Deferred revenues (Tables)

12 Months Ended

Dec. 31, 2025

Notes and other explanatory information [abstract]

Schedule of deferred revenue

Schedule of deferred revenue
	2025		2024

Deferred revenues	765,711		839,867

Prepaid services⁽ⁱ⁾	130,783		172,824
Anticipated revenues	31,058		35,510
Deferred revenues on sale of towers⁽ⁱⁱ⁾	518,445		572,540
Contract liabilities⁽ⁱⁱⁱ⁾	85,425		58,993

Current portion	(259,527)		(280,422)
Non-current portion	506,184		559,445

(i)	Referring to the recharge of voice credits and data not yet used by customers relating to prepaid system services that are appropriate to the result when the actual use of these services by customers.

(ii)	Referring to the amount of revenue to be appropriated by the sale of the towers (note 17).

(iii)

Contracts with customers. The table below includes information on the portion of trade accounts receivable, from which contractual assets and liabilities originate.

Schedule of contractual assets and liabilities


	2025		2024

Contractual assets (Note 6)	25,898		24,027
Contractual liabilities	(85,425)		(58,993)

Schedule of main changes during the fiscal year


	Contractual assets (liabilities)

Balance on January 1, 2025	(34,966)
Additions	(53,353)
Write-offs	28,792
Balance on December 31, 2025	(59,527)

Schedule of balances of contractual assets and liabilities are expected to be realized


	2026	2027
Contractual assets (liabilities)	(43,214)	(16,313)