01
Upload your list
Import CSV or TXT files with phone number data, then confirm the task settings before processing.
Line Profile Checker
Check LINE registration status with the current line_senior output.
Price (per 10,000 numbers) $15 USD
Check LINE registration status using the currently available line_senior result fields.
Check LINE registration status with the current line_senior output.
Price (per 10,000 numbers) $15 USD
Check LINE registration status using the currently available line_senior result fields.
No account, number, or SIM required
Every check runs through official platform APIs on our own infrastructure. You never connect, bind, or use your own account, phone number, or SIM card — just upload your list or call the API and get results.
- Registration Status: Return the submitted number and its current LINE registration status.
- Current Output: Use the fields available in the live line_senior product response.
- Structured Results: Keep each submitted number mapped to its returned status.
- No Unverified Claims: The page does not promise age, gender, avatar, or other unavailable profile fields.
Detection signals
What Line Profile Checker detects
LINE Age & Gender Checker confirms whether a phone number is registered on LINE and, for registered accounts, returns an inferred age range and inferred gender based on the public avatar image, along with the avatar image URL.
Registration status
Confirms whether the phone number is registered on LINE (yes or no), so you can filter out unregistered numbers before outreach.
Inferred demographics
Returns an inferred age range and inferred gender read from the account's public avatar image, plus the avatar image URL.
Passive, no contact
Reads registration signals only. The account holder is never messaged, logged in to, or notified.
Workflow
How Line Profile Checker works
Use Line Profile Checker as part of a repeatable list-cleaning workflow before outreach, CRM imports, or audience segmentation.
02
Run the check
NumberChecker.AI processes the file in bulk and returns structured status signals for each row.
03
Export segments
Download results and route clean, matched, unmatched, or review-needed rows into your next workflow.
Outputs
What you can review after the check
number
activated
uid
nickname
gender
age
skin_color
hair_color
category
avatar
Use cases
Where teams use Line Profile Checker
List cleaning
Remove unsupported or low-confidence records before campaigns or imports.
Audience segmentation
Create groups based on platform, email, phone, or account-related signals.
Review workflows
Send uncertain or high-value records into a separate internal review queue.
Related checks
Pair Line Profile Checker with related products
Explore checks that teams often run before or after this product.
Phone Number Validation
Validate numbering format, line type, and reachability signals before platform-specific checks
Number Active Checker
Detect phone number activity level via big-data analytics to improve SMS delivery and reduce costs
High-value Users Checker
Identify high-value phone users via big-data signals for better targeting and prioritization
E-commerce Activity Checker
Filter out numbers recently active on e-commerce platforms and reach high-converting users with real purchasing habits.
FAQ
Line Profile Checker questions
Can I check phone numbers against LINE in bulk? +
Yes. Upload a CSV of numbers or call the REST API, then download a result file with a registered or not-registered verdict for every number. You are billed only for successful checks.
Does the check message or notify the person? +
No. The check is passive and reads registration signals only. Nothing is sent to the number, and the account holder is never contacted or notified.
Does this also return activity data like last online time? +
No. LINE Age & Gender Checker returns registration status, inferred age range, inferred gender, and the avatar image URL only. For last-online time and recent activity signals on a different platform, see Viber Profile Checker.
Is there a free trial? +
Yes. New accounts receive free checks on signup, and every check is pay-as-you-go with no monthly fee.
Ready to run Line Profile Checker at scale?
Compare pricing, review API options, or create an account to upload your first production list.
