Multi account management setup with real devices

Hello

I'm attempting to run longterm Google + YouTube accounts at scale and need a good setup. I tried Multilogin + ISP proxies but was having issues with QR code verification and accounts getting deactivated.

I'm thinking to buy real mobile devices (cheap old phones) for each account and using local SIM providers for the IP. From what I understand, multiple devices share IPs with mobile networks, so even if all devices are using the same SIM provider they can't necessarily be crosslinked.

Would this setup be suitable for my use case or is there something else to consider?

Appreciate any advice
Hi, using real phones with mobile SIMs can help, but Google still flags accounts for unusual patterns. Make sure each account behaves naturally—automation or repeated behavior can still cause deactivations.
 
But if he’s trying to scale, it would be impossible to do this with physical phones, right?
Yes, scaling with physical phones becomes a major logistical hurdle. Managing hundreds of individual devices is impractical and expensive.

For true scalability, the most effective solution is a robust anti-detect browser like GoLogin or Dolphin{anty} paired with high-quality, sticky residential proxies. This setup mimics the unique device and IP fingerprint of your physical phone method, but allows you to manage countless accounts from a single computer.
 
I think that using real devices won't cause any problems. But it's still not as convenient as an anti-detection browser. Many account registrars currently have problems with Gmail.

Good proxies and cookie farming can solve this problem. We use Linken Sphere, but multi-login should also be able to handle this.

In any case, the market will adapt, and it will be possible to continue working in antidetect with a minimum number of real devices.
Yeah, that’s true. Real devices help, but they’re not a magic fix. From what I’ve seen, problems usually start when multiple accounts behave too similarly. Even with good proxies or cookies, doing the same things at the same times can draw attention. Mixing things up and keeping activity less predictable usually works better.
 
Don’t use cheap phones/SIM tricks instead use Brand Accounts/Google Workspace, manage channels with YouTube Studio/API, and secure each account with unique recovery info + 2‑factor auth.
What's wrong with cheap phones? I have small operation with 40+ old phones (brand & model varies - no more than 2 phones the same) and they are running just fine.
 
No setup can reliably avoid Google linking or bans. Devices, SIMs, and proxies don’t fix trust issues. Long-term stability comes from using Brand Accounts, proper permissions, and policy-compliant usage, not hardware/IP tricks.
 
Hello

I'm attempting to run longterm Google + YouTube accounts at scale and need a good setup. I tried Multilogin + ISP proxies but was having issues with QR code verification and accounts getting deactivated.

I'm thinking to buy real mobile devices (cheap old phones) for each account and using local SIM providers for the IP. From what I understand, multiple devices share IPs with mobile networks, so even if all devices are using the same SIM provider they can't necessarily be crosslinked.

Would this setup be suitable for my use case or is there something else to consider?

Appreciate any advice
Yes, you can use local SIM providers for the IP or find high quality 4g mobile proxies.
 
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