London Daily

Focus on the big picture.
Saturday, Mar 14, 2026

How brands get your phone number and call after they see you on their website

How brands get your phone number and call after they see you on their website

Brands can use technology to see who is browsing their websites, and can use data collected on consumers to email or call them to try to complete a sale. Consumers, confused how this is happening, have taken to Twitter to complain about it. Users have privacy tools at their disposal to try to limit tracking.

Dave Kerpen was hoping prices would drop on some expensive tickets for a late-September New York Mets game. He kept checking the prices to no avail.

At one point, he checked his StubHub app and added the tickets to his cart. He decided not to buy just then, and closed the app.

Almost right away, he got a phone call. It was StubHub, telling him he could get a 5% discount for the tickets if he bought them immediately over the phone.

“It was surprising because I didn’t even realize they had my phone number,” Kerpen, an author and entrepreneur, told CNBC. “If it startled me, it probably startled most people.”

Creepiness aside, Kerpens said he was disappointed in the meek 5% discount offer and didn’t buy the tickets, but added “it probably works part of the time or they wouldn’t be doing it.”

A StubHub spokeswoman said the company began doing this more than three years ago “for select events” to help consumers with factors like the best seat or the best day to attend an event. She said the practice is to first reach out by email then follow up by phone. Kerpen said he had not received an email.

“When consumers are considering a high cost purchase, there is a desire for a more personal touch, which can give them greater confidence,” StubHub wrote in an emailed statement.

It’s not surprising that a big internet company -StubHub is owned by eBay -would track consumer activity on the web. That’s how brands target users with such increasing precision and how data collection firms build comprehensive profiles that can help advertisers get the messages to the right people at the right time.

But after several years of high-profile scandals over how big internet companies like Facebook collect and use data from users, consumers are paying a lot more attention -especially if they’re not sure how a website got their number.

Last week, comedy writer Ariel Dumas wrote on Twitter that she received a phone call from furniture retailer Wayfair while browsing its website. She wasn’t happy about it.


A Wayfair spokeswoman told CNBC in an emailed statement that the company recently started testing outbound calls to less than 1% of customers “to assist them in the shopping process.”

“We do not make any outbound phone calls based on real-time site activity,” the representative said. “In all cases, customers receive an introductory email from the team prior to any phone outreach.”

Critics have also taken to Twitter to criticize T-Mobile, ePromos, Staples and Liberty Mutual for what they claim is similar behavior. ePromos and Staples didn’t respond to a request for comment. Liberty Mutual did not provide a comment as of press time. T-Mobile declined to comment on the record.


How it happens


Though it may not be clear on the surface for consumers, the practice of figuring out the identity of an online customer, or connecting that person’s behavior to their other online behaviors, is pervasive.

Here’s how it can happen.

1. Many websites work with technologies that help them collect and connect consumer behavior across devices.

There are a bunch of technology companies that specialize in tracking consumer behavior online and in the real world, across different devices.

Wayfair appears to use services from at least one such company, Neustar, which describes itself as a tech company that provides real-time information and analytics for different industries, including marketing. The company says it helps clients know “everything they can about their customers and prospects.”

Wayfair has code from Neustar directly on its website, signifying a direct relationship, according to Ratko Vidakovic, founder and principal of ad tech consultancy AdProfs. It wasn’t clear if the retailer used Neustar in the example the Wayfair visitor tweeted about, though. Neustar initially declined to comment, but after this story’s publication a spokesperson said the company works with Wayfair on the fraud, risk and compliance side. He said unless a person on Wayfair’s website was an existing customer and they authenticated on the website with some form of personal information, Neustar wouldn’t have been involved in this type of experience.

Consumers can turn to a Chrome extension called Ghostery to see what other kinds of tracking technologies sites are using, and block them if desired. Ghostery shows that Wayfair also works with a number of other third-party trackers from providers including retargeting company Criteo and IBM’s analytics company Tealeaf. It also lists so-called trackers from tech giants like Google, Facebook, Snapchat, Microsoft’s LinkedIn and more.

(The practice is not limited to retailers, by the way. Publishers including CNBC use dozens, if not hundreds, of trackers too. For instance, CNBC uses one called Bounce Exchange, whose website says its technology identifies 40% of a site’s anonymous traffic across all their devices and sessions, and Parse.ly to help track traffic to stories.)

2. At some point, the shopper probably entered his phone number into an online form. If that form was on a website that included a tracker, it may have been collected there.

Jeremy Tillman, president and head of product and marketing at Ghostery, said if a consumer has ever added their phone number into a form and there was a tracker on that web page looking for that information, that phone number can be added to a person’s “profile” for those companies collecting that information.

Some companies also aggregate publicly available information to add to these types of profiles.

3. Companies can use technology to figure out when a consumer is on their site, and map it to a phone number already collected.

It isn’t difficult for companies to know who is on their website as they’re browsing -- especially, like in the StubHub example, if the person has identified themselves and put tickets in a shopping cart.

Companies like Neustar along with identity resolution companies LiveRamp and Tapad have the kind of data to map a user, whether they’re anonymous or logged-in, to a phone number, Vidakovic said.

Some companies like Lead Forensics can even provide the names, email addresses and phone numbers of visitors to web sites in real-time.


Creepy or convenient?


Bryan Forbes, a vice president of strategic planning at IN Connected Marketing, said consumers aren’t fully aware of how many methods brands are using online to encourage them to shop.

