Here you can find all the major events in Tello’s life. Read all about its new products, websites, anniversaries, achievements and challenges.
2025
KeepCalling transitions to Tello
KeepCalling will rebrand all its operations as Tello - its most successful brand. Tello carries forward the same commitment to quality, affordability, and customer care, now under a unified identity.
2023
MobileSIM.com was launched
MobileSIM.com is KeepCalling's website that sells only Travel eSIMs.
The Travel eSIM product was launched
KeepCalling launches the Travel eSIM product, an innovative solution that offers customers affordable data packs when traveling abroad.
2022
The Gift Card product was launched
KeepCalling introduces a new product in the form of gift cards, which are available for a wide variety of products and services: music, gaming, video platforms, in-store or online shopping, car rides, etc.
CallingCards.com acquisition
KeepCalling continued its expansion on the international telecom market by acquiring another calling service, following the success of Pingo. CallingCards.com is now a KeepCalling brand.
Tello switches from CDMA to GSM
Tello completes the transition to a GSM network, offering a more accessible service, better coverage, and faster Internet speeds.
2021
Tello adds free international calls
US mobile provider Tello brings exciting news for its customers: free international calls. All Tello plans now include free calls to 60+ countries worldwide.
Pingo.com acquisition
KeepCalling purchased Pingo.com, an already established telecom website.
KeepCalling starts operations in India
The company expanded its operations by enlarging the Customer Support team with new hires in Kerala (India).
Tello goes GSM
Tello migrated from the CDMA network to the GSM network. The benefits for Tello customers are multiple: improved coverage, increased phone compatibility, Wi-Fi calling, and 5G.
2020
The money transfer service is launched
Starting June 2020, KeepCalling also offers the possibility of money transfer through SendMoney.com.
Tello turns 4
In only one year, Tello almost doubled its customer base.
Record sales month for KeepCalling
May 2020 marked a record month in terms of sales up to that point. The total sales registered by the company reached $6.7 million.
Tello reaches 100K subscribers
The big 100K active Tello lines came in April, 2000, right before Tello’s 4th anniversary.
2019
Tello turns 3!
Tello is the only MVNO in the US with a 5 star rating on Trustpilot
New office building in Sibiu
KeepCalling changed homes in Sibiu
2018
KeepCalling partenered with OvidiuRo for "Every child deserves a story" project
Through the KeepGiving foundation, KeepCalling donated over 11,000 books to kindergarten kids from Sibiu rural areas. Over 200 volunteers delivered the books, and also read stories to the kids.
KeepCalling, together with Sibiu City Hall, started a recycling campaign
KeepCallers are setting posters through town about recycling - why it's important and how it works.
2017
TopUp.com acquisition
KeepCalling adopted a new business model by purchasing an already established international telecom brand and tailoring its service to its own.
KeepCalling + ULBS = ❤️
In 2016-2017, KeepCalling's partnership for "Lucian Blaga" University of Sibiu meant more than just financial support. We also held workshops, presentations, and helped the Marketing students promote local touristic events.
KeepCalling is now 15
In June 2017 we celebrated KeepCalling's 15th anniversary with the traditional parties in all our 3 offices. Happy birthday once again, KC!
Tello turns 1!
Our newest project, Tello, celebrated its first anniversary. Just like in fairytales, Tello grew in 1 year as much as other projects grow in 10 and made us proud of working on such a successful idea.
HablaCuba app is launched
The newest app launched by KeepCalling enables HablaCuba customers to send mobile and internet top ups to Cuba, and is available for iOS and Android devices.
2016
The travel division's 2nd anniversary
Our travel division turned 2! In the meantime, the team grew by leaps and bounds.
KeepCalling renews its support for Sibiu university
KeepCalling paid the tuition fee for 23 Marketing freshmen and continued paying for the studies of the 2nd year students with an average above 8.
SendMoney.com is launched
KeepCalling launches a new website that offers mobile recharges, with the aim to introduce a money transfer service in the future.
KeepCalling embarks on a new project for OvidiuRo
KeepCalling donated 13,000 Euros to support the children enrolled in the OvidiuRo project. The money will ensure they have the needed school supplies for the entire school year.
The launch of Tello.com
One year after launching its first SIM service on the UK market, KeepCalling introduced Tello.com, a wireless service especially designed for US.
2015
Most top ups sent in one month
December 2015 was a milestone month for the Mobile Recharge product, with the highest number of top ups sent in one month.
The KeepGiving Foundation is founded
The foundation focuses on educational projects and social support.
KeepCalling makes Inc. 5000 for the 5th year in a row
In 2015, KeepCalling ranked #35 in the telecom companies list and was the 3rd fastest rising telecom company in Georgia.
KeepCalling supports the Marketing major in Sibiu, Romania
KeepCalling started supporting the local university in Sibiu by paying the tuition fee for 30 Marketing students.
100 KeepCalling employees
KeepCalling celebrated the milestone of 100 employees in all its offices: Romania, Bolivia, and US.
More than 45 mil. minutes connected
In March, the number of minutes connected in a month reached the 45 mil minutes milestone.
