Unlock guide
A Google Pixel 4a is locked the same way any Google handset is: the carrier that sold it holds a record against the IMEI, and the device refuses every other SIM until that record changes. This page shows how the model is identified in the TAC register, what kind of lock it uses, and which of our services apply.
The TAC — the first eight digits of the IMEI — is how the register knows which model a handset is, and it is what every unlock and warranty service actually queries. Our register holds 14 TAC ranges under this model name:
| TAC prefix | Look it up |
|---|---|
35695510 | run the lookup |
35924010 | run the lookup |
35924110 | run the lookup |
35924210 | run the lookup |
35751210 | run the lookup |
35751310 | run the lookup |
Dial *#06# to read the IMEI, then compare the first eight digits. Not listed? The lookup will still resolve the model if the range is filed under a different name.
The register dates this model to 2020, which decides how it is locked: handsets of that generation and market follow the rules described below.
Pixel handsets are locked by the carrier that sold them, not by Google. A Pixel bought from the Google Store is already unlocked; one sold by Verizon, AT&T or a carrier in another country carries that operator's activation policy.
On a Google Pixel 4a the practical test is simple: insert a SIM from a different network. If the phone asks for a code, it is code-locked. If it refuses with “SIM Not Supported” or a carrier-lock notice, it is server-side locked and has to be released against the IMEI. If it just works, it is already unlocked.
| Service | Price | Type |
|---|---|---|
| eSIM EID Pro Checker Apple/Sumsung/Google Pixel etc. No Refund | $0.05 | eSIM / EID |
| US AT&T Blacklist Check - iPhone & Generic | $0.05 | Blacklist |
| Google Pixel Initial Carrier + Warranty Check | $0.06 | Warranty |
| T-Mobile | Sprint | Metro| Cellular Fully Paid Eligiblity Check | $0.07 | carrier unlock |
| Spectrum Unlock Eligibility Check - iPhone & Generic | $0.07 | Model / TAC |
| US AT&T Unlockl Check Pro -「Charge No Matter Unlocked or Not」 | $0.07 | carrier unlock |
Brand-level services from $0.05 – $0.07. The carrier-specific tier is on the carrier guide and on each service page.
Unlock prices depend on the carrier and the model generation, so the same handset costs different amounts depending on who sold it. These are the carriers we hold a service for:
TAC data from the register we query for /tac. Last updated 2026-10-28.