Company lists · Data refreshed September 2026
Top 25 Incumbent local exchange carriers worldwide
RevenueBase identified 1,904 incumbent local exchange carriers worldwide as of September 2026 and tracks 258,854 professional contacts across them, including 49,428 with verified work emails. The United States is the largest market and London the largest hub.
This list covers incumbent local exchange carriers worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026. Country and city lists for incumbent local exchange carriers follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.
The 25 largest incumbent local exchange carriers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 30,997 contacts → | ||||
Indirect evidence “For company news and job opportunities, please follow us at: Spectrum is powered and innovated by Charter Communications.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 14,061 contacts → | ||||
Partial evidence “Since its establishment in 1854, Telecom Egypt has played a pivotal role in driving growth within the local ICT market capitalizing on its vast infrastructure, which is one of the…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 12,790 contacts → | ||||
Indirect evidence “Turkcell is a converged telecommunication and technology services provider, founded and headquartered in Türkiye.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 7,275 contacts → | ||||
Indirect evidence “Windstream and Uniti have merged - Please follow us at Uniti Group, Inc.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 6,379 contacts → | ||||
Indirect evidence “Cable One Business offers scalable, reliable, and efficient solutions so that the businesses we serve can be successful.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 5,324 contacts → | ||||
Indirect evidence “Claro Chile es filial de América Móvil, el tercer operador de telecomunicaciones en el mundo y el más grande de Latinoamérica.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 5,061 contacts → | ||||
Indirect evidence “Tunisie Telecom est parmi les pionniers des grands opérateurs Telecom de la région.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 5,037 contacts → | ||||
Indirect evidence “VodafoneZiggo is een krachtenbundeling van twee sterke Nederlandse bedrijven.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 4,921 contacts → | ||||
Indirect evidence “A GVT é a empresa nacional que mais cresce no setor de telecomunicações.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 3,876 contacts → | ||||
Indirect evidence “ACT (Atria Convergence Technologies Ltd.) was born out of a vision to become the most admired in-home entertainment, education, and interactive services provider in India, back in…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 3,850 contacts → | ||||
Indirect evidence “WINDTRE è l’operatore italiano che offre connessioni, energia e prodotti assicurativi*.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 3,742 contacts → | ||||
Indirect evidence “A1 – Internet, Voice, TV and IT-Services from One Source A1 is Austria’s leading communications provider, encompassing more than 5.3 million mobile communications customers and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 3,294 contacts → | ||||
Indirect evidence “Voice wholesale” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 3,284 contacts → | ||||
Partial evidence “Sunrise is Switzerland’s leading challenger in the telecommunications market and is listed on the SIX Swiss Exchange (SUNN).” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 2,658 contacts → | ||||
Indirect evidence “DIGI es una empresa que pertenece a la multinacional DIGI Communications, con 30 años de experiencia en el sector de las telecomunicaciones y presente en España desde 2008 donde…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 2,419 contacts → | ||||
Indirect evidence “TDS Telecommunications LLC (TDS Telecom/TDS®) delivers high-speed internet, TV entertainment, and phone services to a mix of small to mid-sized urban, suburban and rural…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 2,162 contacts → | ||||
Indirect evidence “Somos a Vero, uma empresa de telecomunicações brasileira.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 1,954 contacts → | ||||
Indirect evidence “At Optimum, we believe in the power of connection.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 1,884 contacts → | ||||
Indirect evidence “Digital telecom of a new generation with an extremely wide range of telecommunications solutions for residential and business customers, partners, and stakeholders – this is…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1,847 contacts → | ||||
Indirect evidence “About TSTT: Telecommunications Services of Trinidad and Tobago Limited is jointly owned by National Enterprises Limited (NEL 51%) and Cable & Wireless (West Indies) Limited,(C&W –…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1,822 contacts → | ||||
Indirect evidence “HOT is a group of communication companies that offers customers a great variety of communication services, including multi-channel television, fast internet infrastructure with a…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1,807 contacts → | ||||
Partial evidence “Cogeco delivers 100% local support on a fibre-powered network.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1,222 contacts → | ||||
Indirect evidence “Somos uma operadora independente de telecomunicações, com sede na cidade de São Paulo/SP, que oferece serviços de internet de alta velocidade por fibra óptica, além de TV por…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1,220 contacts → | ||||
Partial evidence “TTCL Corporation is a Tanzania's leading integrated communications Corporation, with a comprehensive portfolio of products and services including local, national and international…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1,186 contacts → | ||||
Indirect evidence “Shentel has been keeping communities connected since 1902.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: incumbent local exchange carriers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names incumbent local exchange carriers.
- Partial evidence
- Its own public description names part of incumbent local exchange carriers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name incumbent local exchange carriers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 1,904 incumbent local exchange carriers worldwide
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Incumbent local exchange carriers worldwide at a glance
As of Sep 20, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among incumbent local exchange carriers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for incumbent local exchange carriers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “incumbent local exchange carriers”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names incumbent local exchange carriers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among incumbent local exchange carriers, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 49,428 across the full list. 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 September 20, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Incumbent local exchange carriers by location
9 lists · largest firstEvery Incumbent local exchange carriers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Incumbent local exchange carriers based in the United States395
- Incumbent local exchange carriers based in Brazil370
- Incumbent local exchange carriers based in Spain109
- Incumbent local exchange carriers based in Germany73
- Incumbent local exchange carriers based in the United Kingdom70
- Incumbent local exchange carriers based in Canada45
- Incumbent local exchange carriers based in Italy45
- Incumbent local exchange carriers based in France43
- Incumbent local exchange carriers based in India38
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names incumbent local exchange carriers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many incumbent local exchange carriers are there worldwide?
RevenueBase identified 1,904 incumbent local exchange carriers worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Charter Communications, headquartered in Stamford, tops this list with the largest team on record.
Which country has the most incumbent local exchange carriers?
The United States leads with 395 companies, followed by Brazil (370) and Spain (109). Every incumbent local exchange carriers list by country and city is linked on this page.
Which city has the most incumbent local exchange carriers?
London leads with 16 headquartered companies, followed by Sao Paulo (12) and Rio De Janeiro (9).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 49,428 verified decision-maker contacts tracked across these 1,904 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.
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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 Smart Search, 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.