v3.26.1
Operating costs and expenses (Tables)
12 Months Ended
Dec. 31, 2025
Notes and other explanatory information [abstract]  
Schedule of operating cost and expenses
   
  2025   2024
  Cost of services rendered and goods sold Marketing expenses General and administrative expenses Total   Cost of services rendered and goods sold Marketing expenses General and administrative expenses Total
                   
  (12,266,584) (5,959,682) (1,734,484) (19,960,750)   (11,893,115) (5,908,816) (1,798,005) (19,599,936)
                   
Personnel (52,255) (1,001,157) (430,273) (1,483,685)   (48,016) (925,033) (513,229) (1,486,278)
Third party services (624,185) (1,987,057) (779,528) (3,390,770)   (731,883) (2,037,447) (801,521) (3,570,851)
Interconnection and means of connection (3,581,352) - - (3,581,352)   (3,091,741) - - (3,091,741)
Depreciation and amortization (6,225,495) (411,753) (440,439) (7,077,687)   (6,232,502) (391,699) (401,834) (7,026,035)
Taxes, fees and contributions (137,230) (879,852) (30,579) (1,047,661)   (131,924) (932,489) (28,078) (1,092,491)
Rentals and reinsurance (575,524) (189,927) (32,001) (797,452)   (507,427) (178,771) (30,682) (716,880)
Cost of goods sold (1,062,370) - - (1,062,370)   (1,104,460)   - (1,104,460)
Publicity and advertising - (688,991) - (688,991)     (700,637) - (700,637)
Expected credit losses of trade accounts - (765,783) - (765,783)   - (693,122) - (693,122)
Other (8,173) (35,162) (21,664) (64,999)   (45,162) (49,618) (22,661) (117,441)

 

  2023
  Cost of services rendered and goods sold Selling expenses   General and administrative expenses Total
         
  (11,496,437) (5,742,642) (1,759,433) (18,998,512)
         
Personnel (57,740) (862,899) (459,230) (1,379,869)
Third party services (683,809) (2,211,627) (824,634) (3,720,070)
Interconnection and means of connection (2,804,984) - - (2,804,984)
Depreciation and amortization (6,369,438) (343,724) (403,867) (7,117,029)
Taxes, fees and contributions (36,503) (876,709) (26,863) (940,075)
Rentals and reinsurance (507,164) (146,632) (16,496) (670,292)
Cost of goods sold (1,033,891) - - (1,033,891)
Publicity and advertising - (599,253) - (599,253)
Expected credit losses of trade accounts - (639,692) - (639,692)
Other (2,908) (62,106) (28,343) (93,357)