Company lists · Data refreshed November 2026

Top 25 International calling providers worldwide

RevenueBase identified 480 company matches for international calling providers worldwide as of November 2026 and tracks 4,140 professional contacts across them, including 426 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for international calling providers worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for international calling providers follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
480Companies
4,140Contacts tracked
426Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest international calling providers worldwide

Ranked by team size
Top 25 of 480 company matches for international calling providers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Nov 6, 2026501-1,000637 contacts →

Exact match

“Lycatel is the global market leader in the calling card market, generating 1.6 billion minutes per month, with 9 million customers, across 17 markets globally.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchStockholm, SwedenHQ recorded Nov 6, 202651-20096 contacts →

Exact match

“Rebtel is a consumer communications company built for dual-culture people-immigrants, expats, and international students who live between cultures.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-20083 contacts →

Exact match

“BlaBla Connect is an international calling app, available for IOS and Android users.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchProvidencia, ChileHQ recorded Nov 6, 202651-20056 contacts →

Exact match

“Redvoiss fue la primera empresa latinoamericana en ofrecer el servicio de Telefonía por Internet, cuenta con más de una década en el mercado de las telecomunicaciones.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchAmsterdam, NetherlandsHQ recorded Nov 6, 202611-5054 contacts →

Exact match

“Bridging the Digital Divide with Global Communication & Services Talk360 is the world’s leading calling app for both global travelers and the African diaspora, connecting over 6…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchTerrebonne, QC, CanadaHQ recorded Nov 6, 202651-20050 contacts →

Exact match

“VoIP.ms is devoted to providing quality local and international connections to our customers around the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchTroy, MI, United StatesHQ recorded Nov 6, 2026201-50047 contacts →

Exact match

“SRVR - the leader in International Telecommunications – helps our customers connect with the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLos Angeles, CA, United StatesHQ recorded Nov 6, 202651-20041 contacts →

Exact match

“TollFreeForwarding.com is the #1 provider of international virtual phone numbers & international call forwarding services in the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchCeuta, SpainHQ recorded Nov 6, 202651-20039 contacts →

Exact match

“Numero eSIM is building one of the first truly global mobile operators, a borderless telecom platform designed to give users access to essential mobile services wherever they are.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLongview, TX, United StatesHQ recorded Nov 6, 202651-20036 contacts →

Exact match

“NetworkIP provides international long distance services for wireless, wired and VoIP networks to mobile and cable operators, distributors and agents.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSeoul, South KoreaHQ recorded Nov 6, 202651-20036 contacts →

Exact match

“Global Borderless Telco.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBerlin, GermanyHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“Established in 2002, 42com Telecommunication GmbH started by designing a white-label VoIP platform.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLewes, DE, United KingdomHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“Aiwo Networks is a leading Voice over IP (VoIP) services provider registered in USA.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“Vyke is about to revolutionise how we communicate with up to 4 additional mobile numbers, free chat features and low cost calls to anyone.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSheridan, United StatesHQ recorded Nov 6, 20261-1027 contacts →

Exact match

“Shree Telecom LLC is a USA Based VoIP company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchSheffield, United KingdomHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“Phone the world from 0.3p per minute!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchUnited StatesHQ recorded Nov 6, 202651-20020 contacts →

Exact match

“magicJack is a pioneer in Voice over IP (VoIP) technology and services, serving consumers across US and Canada.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchReston, ON, United StatesHQ recorded Nov 6, 202651-20019 contacts →

Exact match

“Established in 2001, IPsmarx has proven itself a leader in VoIP and communications technology, equipping service providers in 80 countries with the solutions they need to adapt to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchOrlando, FL, United StatesHQ recorded Nov 6, 202651-20018 contacts →

Exact match

“Voxbeam is a leading provider of wholesale international call termination.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchMargate, FL, United StatesHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Welcome to 011 Global: Connecting Communities, Bridging Distances Since 2007 At 011 Global, we have been dedicated to facilitating seamless connections for migrant communities…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLos Angeles, CA, United StatesHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Telzio powers billions of conversations globally with our best-in-class cloud phone service.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchUnited StatesHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Ashburn, VA based VIP Communications, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchAlcobendas, SpainHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Peoplecall es una empresa consolidada, con clara vocación internacional y construida sobre la pasión por la innovación tecnológica de un pequeño grupo de aventureros que vivieron…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchThe Hague, NetherlandsHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“At FroggyTalk, we aim to provide a reliable, value-for-money and easy-to-use platform catering to immigrants from developing countries and their everyday needs while living abroad.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchMoscow, RussiaHQ recorded Nov 6, 202651-20017 contacts →

Exact match

“UIS (Unique Intelligent Services) telecommunication company was founded in and became one of the most successful IP telephony providers on the Russian market.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 480 international calling providers worldwide

See the full list, filter by size, metro and specialty, and access 426 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

International calling providers worldwide at a glance

As of Nov 6, 2026
10.3%Verified-email coverage
8.6Average contacts per company
11-50Median size (employees)
5.2%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
204
11-50
179
51-200
69
201-500
11
501-1,000
6
1,001-5,000
2
5,001-10,000
3

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for international calling providers are linked below.
What qualifies
Company records worldwide whose business descriptions match “international calling providers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 426 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

International calling providers by location

2 lists · largest first

Every International calling providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “international calling providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many international calling providers are there worldwide?

RevenueBase identified 480 company matches for international calling providers worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Lycatel tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most international calling providers?

The United States leads with 99 companies, followed by the United Kingdom (43). Every international calling providers list by country and city is linked on this page.

Which city has the most international calling providers?

London leads with 25 company records, followed by New York (10) and Brampton (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 426 professional contacts with verified work emails tracked across these 480 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 480 international calling providers worldwide. Start with a free account, no credit card.

Download this list →

Related lists

About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.