Mobile, landline
or VoIP?
Identify the kind of line behind a phone number before deciding how to contact it.
Line Type Checker
Free check · No signup required
Include the country code, such as +1 for the US and Canada, or pick the country from the list.
Every check returns- Validity
- Line type
- Carrier
- Location
- Risk score
One field does not tell the whole story.
Combine the result with validation and your own contact rules.
Available, not assumed
Carrier, line type and regional detail may be unavailable for some numbers or countries.
Context, not ownership
A lookup does not identify the person who controls a number. Use a separate verification step when needed.
Check more than format
A well-formed number can still be unsuitable for your workflow. Review the other available signals.
Choose a channel with the line type in view.
Use line classification as context rather than a guarantee of channel support.
- 01
Mobile
Mobile classification is useful for SMS-oriented workflows.
Check provider support and consent separately.
- 02
Landline
Landline data can help distinguish voice-oriented contacts from mobile lists.
Do not infer that every landline has identical messaging capability.
- 03
VoIP and other lines
VoIP, toll-free and premium-rate categories deserve channel-specific review.
A VoIP classification is not proof of fraud.
What the result can and cannot establish.
Use the data as one part of a contact workflow.
Clear data practices. Clear responsibilities.
Review how SPV describes customer-data processing before introducing it into your workflow.
Your numbers.
Your processing purpose.
SPV’s published policy states it processes submitted data to deliver the requested service and does not sell submitted personal information.
Read the privacy policyPrivacy and data protection
The policy addresses GDPR and UK GDPR, data-subject rights and international transfers. Customers remain responsible for their lawful basis for processing.
Retention and security
Retention varies by purpose and legal requirements. Review the published policy and ask the team for retention periods and the controls relevant to your deployment.
Validation and outreach consent
A valid number does not establish permission to call or text. Apply your consent, suppression and channel-specific checks separately.
Direct answers to your questions.
Find the practical details for this page.
What is a phone line type checker?
It identifies the available line category associated with a number, such as mobile, landline or VoIP.
Does a mobile result guarantee SMS delivery?
No. Delivery depends on current service, network and provider support.
Can line type change?
Number data and service arrangements can change. Treat the lookup as a current result where supported.
Can I tell if a number is mobile or landline?
Where data is available, the line-type result can provide that classification.
Are VoIP numbers fake?
No. VoIP is widely used by legitimate individuals and businesses.
Can I check line types for a list?
Yes. Bulk results include a line type column for every checked number.
Start with the numbers you have.
Check a single number, clean a contact list, or add validation to your app.