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CNAE 6110-8/01 · Brazil

Serviços de telefonia fixa comutada - stfc

574 active companies in the Brazilian CNPJ registry have this CNAE as their main activity. Look up companies and explore their distribution by state and city.

Source: Receita Federal, CNPJ Open Data · October 2026 publication

What this list shows

We count each active company in the Brazilian CNPJ registry once, by its head office and this CNAE as its main activity. Branches and secondary activities are excluded from this scope. The total describes the registry, not market revenue or company quality.

Active companies
574
851st of 1,329 activities
Opened in 12 months
41
+20.6% · 860th by openings
Of every 100 companies in the country
0.0
do this activity
Openings per 100 active
7
in the country: 21

Active companies in this activity

More active establishments and higher registered capital first. This order is not a quality assessment or recommendation.

Look up companies in this activity (up to 300)

How to assess a company's data

When you open a company's record, use these guides to check the data and understand what each field can establish.

Where the companies are

Acre: 1 company, 0.0 of every 100 active companies there Alagoas: 5 companies, 0.0 of every 100 active companies there Amapá: 0 companies, 0.0 of every 100 active companies there Amazonas: 4 companies, 0.0 of every 100 active companies there Bahia: 13 companies, 0.0 of every 100 active companies there Ceará: 6 companies, 0.0 of every 100 active companies there Distrito Federal: 12 companies, 0.0 of every 100 active companies there Espírito Santo: 10 companies, 0.0 of every 100 active companies there Goiás: 11 companies, 0.0 of every 100 active companies there Maranhão: 4 companies, 0.0 of every 100 active companies there Mato Grosso: 5 companies, 0.0 of every 100 active companies there Mato Grosso do Sul: 10 companies, 0.0 of every 100 active companies there Minas Gerais: 46 companies, 0.0 of every 100 active companies there Pará: 3 companies, 0.0 of every 100 active companies there Paraíba: 3 companies, 0.0 of every 100 active companies there Paraná: 50 companies, 0.0 of every 100 active companies there Pernambuco: 15 companies, 0.0 of every 100 active companies there Piauí: 2 companies, 0.0 of every 100 active companies there Rio de Janeiro: 73 companies, 0.0 of every 100 active companies there Rio Grande do Norte: 1 company, 0.0 of every 100 active companies there Rio Grande do Sul: 48 companies, 0.0 of every 100 active companies there Rondônia: 3 companies, 0.0 of every 100 active companies there Roraima: 1 company, 0.0 of every 100 active companies there Santa Catarina: 15 companies, 0.0 of every 100 active companies there São Paulo: 225 companies, 0.0 of every 100 active companies there Sergipe: 0 companies, 0.0 of every 100 active companies there Tocantins: 2 companies, 0.0 of every 100 active companies there

Weight in each federative unit: of every 100 active companies, how many have this main activity

  1. 0.0
  2. 0.0
  3. 0.0
  4. 0.0
  5. 0.0

Federative units with the most companies

  1. 1 São Paulo 225
  2. 2 Rio de Janeiro 73
  3. 3 Paraná 50
  4. 4 Rio Grande do Sul 48
  5. 5 Minas Gerais 46
  6. 6 Pernambuco 15
  7. 7 Santa Catarina 15
  8. 8 Bahia 13
  9. 9 Distrito Federal 12
  10. 10 Goiás 11
See the 25 federative units
  1. 11 Espírito Santo 10
  2. 12 Mato Grosso do Sul 10
  3. 13 Ceará 6
  4. 14 Alagoas 5
  5. 15 Mato Grosso 5
  6. 16 Amazonas 4
  7. 17 Maranhão 4
  8. 18 Pará 3
  9. 19 Paraíba 3
  10. 20 Rondônia 3
  11. 21 Piauí 2
  12. 22 Tocantins 2
  13. 23 Acre 1
  14. 24 Rio Grande do Norte 1
  15. 25 Roraima 1