2014
Mobile Recharge app
The company launched Mobile Recharge app for Android and iOS, helping customers send credit to their friends and family’s mobiles
Travel division
KeepCalling expands its services, entering the travel market, with two websites: www.flying.com and www.onlycars.com
The launch of Tello.co.uk
KeepCalling offers a new telecom solution to people living in UK who want to keep a close relationship with families and friends at home: tello, a mobile SIM for national and international calls, texts and data.
KeepCalling ranks #885 on Inc. 5000 list
For the fourth year in a row, KeepCalling has been designated by Inc. 5000 as one of the fastest growing privately held companies in the US.
KC 12th Anniversary
KeepCalling turns 12! Even if 12 years have passed, our mission has remained the same: bringing people closer together by offering them the best long-distance telecom solutions.
3rd year of partnership: KeepCalling & Sibiu Theatre Festival
KeepCalling’s partnership with Sibiu International Theatre Festival in Romania reaches its 3rd year. This partnership is part of KeepCalling’s mission to support local communities and promote cultural values, since this festival is the largest theatre festival in Eastern Europe.
New version of KeepCalling app for iOS
Amazing layout and colors, adapted design for Iphone 5/5s screen size, bluetooth compatibility are the main features the new application introduces to its users.
3D secure – new security layer
Security of online transactions has always been a major concern for KeepCalling. This is why the company implements 3D secure on all KeepCalling websites, an additional security layer for online credit and debit card transactions.
2013
New design for all websites
All KeepCalling websites switch to a brand new design. The new user-friendly design makes KeepCalling services more accessible to its customers, by offering them a better and easier user experience.
Free Android app for calls & SMS
This new KeepCalling app enables customers to call or send SMSes to any international destination from their Android device. The new application is free of charge and can be downloaded anytime from Google Play.
KeepCalling ranks in Inc. 5000 for the third year in a row
KeepCalling is designated by Inc. 5000 as one of the fastest growing privately held companies in the US. KeepCalling makes it to the top 1000, ranking #919 with a sales increase of 478%, growing from $4.9 million in 2009 to $28.3 million in 2012.
“Bike or walk to work”
For the second summer in a row, KeepCalling launches “Bike to Work”, a charity program meant to offer children in Sibiu, Romania school supplies for the upcoming school year. “BIKE to Work” becomes “BIKE or WALK to work” and now it also rewards people who don’t own bikes, but are willing to leave their cars behind, walk to work and exercise in the meantime.
“KeepCalling & Habitat for Humanity”
Twelve KeepCalling employees are involved in a new Habitat for Humanity project to help build four houses for families in need. KeepCalling contributes with more than just work force: the company also donates $2000 which is used to buy construction materials and tools.
2,750 Euro donation to OvidiuRo
We believe early education deserves social and economical support. That's why we donate 2,750 Euro to OvidiuRo, a Romanian NGO running the successful program “Every Child in Preschool.” This is the third time KeepCalling and OvidiuRo join forces.
New office in Atlanta
The company opens a new office, in the US. KeepCalling is now physically present on three continents: Europe (Romania), South America (Bolivia) and North America (U.S)
11 years of on-growing online business
The company celebrates 11 years of quality service and relentlessly successful online business. For 11 years, KeepCalling has been providing telecommunications services worldwide, amounting nowadays to over 150,000 individual customers and businesses each month.
Second year of partnership with Sibiu International Theatre Festival
Since SIBFEST participants represent over 70 countries, and KeepCalling’s services address ethnic communities all over the world, the partnership between the company and the festival came naturally.
KeepCalling receives BBB Accreditation
KeepCalling announces its accreditation by the Better Business Bureau for its operation transparency and its good faith in handling consumer cases. The certification confirms KeepCalling as a legitimate and trustworthy company committed to customer service practices that enhance customer trust and confidence in business.
2012
First website focusing on mobile recharge only
MobileRecharge.com is the first website designed by KeepCalling targeted only on online mobile recharges, also known as mobile top up. The website comes as an affordable alternative for international mobile recharge, and introduces a fresh new design available both from PC and mobile.
$1,150 donation to World Vision
There’s no doubt that early education is an essential prerequisite for success in school. Therefore, KeepCalling donates $1,150 to the project “The Backpack Full of Dreams". Their goal: to donate 18,000 schoolbags to children in poor rural communities.
“Bike to Work” Charity Program
KeepCalling employees embark on a challenging social responsibility project: “Bike to Work” and help children go to school better equipped! During this period, the company donates $3/employee per each day an employee rides his/her bike to work. The amount raised is used to buy school supplies for 10 children with economic difficulties.
$3000 donated to “Every Child in Preschool”
KeepCalling and Ovidiu Ro join efforts for young children! A $3000 contribution went to Ovidiu Ro educational and social program “Every Child in Preschool.” Co-founded by Leslie Hawke, the organization believes that if children aren’t exposed to early learning opportunities by the age of six, it is then too late for them to catch up to their more affluent peers.
