocked a single state, and grew into a full app with presets, lists, diagnostics and a free trial.

01
Block by state or area code
Pick a state preset or individual area codes, and calls from them stop ringing.
02
Contacts always get through
People in your contacts ring through whatever the rules say.
03
Nothing leaves the phone
Screening happens on the device. Contact lookups and the call log stay local.

The details

Open any part for the full story.

Features5

State presets with per-area-code control, shown on a map of the US.
Contacts always ring through.
Optional blocking for unknown callers and private numbers.
Always-block and always-allow lists, and a local log of screened calls.
Rules export and import, plus onboarding and diagnostics screens.

How it works

A small rule engine sets priority, so allow lists and contacts always beat block rules.
Built on Android's CallScreeningService, so the app never needs to read or record calls.

Technology