Facebook Registration Problems – IP, Email, or Device?

[back4ever]

Hi everyone,


I have a question about Facebook registration. Lately it seems almost impossible to create a new Facebook account normally.


What are the main reasons for this?
Is it related to the IP address, the email address, the device/browser fingerprint, or something else?


For example:

• IP being flagged (VPN, shared networks, dynamic IPs)
• Email provider being blocked or marked as suspicious
• Phone number requirements
• Cookies / browser history / device ID
• Too many registration attempts

I’d really like to understand what Facebook mainly checks and what usually causes registrations to fail or get blocked instantly.


Thanks in advance for any explanations!

 

[BreeLik]

Multiple reasons but most of the time it's the IP or browser/cookie history. Use an anti detect browser and 4G proxies.

 

[back4ever]

I just tried it with AdsPower without a proxy and it worked perfectly. Now I’m curious if it will last for a few days and not get blocked later. I also partially filled out the profile, liked some posts, sent group join requests, and sent friend requests.

 

[Nikolaos]

I just tried it with AdsPower without a proxy and it worked perfectly. Now I’m curious if it will last for a few days and not get blocked later. I also partially filled out the profile, liked some posts, sent group join requests, and sent friend requests.

You will probably get banned again as the IP of your account/accounts is one of the things that Facebook checks first. I believe your accounts will last a few days though.

 

[Proxy Cake]

It can be any of those, but phone and IP seem to get flagged the most lately.

 

[ChillBuddy]

From what I’ve seen, Facebook mainly flags device fingerprint and IP first, then looks at phone or email trust if any signal looks risky, new accounts get blocked fast.

 

[Tino Meta]

Check your IP address; it may have been detected or flagged.

 

[magixori]

Yeah, you’re not the only one noticing this. Creating a new Facebook account has definitely become much harder lately.

From what I’ve seen, it’s rarely just one single reason. Facebook looks at a combination of signals, not just IP or email alone.

IP is a big one , especially if it’s a VPN, proxy, or a shared network that’s been abused before. But even with a “clean” IP, you can still get blocked if the device fingerprint looks suspicious or if too many accounts were previously created from the same browser/device.

Email provider matters too. Some low-quality or temporary email services get flagged instantly. Same with phone numbers, if the number was used before or is tied to restricted accounts, that’s a red flag.

They also track behavior during signup. If it looks automated, too fast, or unnatural, that can trigger a block right away.

So it’s really more about the overall trust score of your environment rather than one specific factor. If multiple small risks stack together, the system just shuts it down.

 

[theusualkeysersoze]

Yeah, you’re not the only one noticing this. Creating a new Facebook account has definitely become much harder lately.

From what I’ve seen, it’s rarely just one single reason. Facebook looks at a combination of signals, not just IP or email alone.

IP is a big one , especially if it’s a VPN, proxy, or a shared network that’s been abused before. But even with a “clean” IP, you can still get blocked if the device fingerprint looks suspicious or if too many accounts were previously created from the same browser/device.

Email provider matters too. Some low-quality or temporary email services get flagged instantly. Same with phone numbers, if the number was used before or is tied to restricted accounts, that’s a red flag.

They also track behavior during signup. If it looks automated, too fast, or unnatural, that can trigger a block right away.

So it’s really more about the overall trust score of your environment rather than one specific factor. If multiple small risks stack together, the system just shuts it down.

Yeah, this , more or less.

People also set up their anti detect browsers wrong, leaking ips, use mobile emulators where the only good thing is the mobile ip, zero device attestation provided etc.

And all the residential proxies out there have been seen there before, the 1hr ip rotation times are destroying everything.

You can get away emulating windows with a clean static isp if the subnet is clean, but often they're not, or not for long.

Email providers have various levels of trust and if you use voip sms then it only gets worse.

It's an accumulation of signals, usually not just one. If suspicious they say open the account by installing the app, because that way, they give legit users a chance and they'll get all the insight the could wish for.

 

[Sarcasti Cat]

fb tracks everything now, best way is to use a clean mobile ip and the app instead of desktop.

 

[Noona Agency]

Facebook checks several factors such as IP reputation, email quality, and signs of unusual registration; if suspicious, the system will block the account. To avoid problems, maintain transparency and accuracy in your advertising.

 

[hossen10]

Your IP or phone is flagged from facebook.
contact your isp for change your ip.

 

[t06p0un0]

Use mobile proxy with rotation and unlimited traffic + Linken Sphere, Adspower or another antidetect browser. Mail does not matter. What is more important is the account activity.

 

[NAM AGENCY]

Facebook primarily checks three main groups during registration:
– IP & Network: Whether the IP address has been reported for spam, whether a VPN/data center has been used, or if multiple accounts have been created previously.
– Device/Fingerprint: The device, browser, cookies, and device ID previously associated with the blocked account.
– Verification Information: Junk email addresses, fake phone numbers, or numbers that have been used repeatedly.
Accounts are usually blocked immediately when the system detects a combination of risk factors simultaneously, not just a single factor.

 

[Marco69]

From what I’ve seen, Facebook mainly flags device fingerprint and IP first, then looks at phone or email trust if any signal looks risky, new accounts get blocked fast.

Not make sense that FB flags the IP address you got from your telecommunication provider, these ip's are clean.

 

[evebeatot]

In my opinion, IP addresses and phone numbers are the most common causes.

 

[anonymousPablo]

Nowadays, almost no one builds from scratch; everyone buys. They are usually inexpensive, already warmed up, and unlocked. I recommend just buying one.

 

[megakim]

Main issue is device fingerprint and behavior not just IP. If you create many accounts from same browser setup they link them fast.
Phone verify and clean history helps but patterns still kill most fresh regs.

 

[Imelda_99]

Facebook typically evaluates a wide range of factors, including IP address reliability, email quality, and registration behavior. If it detects any signs of risk, the system may restrict or block the account. Therefore, the safest approach is to use verified information and maintain transparency, adhering to policies from the outset.

 

[Marco69]

In my opinion, IP addresses and phone numbers are the most common causes.

How can these be red flags if you got them form your Telecommunicaiton provider?