# Call-forwarding help | BlockTheCalls.com

> Reference information about call forwarding while checking current carrier instructions directly before making a change to your phone line.

Canonical: https://blockthecalls.com/help/forwarding

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2.  Call-forwarding codes by carrier

# Call-forwarding codes by carrier

**iOS may treat an in-app tap that dials a forwarding code as potential malware.** Copy the code, open the Phone app yourself, paste it, and dial. Auto-dial from our app is optional and often blocked.

Published by [DCJP, LLC](/about), owned by CEO [Doc Compton](/about#doc-compton). Updated October 2, 2026.

These are your _carrier’s_ unconditional forward-all codes so inbound calls reach your Block The Calls number. Confirm against your carrier’s own support page if anything looks off. `{number}` is the 10-digit number we show in the app unless noted.

We are not a phone company. 911 and ordinary outbound calls stay on your native Phone app. After you dial, use **Test forwarding** in the app. We call _your_ number from our network. The app does not dial our number to “test.”

## United States

| Carrier | Turn on | Turn off | Notes |
| --- | --- | --- | --- |
| Verizon | `*72{number}` | `*73` | Dial \*72 immediately followed by the 10 digits, then Call. Two beeps. |
| AT&T | `*21*{number}#` | `#21#` | Include the #. |
| T-Mobile | `*21*{number}#` | `##21#` | Off is two hashes. |
| US Cellular | `*72` + leading 1 + number | `*720` | Example `*7214375551234`. |
| Google Fi | Fi app / fi.google.com | Fi app | No star codes. |
| Mint Mobile | `*21*{number}#` | `##21#` | Same as T-Mobile. |
| Metro by T-Mobile | `*21*{number}#` | `##21#` | Same as T-Mobile. |
| Cricket | `*21*{number}#` | `#21#` | Same as AT&T. |
| Boost Mobile | `*72{number}` | `*720` | Two beeps. Can vary by device. |
| Spectrum Mobile | `*72{number}` | `*73` | Same as Verizon. |
| Visible | `*72{number}` | `*73` | Same as Verizon. |

Source of these rows: the same carrier table the iOS app ships. If the app and this page disagree, the app build you are running wins. If something looks wrong, [tell us](/contact).

## Keep reading

  [### Apple, Google, and carrier tools: what they can and cannot do](/call-screening-options)  [### Caller ID spoofing and what STIR/SHAKEN can, and cannot, prove](/caller-id-spoofing-stir-shaken)  [### Apply to be a beta tester](/testers)

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