Cities with the most companies

active companies by head office

  1. 1 São Paulo (SP) 122
  2. 2 Rio de Janeiro (RJ) 58
  3. 3 Belo Horizonte (MG) 16
  4. 4 Campinas (SP) 13
  5. 5 Curitiba (PR) 12
  6. 6 Brasília (DF) 12
  7. 7 Recife (PE) 8
  8. 8 Barueri (SP) 8
  9. 9 Mauá (SP) 6
  10. 10 Campo Grande (MS) 6
See the 29 cities
  1. 11 Goiânia (GO) 6
  2. 12 Uberlândia (MG) 5
  3. 13 Guarulhos (SP) 5
  4. 14 Maringá (PR) 5
  5. 15 Novo Hamburgo (RS) 5
  6. 16 Maceió (AL) 4
  7. 17 Feira de Santana (BA) 4
  8. 18 Pinhais (PR) 4
  9. 19 Santos (SP) 4
  10. 20 Chapecó (SC) 4
  11. 21 Caxias do Sul (RS) 4
  12. 22 Manaus (AM) 3
  13. 23 São Luís (MA) 3
  14. 24 Fortaleza (CE) 3
  15. 25 Cotia (SP) 3
  16. 26 Indaiatuba (SP) 3
  17. 27 Jundiaí (SP) 3
  18. 28 Osasco (SP) 3
  19. 29 Ribeirão Preto (SP) 3

What activity 6110-8/01 is

  1. Section J — Informação e comunicação
  2. Division — Telecomunicações
  3. Group — Telecomunicações por fio
  4. Class — Telecomunicações por fio

What it covers

  • As atividades de operação de centrais de comutação e meios de comunicação para promover a transmissão de voz e de outros sinais, destinadas à comunicação entre pontos fixos determinados, utilizando processos de telefonia. Estão incluídos nessa categoria os serviços de telefonia fixa comutada - STFC, tais como: #- os serviços de telefonia destinada ao uso do público em geral #- os serviços de telefonia fixa local #- os serviços de telefonia fixa de longa distância nacional #- os serviços de telefonia fixa de longa distância internacional
  • O acesso à internet por operadoras de centrais de comutação e meios de comunicação

What it does not cover

Typical activities

  • Companhia de telefone convencional por fio
  • Empresa de telefone convencional por fio
  • Empresa de telefone por fio
  • Empresa telefônica convencional - por fio
  • Serviços de comunicação telefônica convencional por fio
  • Serviços de telefonia convencional por fio
  • Serviços de telefonia fixa comutada - stfc
  • Serviços de telefonia fixa de longa distância internacional
  • Serviços de telefonia fixa de longa distância nacional
  • Serviços de telefonia fixa local

Source: IBGE, CNAE 2.3 and its explanatory notes

The activities of class 6110-8

telecomunicações por fio, by subclass
SubclassActiveOpeningsChange
6110-8/01 Serviços de telefonia fixa comutada - stfc · this one57441+20.6%
6110-8/02 Serviços de redes de transportes de telecomunicações - srtt998—
6110-8/03 Serviços de comunicação multimídia - scm18,6031,280−8.7%
6110-8/99 Serviços de telecomunicações por fio não especificados anteriormente22226−16.1%

Frequently asked questions about CNAE 6110-8/01

How many CNAE 6110-8/01 companies are there in Brazil?

574 active companies have CNAE 6110-8/01 as their main activity, according to the Receita Federal's October 2026 publication. It is 851st among the country's activities by companies.

Which activities make up class 6110-8?

Class 6110-8 has 4 subclasses: 6110-8/01; 6110-8/02; 6110-8/03; 6110-8/99. The official names are in the subclass table. A company declares one main activity and may declare others as secondary activities.

Which federative unit has the most companies in this activity?

São Paulo, with 225. There, 0.0 of every 100 active companies have this main activity, against 0.0 in the national registry.

Does this total include branches and secondary activities?

No. Each active company is counted once, by its head office and registered main activity. A company may carry out this activity as a secondary activity and be excluded from the count. Geographic distribution uses the registered location; records without a recognized federative unit may be counted nationally without appearing in local groups.

Does active status mean a company is qualified for a contract?

No. Active status describes the Receita Federal registration. It does not establish tax compliance, creditworthiness, licences, ability to fulfil a contract or quality. Check the relevant official documents and the contract's requirements.

How we count

Active companies in the Brazilian CNPJ registry with this as their main activity, counted once by head office. Location is taken from the registry. Where available, openings are for the last 12 months, compared with the previous 12 months.