This number is related to a market research survey.
Sifo survey calls – how to stop the annoyance!
Summary — +4645728005
Expert Opinion
Clearly, these calls are most likely from a market research firm conducting surveys. Recipients report frequent, often daily, attempts to reach them for opinion polls, typically identified as Sifo or TNS Sifo. While such research is legitimate, the volume can become intrusive. Block the number on your handset and consider adding it to any national do‑not‑call registry. Request that Sifo place your details on their internal suppression list for a minimum of ten years, as some users have successfully done. Remain cautious of any unexpected requests for personal data or payments, as genuine surveys will never ask for money. Register your preference and keep a log of unwanted calls to help future complaints.
Caller Categories
Caller Names
Rate this number — +4645728005
Recent Reports for 0457-280 05
Repeated calls from this number, always hanging up after three rings, extremely frustrating
Mig har blivit uppringd två gånger av det här numret idag, vilket fick mig att känna mig oroad och frågande vem som ringde, men nu har jag insett att det rör sig om reklamsamtal, jag är för övrigt inte ens 14 år gammal och de borde i så fall ringa mina föräldrar!
Simply tell them you're not interested in the survey and they'll stop calling - it's that simple
Evening calls are common, sometimes daily for weeks, followed by periods of silence before restarting; despite never answering, this has been ongoing for about a year.
It is astonishing that they continue to call multiple times a day without getting an answer, showing a remarkable persistence
Det var intressant att delta i undersökningen, men samtalet var kort och ytliga.
4645728005
Survey
Despite my reluctance to engage, the caller persisted. It's becoming tiresome.
The calls are made at inconvenient times and ring for an excessively long period, it should be stopped
There was no response to the call
Repeated calls everyday is geting anoying maybee its time to ask them to stop
There have been almost 50 calls from this number in a two week period alredy.
There has been a daily call for the past week
Jag svarade inte eftersom numret var okänd, och det visade sig vara Sifo. Trots att jag är registrerad i Nix, verkar det inte spela någon roll
Sifo ringde och presenterade sig snabbt – professionellt men kort.
It's unclear how they obtained my phone number; perhaps it's only used for sales purposes, but I'm skeptical
Despite being disconnected, they still call my landline
Okänt samtal, men ingen anledning att klaga på kvaliteten.
4645728005
Unknown
This number has rung three times today, most recently at 20:30. I've added it to my blocklist, so they can't bother me anymore. Worse than Jehovah's Witnesses at the door!
Daily calls, twice a day after 8, but this app blocks them immediately so they can keep trying all they want
Dont bother answering!
SIFO ringde, men jag fick ingen konversation – inga synpunkter att ge.
For the sake of heavens stop calling me, im not interessted
For gods sake stop calling me...
After installing the TrueCaller app, I received two different types of sales calls - coincidence or does TrueCaller sell phone numbers?
No response was given, and the number will be added to the block list
Okänt nummer ringde, ingen vidare konversation.
They continiue to call, stop this nonsence, my trust in Sifo is lower then 0, thats a fact!
They have rang 18 times in a short period. They usualy call on thursday evenings and weekends. I have asked them to stop botherig me, but they continiue to call, aparently for a radio habbits survey.
It's baffling how Sifo, supposedly conducting a study using data from Spar, managed to obtain my private mobile number, which I've never shared with any companies or unknown parties
Different formats
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Same category: Unknown
