8558055486

Whois info on that domain.  Looks like it is out of Germany:

citycards.comUpdated 1 second ago
Domain Information
Domain:
citycards.com
Registrar:
Vautron Rechenzentrum AG
Registration Date:
1998-08-09
Expiration Date:
2017-08-08
Updated Date:
2016-11-14
Status:
ok
Name Servers:
ns.phade.de
ns3.phade.de
Registrant Contact
Name:
Jan Buehler
Organization:
Verband der Gratispostkartenverlage e.V.
Street:
August-Bebel-Strasse 87
City:
Mannheim
Postal Code:
68199
Country:
DE
Phone:
+49.6218321323
Fax:
+49.6218321323
Email:
email@citycards.de

This is the Costco auto dialer. If you have a Citi Bank credit card and in my case, didn't realize my membership fee went on to this card and thus didn't know I owed Citi Bank money, this number will be calling you. I went on Citi Banks website and confirmed the number with their support after I paid off my bill (they kindly waived one of the late fees). I don't know if they use this number for other types of calls. I don't see how it is also being reported as a scam call but if in doubt go to the source.

Thought the same thing. And have to admit, getting asked for full CC number when you call is off putting. But it seems legit, and I went directly to source (Citi Bank) via their website and it turned out I owed money I didn't know about.

Keep in mind, just because the number is legit, doesn't mean the caller is!

Scammers spoof legitimate numbers to trick people into a false sense of security to answer their calls and attempt to get money or personal information from you.
This is why no one will encourage others to report of legitimate numbers, as they only confuse people into believing it is a legit call when a scammer has called them and they come here to find out about the call.

If it is a legitimate call, then anyone receiving a call would know WHY they got a call from this number, right?
So what would be a reason to come and post about it to a site designed to share information about UNKNOWN callers, such as Telemarketers, Scammers and Debt Collectors?

If your call was legit,  telling about it won't  be any comfort to those who may get a spoofed call from some scammer!

Costco doesn't just charge your card when it's time to renew your membership.

called my cell phone 8 times, stated they were Costco Citi Card and I needed to call them to clarify my account status immediately. I called both Costco and Citi Card was able to verify this is NOT any of their phone numbers.  Both Citi Card and Costco were extremely helpful in looking through every directory they have to see if this was a either an old or new number and they don't have it at all.  855 is the toll free starter number for Citi but the rest is a SCAM.

A man with an Indian accent left a massage that he we calling about our Citi bank credit card. THIS IS A SCAM!!! Costco's service is 1-800-955-2292. If there was a problem with your credit card, Citi Bank would be the business calling you.

I initiated a secure msg in my acct service with Costco Citibank visa and they replied for me to call this number. so it is a legit number for Citibank Costco.

I just started receiving calls (October 2017) asking me to visit the citicards.com website.  Not doing it.  It's a guy with a british or scottish sounding voice.  It's definitely a scam!

They called me to renew my costco  card 2 times and I have not called back...

Continue to call even though I blocked the # 855-805-5486. It doesn't even register a call even coming through it goes directly to voicemail. It states it's a citibank bank card for Cosco.It's a scam. They don't even use their real # or the call wouldn't keep coming through since I blocked it on my phone.

Saying Citibank and about Costco card. I called Citibank and this is a fraud number. Received about 5 foreign same voice messages I delete

i did not answer. The number on my phone is 904-525-8137 which is valid Citi Costco Visa.  The message was for me to call 855-805-5486 regarding my card.  I called the valid Citi Costco number and was told there was no record of anyone from Citi Costco calling me. Fraud.

I got a voicemail from a man with Indian accent to go www.citicard.com or call this number to check my Costco card.  I did not call back.

Unintelligble caller name, identified calling from Citi Bank regarding some unintelligble reason on my credit card. Left message and number 855-805-5486 (said so rapidly I had to repeat the message 5 times just to get the phone number, and never could distinguish caller name or reason for concern). Did not return call. Called ID showed 904-525-8137 originating in Jacksonville, FL

Multiple calls claiming to be about a Costco Citibank visa. I haven't been a Costco member for over a decade. On another website it was like some Costco marketing attempt but the bulk seems to be fraud. Haven't called back. It keeps coming thru though block, multiple numbers including 8776898623 and says to call 8558055486 back