Validity
Shows whether the number passed the validation check. Invalid numbers get their own status, so teams can review or filter them before using a contact list.
Validate phone numbers before you call or message 
Run an HLR (Home Location Register) check to validate a phone number, see its availability status, operator and country, and check for matches on supported social platforms.
Single number check
Country shows where the number is registered, not where its owner is right now. Found means the Validator detected a match between the number and that platform. It doesn't identify the account owner or show whether the account is active.
Run 3 free checks, no sign-up needed.
Need more? Contact our manager to create an account and choose a package.
What the Validator checks
HLR is the database mobile networks use to manage subscriber number information. An HLR lookup requests network-level data about a phone number and returns the available status information.
A format check only confirms that a number follows the expected numbering structure. An HLR lookup goes further by checking network-level information about the number.
| Comparison | Format check | HLR lookup |
|---|---|---|
| What it checks | Format checkNumber format and structure | HLR lookupNetwork-level number status |
| Detects format issues | Format checkYes | HLR lookupYes |
| Returns network status | Format checkNo | HLR lookupYes |
| Returns operator data | Format checkLimited to numbering data | HLR lookupOperator returned by the lookup |
| Shows availability | Format checkNo | HLR lookupIf supported by the returned data |
HLR and number details
Availability
Shows the status returned by the network in a clear category instead of a raw technical code.
Operator
Shows the mobile operator returned by the lookup.
Country
Shows the country associated with the phone number code. This doesn't indicate the person's current physical location.
Availability statuses
The Validator converts technical availability codes into clear, user-facing statuses.
Available
The network returned an active status for the number.
Temporarily unavailable
The number couldn't be reached at the time of the check. This doesn't mean the number no longer exists.
Unavailable
The network returned a status showing the number can't be reached.
Unknown
The network didn't return enough data to confirm the status.
Unsupported
Checks aren't available for this country or operator.
How to use the results in your campaigns
A validation result becomes more useful when each status has a clear next step. Teams can use the results to decide which records to keep, review or recheck before the next campaign.
ResultRecommended next step
Valid + Available
Keep the contact in the list for further outreach.
Temporarily unavailable
Keep the contact for a later recheck or another attempt.
Unavailable
Lower its priority and consider rechecking before another campaign.
Invalid
Review the record before using it in another campaign.
Unknown
Recheck later rather than treating the number as invalid.
Found on a supported platform
Use the signal for segmentation where your workflow and consent rules allow it.
Where teams use the Validator
Clean contact databases
Split a list into valid, invalid and unconfirmed numbers before a campaign starts. Outbound teams can filter or deprioritize records that returned a negative validation result, especially when working with large contact bases and call center solutions.
Reduce failed outreach
Identify invalid or unavailable numbers before agents dial them or an SMS campaign starts. This helps reduce attempts on contacts that have already returned a negative validation result.
Prioritize contact records
Lead generation and affiliate teams can segment records by validation status, operator, country and available social signals before they enter a sales workflow.
Validate new contacts
Check a number at signup, during CRM import or before a lead moves into a sales workflow. Fintech teams can use validation alongside telephony for finance to keep contact records up to date.
Prepare SMS and calling campaigns
Check the condition of a contact base before launching OTP, 2FA, SMS or voice traffic. The results help teams identify invalid, unavailable and uncertain records before sending traffic.
How a check works
- 01
Enter a single number or upload a file with a list of numbers.
- 02
The Validator normalizes the number to E.164 format and runs the HLR check.
- 03
Operator, country and supported social platform signals are added to the result.
- 04
You get a structured result for each number.
Single checks and bulk lists
Single check
Check one number from the page or your account. Use it to validate an individual contact before outreach or investigate a number that returned an unexpected result.
Bulk upload
Upload a CSV or XLSX file and get a validation result for every row. Duplicate numbers are removed automatically before the check.
API · Coming soon
You'll be able to connect the Validator to your CRM, signup form or other workflow and receive validation results in a structured format. Leave a request, and we'll let you know when API access opens.
Plans and pricing
Start
$75
- Checks
- Up to 500
- Price per check
- About $0.15
- HLR check
- Included
- Social checks
- Included
- Web version
- —
- API access
- Coming soon
Business
$120
- Checks
- Up to 1,000
- Price per check
- About $0.12
- HLR check
- Included
- Social checks
- Included
- Web version
- —
- API access
- Coming soon
Pro
$150
- Checks
- Up to 1,500
- Price per check
- About $0.10
- HLR check
- Included
- Social checks
- Included
- Web version
- Included
- API access
- Coming soon
One check covers the HLR lookup and all social platforms. Checks that fail due to an error or return no data aren't charged.
Why DID Global
Telecom expertise
Our team works with HLR, operator data, voice and messaging workflows and can help teams interpret validation results in the context of their communication setup.
One communication stack
Use Validator alongside DID Global services such as DID numbers, SIP trunking, SMS and SPAM Checker. SPAM Checker helps monitor the reputation of the numbers you call from, while Validator checks the status and available data for numbers in your contact base.
Onboarding help
We help you choose the right validation format for your workflow and get started quickly.
Room to grow
Start with the volume you need and move to a larger package as the number of checks increases.
Frequently asked questions
What does the Phone Number Validator check?
Each check runs an HLR lookup and returns validity, availability status, operator and country. It also checks for matches on supported social platforms, including WhatsApp, Facebook and Instagram. Results depend on the data returned during the check, so they shouldn't be treated as a guarantee that a person will answer a call, receive a message or take a specific action.
What does the availability status mean?
Availability shows the status returned during the network check. The Validator converts technical codes into clear categories: Available, Temporarily unavailable, Unavailable, Unknown and Unsupported. A temporarily unavailable number still exists, so it's worth rechecking later.
Which social platforms are supported?
WhatsApp, Facebook and Instagram, on every plan and in every supported country. Each platform can return Found, Not found or Unknown. Unknown is used when a platform gives no clear answer or the request fails.
Does Found confirm who owns the account?
No. Found means the Validator detected a match between the number and the platform. It doesn't identify the account owner or confirm that the account is active.
Can I validate a list of numbers?
Yes. Upload a CSV or XLSX file, and you'll get a result for every number in the list. Duplicate numbers are removed automatically, so each number is checked and charged only once.
Is API access available?
API access is coming soon. You'll be able to connect the Validator to your CRM, signup form or dialer and run checks automatically. Leave a request through the form, and we'll let you know as soon as it opens.
How are checks charged?
The Start plan includes up to 500 checks for $75, Business includes up to 1,000 for $120, and Pro includes up to 1,500 for $150. One check covers the HLR lookup and all three social platforms for a single number. You aren't charged when a check fails because of an error or when the number isn't found in the database. If you need more than 1,500 checks, we'll agree on a custom price for your volume.
How is uploaded data handled?
Uploaded numbers are processed to run the checks you request. For details on how DID Global collects, stores and protects data, see our Privacy Policy.
Check your contact base before the next campaign
Tell us how many numbers you need to check each month and how you plan to run the checks. We'll help you choose a plan and set up access.