According to the rep, the number is associated with Amex's new accounts department, which confirms its legitimacy.
American Express spoof call—what to watch out for! - +1 866-379-3643 ((866) 379-3643)
Summary — +18663793643
Caller Name: American Express
Caller Type: Scam
Location: United States
Reviews: 96
Carrier: —, Region: —
Expert Opinion
Calls from 866‑379‑3643 often claim to be from American Express and request personal details. Most reports describe the number being used for phishing attempts that mimic legitimate application verification, asking for SSNs, DOBs, or account numbers. Even though a few callers say the line is authentic, the consensus points to spoofed IDs and a high risk of identity theft. If you receive such a call, hang up, independently verify the request using the official number on the back of your card, and never share personal info until you’re sure it’s a genuine Amex representative. Report suspicious calls to your card issuer and consider placing a fraud alert on your credit files.
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Caller Names
Details
Location: United States
Number type: ratings.phone_number_type_list.3
Rate this number — +18663793643
Recent Reports for (866) 379-3643
A man with a british accent, claiming to be from American Express, called me, asking for somone who doesnt live here, and when I told him, he apoligized and said he would remove our number from the list...
To verify the authenticity of the American Express number, I decided to contact their online support.
After speeking with the people at this number twice, i can confirm they are from American Express, they proces aplications and verify informations, i also spoke with their fraud departement and they verified the number as a legit new acount departement, they dont require you to give them persinal info, but they might request it, you can just refuse to give it to them, thats all
This is clearly a scam attempt.
It's crucial to approach posts here with skepticism since anonymity allows anyone, including scammers, to contribute; the best course of action is to contact the number on the back of your AMEX card, as I did, and they found no issues but reported the number to their fraud department.
After receiving a call from this number, the caller claimed to be from American Express, stating that a credit card application had been made, which was denied after verification, leading to the discovery of a potential fraud attempt and the placement of a fraud alert on credit reports
Although 866-379-3643 is a legitimate AMEX number, I was cautious when they asked for my SS#; after verifying the reference number, they informed me that someone had attempted to open a credit card account in my name, which I denied and they subsequently canceled.
It appears Amex's fraud department may have inconsistencies, as the caller's request for information seemed suspicious.
Verification from another Amex number confirmed that this is a legitimate number for their services.
This is a blatant scam, and it is essential to exercise caution and not provide any personal information, including date of birth, social security number, or other sensitive details.
When the agent called me from the 3643 number, they asked me to provide my social and DOB to verify an application I had submitted in the mail to Amex. But how do I know if somone who is not really Amex stoled my application in the mail and wants my info to committ fraud or identity theft? If you go to
After receiving a call and being asked for information, the caller provided this number, 866-379-3643, which I verified by checking the American Express website and contacting their customer service
This is undoubtedly a scam: the person with an Indian accent, claiming to be from American Express, had a beeping noise in the background, which supposedly was a recording device, but this was not disclosed at the start of the conversation, unlike what legitimate companies would do. The caller was looking for my daughter, who has not lived with us for 13 years, and allegedly she had contacted American Express, making a request that prompted the call. However, when asked if my daughter provided our number as the callback number, the caller stated that this information could not be disclosed. Interestingly, I am aware that my daughter has no affinity for American Express and would never approach them for an account.
This number is associated with a legitimate American Express department that protects cardmembers, and if you receive a call, it may indicate an application in your name, so it's recommended to return the call.
Be cautious if you receive a message from a credit card company regarding an application in your name; visit their website to obtain a legitimate contact number and reach out to them directly to verify the authenticity of the claim, as it could be a case of identity theft.
After applying for an American Express card, I received a call from this number. To verify its legitimacy, I recommend checking the American Express website for their customer service number, 800-528-4800, and contacting them to confirm. Just because the caller has an Indian accent does not necessarily mean it's a fraudulent call.
A call from 1-866-379-3643 is actually from American Express, which I recently applied to, and can be verified through their customer service number, 1-800-528-4800, on their website.
With a global workforce of over 70,000 employees, American Express's customer service department functions more like an operator switchboard, except when discussing general benefits or billing, at which point transfers are common; setting up an Interactive Voice Response system can be costly, suggesting this is not a scam.
A voicemail from a woman with an Indian accent prompted me to return the call, which initially seemed to be from American Express. However, after multiple attempts to decipher the message and subsequently researching the number online, I decided to contact American Express directly through their official number. The customer service representative confirmed that the original number was not affiliated with their company.
Testing this number by providing fictional information, such as a made-up SSN, yields a response regarding the status of a card, suggesting this is not a legitimate operation.
18663793643
Scam
This number is probably not even real, try calling it, then enter any old ssn, it dont matter, they will just tell you somthing about your card, its a scam, dont belive it
Interestingly, the individual they inquired about has not resided with me in over seven years
It's a scam with a indian accent, beware
Following my recent account setup with American Express, I received a verification call at home from this number
This number is legitimate, as I had applied for an American Express card and needed to verify my identity through a phone call, which was successfully completed with the help of a representative named Larry
Following a morning call from a woman speaking broken English, claiming to discuss a credit card application, it was advisable to contact AMEX's customer service directly, which confirmed an unauthorized application and suggested taking further action with credit reporting bureaus
The caller ID shows 602-766-6484 and leaves a number 1-866-379-3643 to call back, it seems legit, but if you're cautious and have requested a new account with AMEX, you should check your application status on their website, and after that, you can call the number they provide if you have further questions.
Repeated messages have been received from an individual claiming to be from American Express, inquiring about a new application that was never submitted; after verification with American Express, it appears to be a fraudulent attempt.
As an employee of Amex new accounts, I can confirm this number is legitimate
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Same caller name: American Express
Same category: Scam
