Announced details
Countermeasures against nuisance calls and special fraud on fixed-line phones
Detects nuisance calls with approximately 99% accuracy
Approximately 15 million users per month (across all spam-information filtering services)
Tobila Systems’ spam-call information database is used in KDDI’s service for au Hikari Phone.
Free for a total of up to 6 months for applicants who meet certain conditions
The company does not address Contract Value / Impact on Business Performance.
National Police Agency, KDDI’s official website, and Tobila Systems’ aggregated data for January to December 2025
| Item | Details |
|---|---|
| Names of Products / Services Covered | Nuisance Communications Database, au Hikari Phone “Spam Call Blocking” |
| Counterparty | KDDI Corporation |
| Relationship with the Company | Tobila Systems’ spam-call information database is used in KDDI’s service for au Hikari Phone. |
| Offering price | Free for a total of up to 6 months for applicants who meet certain conditions |
| Launch date | 15 April 2026 to 30 September 2026 (rerun period) |
| Applicable area | Countermeasures against nuisance calls and special fraud on fixed-line phones |
| Quantitative Effects | Detects nuisance calls with approximately 99% accuracy |
| Usage history | Approximately 15 million users per month (across all spam-information filtering services) |
| Source | National Police Agency, KDDI’s official website, and Tobila Systems’ aggregated data for January to December 2025 |
Items this document does not state (9)
These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.
The reasons the company gives
The company's own explanation, not something inferred from the numbers.Because special fraud has become more serious and the Ministry of Internal Affairs and Communications has asked telecommunications operators to strengthen their countermeasures.