Global coverage
Validate phone and account data across international datasets, messaging apps, social platforms, and crypto exchanges.
Check WhatsApp and Telegram numbers in bulk, validate phone and carrier data, and clean account lists across 40+ platforms — all from one CSV upload.
Active status, carrier, line type, country, and VoIP risk.
WhatsApp, Telegram, Facebook, Instagram, Apple ID, Amazon, and more.
One platform for WhatsApp & Telegram checks, phone & carrier validation, and high-volume list cleaning.
Validate phone and account data across international datasets, messaging apps, social platforms, and crypto exchanges.
Return practical status fields such as registered/not registered, active status, carrier, line type, country, and risk signals.
Start with free single lookups, then move to volume pricing for bulk CSV/TXT files and campaign-sized datasets.
Use API endpoints for batch list jobs, registration checks, single lookups, and automated CRM hygiene.
Check WhatsApp and Telegram lists first, then enrich the same file with phone validation, carrier lookup, and 40+ account signals when you need deeper list cleaning.
Start here for WhatsApp list cleaning: registered-number checks, account-age signals, and single-number online previews.
Use Telegram checks for the same list-cleaning workflow: account presence, account age, and online-status previews.
Search demand
Clean invalid, unreachable, recycled, and risky phone records when messaging-list quality needs a second pass.
Add carrier, line type, and routing signals after the account checks, especially before SMS spend or CRM cleanup.
Use these tools when the lookup starts from a phone number and you need account presence, age, recovery, or platform-coverage signals.
ViberViber Number CheckerCheck if a phone number is registered on ViberViber Days CheckerHow long the Viber account has been active
FacebookCheck if a phone number is registered on Facebook
Apple IDCheck if a phone number is registered as an Apple ID
AmazonCheck if a phone number is registered on Amazon
RCSCheck if a phone number supports RCS messaging
iMessageCheck if a phone number is registered on iMessage
GoToCheck if a phone number is registered on GoTo
MessengerCheck if a phone number is registered on Messenger
ThreadsCheck if a phone number is registered on Threads
ZaloCheck if a phone number is registered on Zalo
Naver BandCheck if a phone number is registered on Band
IndiatimesCheck if a phone number is registered on Indiatimes
HTXHT Number CheckerCheck if a phone number is registered on HTHtx Number CheckerCheck if a phone number is registered on HTX
SignalCheck if a phone number is registered on Signal
BinanceCheck if a phone number is registered on Binance
KuCoinCheck if a phone number is registered on KuCoin
CoinWCheck if a phone number is registered on CoinW
InstagramCheck Instagram account signals for list cleaning
X / TwitterCheck X / Twitter account signals for list cleaning
NetflixCheck Netflix account signals for list cleaning
Use these tools when the lookup starts from an email address and you need account existence, platform coverage, or consumer-brand verification.
FacebookCheck if an email address is registered on Facebook
Apple IDCheck if an email address is registered as an Apple ID
HTXCheck if an email address is registered on HTX
InstagramCheck if an email address is registered on Instagram
AmazonCheck if an email address is registered on Amazon
X / TwitterCheck if an email address is registered on X (Twitter)
NetflixCheck if an email address is registered on Netflix
SpotifyCheck if an email address is registered on Spotify
BinanceCheck if an email address is registered on Binance
KuCoinCheck if an email address is registered on KuCoin
CoinWCheck if an email address is registered on CoinW
Use bulk upload for list cleaning, or connect the API for batch jobs and single lookups inside your product and data pipelines.
Upload CSV/TXT files, paste a small list, or send identifiers through the API.
Run carrier, platform, account, registration, age, and risk checks against the selected dataset.
Export clean segments with status fields your marketing, CRM, compliance, and fraud teams can use.
Start free with single-number tools, then scale with volume pricing for bulk CSV files or API workflows. Pay only for the lookups you run.
View pricing detailsGrowth teams, agencies, CRM operators, fintech risk teams, and crypto projects use bulk verification to remove bad records before they become expensive.
"We clean WhatsApp and SMS lists before campaigns, which helps reduce wasted budget and improves delivery planning."
"Exchange account checks help us flag risky signup patterns before reward distribution."
"Bulk validation gives our sales team cleaner phone and email records before they hit the pipeline."
Guides, tool comparisons, and best practices for teams running bulk phone validation, carrier lookup, and account verification.
Learn when to use carrier data, active status, line type detection, bulk uploads, and API validation inside marketing and risk workflows.
Read guideUse API endpoints for phone validation, carrier lookup, WhatsApp checks, Telegram checks, and bulk asynchronous workflows.
curl -X POST https://api.bulkchecker.io/v1/jobs/phone-validation \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{"phones":["+14155550198","+442071838750"]}'
{
"job_id": "job_7f42",
"status": "processing",
"records": 2,
"download": "results.csv"
}