American Express spoof call—what to watch out for! - +1 866-379-3643 ((866) 379-3643)

Summary — +18663793643

Untrustworthy
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.

Caller Categories

Scam
35×
Financial
21×
Customer Service
15×
Company
Unknown

Caller Names

American Express
26×
AMEX
12×
Amex (claimed)
American Express (claimed)
Scam

Details

Location: United States
Number type: ratings.phone_number_type_list.3

Rate this number — +18663793643

Recent Reports for (866) 379-3643

18663793643 Scam AMEX scam

Several calls from this line left voicemails claiming to be American Express, asking to verify a request and providing a PIN, though I never initiated any AMEX transaction—clearly a phishing scam.

18663793643 Scam American Express (claimed)

Impersonation of American Express has been reported, with callers pretending to represent the company.

18663793643 Unknown Said they were Wellcare

The call was not answered, but the voice mail message claimed to be from Wellcare, which was later verified as not being one of their official numbers.

18663793643 Harassment Call AMEX scam

This number is used for an Amex application verification scam, where scammers impersonate American Express representatives.

18663793643 Financial Anonymous

Verification call regarding an American Express application

18663793643 Scam Amex (claimed)

It's puzzling why they call my phones almost daily without leaving any messages, a behavior that's been ongoing for over three months, and upon callback, they requested sensitive information like my SS number, which I find highly suspicious.

18663793643 Scam

According to American Express, this number and call are not affiliated with them.

18663793643 Scam 8663793643

Following two seperate calls, firstly from a individual with a thick Indian accent claiming to be from AmEx, sounding absolutly fake, and then a male caller with a similar tone, I imediatly confronted him about beeing a scammer and demanded they remove my number.

18663793643

Even if it's a legitimate phone number, it's possible that scammers are using it. The question remains, why would someone look up known numbers without a logical reason?

18663793643 Customer Service American Express

I didnt recognize the number, but it was actually amex, they were verifying my account info

18663793643 Scam

Call's were made to both my cell and home number saying it was a personal matter. The call back number is 1-800-567-1083. They answer American Express and then ask for your AmEx card number. These people have been calling me for a week now, claiming to be AmEx or hanging up. I called AmEx, who confirmed that they never called me and that AmEx does not reach out by calling it's customer's. I'm glad I contacted the real AmEx.

18663793643 Customer Service AMERICANEXPRESS

The caller claimed to be from AmEx customer service.

18663793643 Unknown American Express

American Express has stated that they will never request a customer's full social security number.

18663793643 Scam American Express (claimed)

Be cautious not to share your SSN; I contacted American Express, and they confirmed there were no issues with my account, so I canceled my cards and requested new ones.

18663793643 Scam Spam- pretending to be Amex

Some fake scammers are pretending to be from Amex, they somehow have informations about my account and even contacted a distant relative, asking about my application.

18663793643 Scam Amex (claimed)

This was definately a fake AMEX call, i've never had a Amex card.

18663793643

It's curious that you're looking up this number, as it's likely a call-back number, and yet nobody has mentioned that in the posts here dating back to 2007.

18663793643 Scam AMEX (fraud)

Beware of this number, it appears to be untrustworthy. For verification, I suggest contacting AMEX directly using a known good number to inquire if they have attempted to reach you. If you're not an AMEX customer, it's advisable to avoid returning this call.

18663793643 Financial American Express

I am uncertain whether this number is genuinely associated with American Express.

18663793643

Unfortunately, it's challenging to determine the callback number in question.

18663793643 Scam American Express (claimed)

The number that shows up on my phone is American Express, but the number they leave on the voicemail, if they leave one, is not, i have a american express card, and i called them to check, they said no one called me, but i still get calls from this guy!

18663793643 Scam Am Ex

This call was purportedly from American Express

18663793643 Scam American Express (fraud)

After experiencing repeated calls from this number, I contacted American Express, and they confirmed my suspicions of fraud, advising me never to respond to such calls.

18663793643 Spam

This is undoubtedly spam

18663793643 Financial American express

An automated message from American Express was received, stating that the call was regarding a personal matter and not a sales call, with a request to return the call during specified hours.

18663793643 Scam

Beware of this number, as it appears to be a scam with some users falsely claiming it to be legitimate.

18663793643 Scam American Express (scam)

This is definitly NOT an American Express phone number, it a scam

18663793643 Unknown

The term 'oh mega' is unclear, and it seems unnecessary to respond to an outdated post.

18663793643 Scam

Upon receiving a message, I was asked to provide sensitive information including my Social Security number, home address, and other personal details, with the caller appearing to be from India based on their accent and communication style.

18663793643 Debt Collector

This call has been identified as a scam, falsely claiming to be American Express.

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