AGE ASSURANCE
Mobile phone number age checks
Confirm a user is 18+ from their mobile phone number, in seconds.
Territory
United Kingdom
Type
Age inference
Deployment
Background/Age gate
Speed
Results in seconds
Confirm an adult is behind the number
Confirms the phone is in the possession of, and authorised for use by, someone aged 18 or over. Using a mobile number the platform already holds, the check runs seamlessly in the background, with zero disruption to the user.
No identity documents
No selfies
No credit card details
No apps to install
Just the mobile number they already use. Simple as that.
Benefits
Good for users, good for business
Protects minors
Supports compliance
Privacy-preserving
Fast
Frictionless
Inclusive and without bias
how it works
Mobile age checks, step by step
Whether deploying Verifymy's market-leading email-based age checks as a single, standalone method or as part of your full age assurance suite, the solution fits seamlessly into your platform without adding unnecessary friction.
1
A mobile number is submitted by the platform via API or entered manually by the user
2
Anti-spoofing and fraud prevention checks are applied
3
A time-sensitive one-time passcode confirms the phone is in the user's possession
4
The mobile network operator confirms whether the account is authorised for use by someone 18 or over
5
A yes or no result is returned to the platform. If age can't be determined, the user is offered an alternative method
WHITE PAPER
Email-based age checks: The benchmark for frictionless age assurance
Download our latest white paper for more information on how our email address solution works.
Age checks for all industries
Social media
Tailoring experiences by age and protecting younger users from age-inappropriate and harmful content.
Adult entertainment
Preventing minors from accessing adult content, in line with evolving age verification regulations.
Online video gaming
Ensuring players meet minimum age requirements for mature-rated games and user-to-user features.
Marketplaces
Verifying buyers’ ages at checkout for age-restricted items such as alcohol, tobacco, vapes and bladed items.
TRUST & COMPLIANCE
Certified accuracy
Independently certified by the Age Check Certification Scheme to ISO/IEC 27566-1:2025.
Built on privacy-by-design principles
Every age check returns a simple result - a pass/fail against the age threshold, or a minimum estimated age. No documents, biometric data or personal details are ever shared with your platform.
Data retention
Deleted or anonymised immediately after verification
Data minimisation
Only the minimum data needed to return a result is ever collected
Data integrity
Protected with 256-bit encryption, hashed and salted.
GDPR
Fully compliant with UK and EU GDPR
How businesses use it
Regulatory compliance
Meet local and global age verification, advertising, and data privacy requirements.
Age-gating
Restrict access to age-sensitive content and products — alcohol, tobacco, adult entertainment.
Age-appropriate experiences
Tailor content, features, and interactions to age groups on social, video, and gaming platforms.
Database enrichment
Verify age thresholds (13, 16, 18+) across your existing user base to improve targeting and ROI.
Explore other age assurance methods
Mobile phone number age checks are one of several methods Verifymy offers. Deployed as a single, standalone method or as part of your full age assurance suite, the solution fits seamlessly into your platform while keeping business disruption to a minimum.
Email address
Analyses an email address's existing digital footprint - without accessing its contents - to determine whether the user meets the applicable age threshold
Facial age estimation
Analyses facial features captured in a short selfie video - including liveness checks that protect against 2D images, masks or bots - to determine whether the user meets the applicable age threshold.
Identity document and face match
Takes a picture of a government-issued identity document and matches it against a selfie - verifying that the document belongs to the person presenting it - to confirm whether the user meets the applicable age threshold.
Credit card
Authorises a user's credit card - reflecting the minimum age required to hold one in the relevant jurisdiction - to determine whether the user meets the applicable age threshold.
Brazilian CPF check
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Talk to a regulatory expert
Understand how mobile phone number age checks can meet age assurance regulations in your markets.
Frequently asked questions
Answers to common questions about mobile phone number age checks age checks.
How does a mobile number prove someone's age?
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Is this verification or estimation?
An age verification method using credit card authorisation to confirm age.
What does the mobile network share with Verifymy — and with our platform?
An age estimation method based on a person’s facial features captured in a short selfie video.
Does this work on pay-as-you-go numbers?
An age verification method that uses government-issued IDs to determine a user's age and employs face match technology to verify ID ownership.
What happens if the user's age can't be confirmed?
An age verification method using credit card authorisation to confirm age.
Does it work outside the UK?
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Can it run in the background at sign-up?
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Could a child use a parent's phone to pass the check?
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