What is Cell Phone Number Service?-Cell Phone Number Service(CPNS)-阿里云帮助中心

Cell Phone Number Service provides mobile phone number information services for enterprises on Alibaba Cloud. With user authorization, you can query number ownership (mobile number portability, home city, and carrier), number status (nonexistent, powered off, or suspended), recycled numbers, and time-in-use (the duration a number has been used with the carrier), and perform carrier two-factor and three-factor verification.

Benefits

Stable and reliable: Real-time monitoring of carrier requests with automatic failover to improve availability.
Direct resources: Connects directly to carrier data sources without third-party involvement, ensuring security and compliance.
Data security: Supports API calls with phone numbers in plaintext or encrypted with MD5 and SHA256 to protect enterprise data.
Comprehensive and accurate: Interoperates with carrier systems in real time and covers mobile phone numbers from China's three major carriers.
Fast number detection: Offers a high success rate, supports multiple status types, and is less intrusive than traditional detection methods.
Quick integration: Integrates easily through APIs and SDKs. You can log on for one-click activation.

Product features

Capability	Description
number attribution query	Queries attribution information for a phone number, including its province, city, base carrier, number portability status, and number segment.
phone number status query	Queries the real-time status of a phone number through carrier signaling. Statuses include active, powered-off, suspended, inactive, and busy. Note The phone number status query feature supports numbers from China Telecom, China Unicom, and China Mobile, but not from China Broadcasting Network.
recycled phone number query	Determines if a user's phone number is a recycled number reassigned by the carrier.
time-on-network query	Checks how long a phone number has been in service with its current carrier.
carrier two-factor verification	Verifies that a user's name and phone number match.
carrier three-factor verification	Verifies that a user's name, phone number, and ID card number match.
UAID query	Retrieves a user's phone number and International Mobile Equipment Identity (IMEI) without user interaction. The retrieved numbers are encrypted and cannot be decrypted, making them suitable for ad attribution analysis and enterprise risk control.
ID card two-factor verification	Verifies the consistency and authenticity of a user's name and ID card number.
ID card three-factor verification	Verifies that a user's name, ID card number, and portrait photo match official records.
enterprise two-factor verification	Verifies that an enterprise's name and organization code match, and returns its operational status. Supported entities include enterprises, public institutions, civil organizations, and individual organizations.
enterprise three-factor verification	Verifies that an enterprise's name, organization code, and legal representative's name match, and returns its operational status. Supported entities include all standard enterprises that can be queried in the National Enterprise Credit Information Publicity System.
number encryption	Encrypts the real phone numbers of your business and your customers into virtual numbers. By integrating with Alibaba Cloud's communication services, you can use these virtual numbers for voice calls and SMS messages to protect your data assets.