KeepCalling ranks #961 in Inc. 5000
KeepCalling ranks #961 with an increase of 335%, growing from $3.4 million in 2008 to $14.9 million in 2011.
10 years of KeepCalling!
Over 120,000 customers, over 22 million minutes connected monthly! A short summary of what KeepCalling means after 10 years.
KeepCalling app for iOS
KeepCalling launches a free, easy to use, time saving iOS application.
KeepCalling & FITS
KeepCalling partners up with Sibiu International Theatre Festival, deciding to sustain the festival and reinforce its motto: “Culture makes the difference.”
KeepCalling@ Let’s Do It, Romania!
KeepCalling embarks itself on a national clean-up project: Let’s do it Romania. The daring and courageous action aims to clean Romania in one single day event. KeepCalling committed to the joint effort and managed to collect 70 bags of garbage from a populated area near Sibiu, Romania.
5 million minutes in a week
The company connects more than 5 million minutes in a week. Normally it would take a person almost 10 years of continuous talking, 24 hours a day, 7 days a week to reach that number. “This is a great accomplishment for all of us and it shows that we can keep a fast pace in a competitive market” as KeepCalling’s president, Florin Miron says.
2011
Yearly revenue - $15 million
In 2011 KeepCalling's yearly revenue reaches 15 million dollars.
Second donation to Wikipedia
KeepCalling donates $2000 to Wikipedia. The company strongly believes Wikipedia should remain what it is: a free, reliable information database.
Worldwide coverage through 160 websites
KeepCalling provides telecommunications services available from anywhere on the globe to over 80,000 consumers and businesses through more than 160 various ethnic websites.
KeepCalling ranks #849 in Inc 5000
KeepCalling is designated by Inc 5000 as one of the fastest growing companies in the US. KeepCalling made it in the top 1000, ranking #849 with a revenue increase of 365%, growing from 1.5 million dollars in 2007 to 6.8 million dollars in 2010.
Monthly Plan service is launched
In 2011, KeepCalling introduces a much appreciated service, addressed to people who want to call their dear ones back home often and at affordable rates. Monthly plans offer a generous number of minutes for an advantageous fixed rate.
9 years of KeepCalling!
Over 60,000 customers, over 13 million minutes connected monthly! A short summary of what KeepCalling means after 9 years.
Web SMS launched
KeepCalling launches WEB SMS, an option incorporated in the WEB CALL application. By using WEB SMS, customers can send texts to their dear ones back home.
2010
KeepCalling supports Mosoj Yan
KeepCalling donates $2000 to Mosoj Yan in order to support the restoration of the Center for Girls and Teenage Workers and the one for the Refuge Restoration.
New product: Mobile Recharge
Mobile Recharge is launched, a product that would later become one of the best and most popular services provided by KeepCalling.
KeepCalling teams up with Habitat for Humanity
10 members of the KeepCalling team from Sibiu, Romania join Habitat for Humanity in their efforts to build a home for a family in need.
KeepCalling turns 8!
The company celebrates 8 years of bringing families and friends closer, no matter the country they live in.
First donation to Wikipedia
“We like to support educational initiatives and Wikipedia is just that. There are countless of people around the world using Wikipedia to find information and I believe that Wikipedia has been one of the most important developments on the world wide web in the last 10 years.” - Florin Miron, KeepCalling CEO.
2009
7 years = 150 websites
KeepCalling reaches an impressive number of websites in 2009 when more than 150 websites in different languages speak KeepCalling language.
2008
First million minutes connected
The company registers the first million minutes connected in a week.
Yearly revenue - $3,4 million
KeepCalling's yearly revenue reaches 3,4 million dollars in 2008.
100 Websites
KeepCalling services are more accessible to non-US based customers. Our products are now available from more than 20 countries. KeepCalling reaches 102 websites which contributes to the ongoing success of the company.
2007
Magic 50: Growing business, growing team
US mobile provider Tello brings exciting news for its customers: free international calls. All Tello plans now include free calls to 60+ countries worldwide.
New websites launched
The fast-paced development of the company continues, so by June 2007 more than 30 websites are perfectly functioning and selling our products.
2006
KeepCalling runs 12 websites
KeepCalling reaches more people in more languages, through its 12 websites.
2005
KC team keeps growing
KeepCalling team reaches 20 members, all enthusiastic, skillful and eager to learn and contribute.
Sales reach $1 million
2005 is a crucial year for KeepCalling, as the sales reach 1 million dollars. This figure outlines the successful profile of the company.
2004
First Spanish website
For the first time, our Spanish speakers are able to browse our website in their native tongue, on SigueLlamando.com.
New office: Cochabamba, Bolivia
KeepCalling confirms its expansion by opening a second office in Cochabamba, Bolivia.
2003
KeepCalling.com goes live
KeepCalling.com is launched and welcomes its first customers.
Head office in Sibiu, Romania
The first office is opened in Sibiu, Romania and the company starts expanding rapidly.
2002
KeepCalling is founded
KeepCalling story starts in June 2002 in a small town called Americus, Georgia when the company’s President, Florin Miron, created the first website: SunaRomania.com