“The last thing a brand wants to do is scare and turn someone off because they come across as creepy,” he said in an email. But the ways brands can use technology to track people and their behaviors is only getting more sophisticated. As a result, he said there will probably be an increase in “real-time” reach outs based on website browsing under the guise of assisting in the shopping process, despite this risking consumer trust.


“If this become pervasive, what will the consumer [and] shopper backlash be?”

Kerpen, who received the phone call from StubHub, said the company might consider texting consumers before calling. He said bot-delivered texts could probably be cheaper, and might be less intrusive feeling for consumers.

Also, he said if StubHub is going to call, it could at least call with a better deal.

Newsletter

Related Articles

0:00
0:00
Close
Middle East War Highlights Strategic Importance of Strong UK–Ireland Cooperation
Weak Growth Signals UK Economy Was Faltering Even Before Middle East Energy Shock
Marks & Spencer Tops UK Fashion Retail Rankings as Most Considered Brand
United States Launches Trade Investigation Into Allies Over Forced Labour Practices
United States Launches Trade Investigation Into Allies Over Forced Labour Practices
Russia Accuses Britain Over Storm Shadow Strike as London Reaffirms Ukraine’s Right to Self-Defence
Russia Accuses Britain Over Storm Shadow Strike as London Reaffirms Ukraine’s Right to Self-Defence
Royal Navy to Acquire Twenty Uncrewed Surface Vessels for Autonomous Warfare Testing
Russia Summons British and French Envoys After Ukrainian Storm Shadow Strike on Strategic Facility
Starmer Confirms Britain Will Maintain Sanctions on Russia Despite U.S. Policy Shift
UK Moves to Refine AI Definition in Investment Security Reform
UK Economy Stalls in January as Growth Unexpectedly Falls to Zero
Asian Energy Security Tested as Strait of Hormuz Disruption Threatens Oil Supplies
Iran Sets Three Conditions for Ending Regional War as Diplomatic Efforts Intensify
Tesla Secures Approval to Supply Electricity Directly to Homes Across Britain
Prince William Delivers Tribute to Australia’s Naval Alliance Amid Renewed Royal Spotlight on the Country
UK Foreign Secretary Travels to Saudi Arabia to Reinforce Support for Regional Allies
Putin’s ‘Hidden Hand’ May Be Assisting Iran in Conflict With Trump, UK Defence Secretary Warns
UK Sets April Deadline for Tech Platforms to Strengthen Online Protections for Children
Elon Musk Moves Into Britain’s Energy Market as Tesla Wins Licence to Supply Power
UK Watchdog Warns Fuel Retailers Against Profiteering Amid Iran War Price Surge
Report Claims Iran Used UK Charity Network to Expand Influence
United States and United Kingdom Establish Joint Standards for Counter-Drone Technology
Iran May Be Laying Naval Mines in Strait of Hormuz, UK Warns Amid Escalating Gulf Tensions
US Deploys Bunker-Buster Bombs to UK Airbase as Iran Conflict Intensifies
British Troops in Iraq Intercept Iranian Drones Targeting Coalition Base
Release of Mandelson Files Raises Tensions as UK Seeks Stable Relations With Donald Trump
UK Documents Reveal Starmer Was Warned About Mandelson’s Epstein Links Before Ambassador Appointment
Nearly Five Hundred UK Mortgage Deals Withdrawn in Two Days as Market Volatility Forces Lenders to Reprice
Three Cargo Ships Hit Near Iran as Attacks Spread to Strategic Strait of Hormuz
Why British Police Repeatedly Declined to Investigate Jeffrey Epstein’s UK Links
UK Parliament Ends Hereditary Seats in House of Lords, Closing Chapter on Centuries of Aristocratic Lawmaking
EU and UK Urge Israel to Act Against Rising West Bank Settler Violence Amid Regional Tensions
US Senator John Kennedy Says Keir Starmer Should Not Be Trusted for Military Advice Amid Iran War Debate
UK High Court Rejects Attempt to Revive Terrorism Charge Against Kneecap Rapper
Revolut Secures Full UK Banking Licence After Multi-Year Regulatory Wait
Kentucky’s Bench Boost Powers Wildcats Past LSU in SEC Tournament Opener
British Couple Die After Being Pulled From Water at Australian Beach During Family Visit
Global Energy Agency Announces Record Release of 400 Million Barrels to Stabilize Oil Markets Amid Hormuz Disruption
British Airways Suspends UK Repatriation Flights as Middle East Travel Disruption Deepens
US Forces Prepare Ordnance at RAF Fairford as Strategic Bombers Deploy for Middle East Operations
Nigel Farage Faces Criticism After Saying Britain Should Stay Out of Iran War
Landmark UK Trial Begins Over Sony’s PlayStation Store Pricing
UK High Court Rejects Bid to Challenge Britain’s Chagos Islands Agreement With Mauritius
Finnish Duo Triumphs in England’s Annual Wife-Carrying Race, Winning a Barrel of Ale
How U.S. and UK National Security Strategies Are Reshaping the Global Business Landscape
Green Party Gains Momentum as Labour Shifts Toward the Political Centre
Royal Navy Destroyer HMS Dragon Sets Sail for Eastern Mediterranean as Regional Tensions Rise
UK Homebuilder Persimmon Warns Iran Conflict Could Dent Property Buyer Confidence
Roman Abramovich Signals Legal Fight if UK Seeks to Seize Chelsea Sale Funds
×