MAX Messenger Number Checker

Built by Clearpath, creators of WhatsApp Number Validator and Telegram Number Validator, with 11,000+ combined lifetime runs across those two actors. Check your MAX contacts with the same team's phone-data tools.

Why choose this actor?

• Check up to 100,000 numbers per run. Get MAX registration status for each checked number: registered, unregistered or unknown. Results include the normalized phone number, country code and check time.
• Turn a spreadsheet into a checked contact list. Upload CSV/XLSX or paste your numbers. Automatic phone-column detection, number formatting and duplicate removal prepare the batch. Invalid and non-mobile entries are identified as skipped.
• Export the contacts registered on MAX. Enable onlyRegisteredNumbers to return registered accounts, or keep all statuses for review. Download JSON, CSV or Excel to update your CRM or contact list.

See the three registration statuses

{
  "testMode": true
}

Open actor input and keep Test Mode enabled to inspect three fixed sample records. No real numbers are checked or billed as number checks. For real checks, disable Test Mode and provide 1,000–100,000 valid unique mobile numbers on a paying Apify account. Set defaultCountryCode when your list uses national-format numbers.

unknown means the check was inconclusive. Registration does not establish recent account activity. Registered-only filtering still bills every number checked. See pricing for current charges.

Clearpath · Phone & Account Intelligence
MAX You are here	Telegram Usernames & Premium	WhatsApp Account checks	Phone Status Active-number checks

Copy to your AI assistant

clearpath/max-messenger-number-checker on Apify. Bulk MAX messenger registration checks returning registered, unregistered, or unknown per number. Call ApifyClient("TOKEN").actor("clearpath/max-messenger-number-checker").call(run_input={...}), then client.dataset(run["defaultDatasetId"]).list_items().items. Real runs need testMode=false and 1,000-100,000 unique numbers via phoneNumbers or csvFile. Full spec: GET https://api.apify.com/v2/acts/clearpath~max-messenger-number-checker/builds/default (Bearer TOKEN) → inputSchema, actorDefinition.storages.dataset, readme. Token: https://console.apify.com/account/integrations

Quick Start

Preview sample output without checking real numbers:

{
  "testMode": true,
  "phoneNumbers": ["+79161234567"]
}

Check a direct list (abbreviated below; real runs require at least 1,000 valid unique mobile numbers):

{
  "testMode": false,
  "phoneNumbers": [
    "+79161234567",
    "+79169876543"
  ],
  "onlyRegisteredNumbers": false
}

Upload CSV/XLSX with at least 1,000 valid unique mobile numbers and apply a default country code:

{
  "testMode": false,
  "csvFile": "uploaded-file.csv",
  "defaultCountryCode": "7",
  "onlyRegisteredNumbers": true
}

Input

For real runs, at least one of phoneNumbers or csvFile is required.

The actor is fully hosted on Apify. You provide phone numbers or an uploaded file; no extra credentials are required.

Parameter	Type	Description
testMode	boolean	Returns fixed sample output without real checks or number-check charges.
phoneNumbers	array	Phone numbers with country code. Real runs require at least 1,000 unique numbers and process the first 100,000 after dedupe.
csvFile	string	Uploaded CSV or Excel file with phone numbers.
defaultCountryCode	string	Country code to prepend to numbers without a + prefix.
onlyRegisteredNumbers	boolean	Output only numbers where maxStatus is registered.

CSV/Excel File Requirements

• Supported formats: .csv, .xlsx
• Delimiters: Comma, semicolon, tab, pipe (auto-detected)
• Column detection: Automatically finds phone columns including:
  • Standard: phone, mobile, cell, tel, telephone, whatsapp
  • Variations: phone number, mobile number, cell phone, contact number
  • CRM exports: mobile phone, direct phone, work phone, personal phone, primary phone
  • International: telefon, telefono, téléphone, celular, handy
• No headers? Scans content to find phone-like columns automatically

Output

{
  "phoneNumber": "+79161234567",
  "originalInput": "+7 916 123 4567",
  "countryCode": "RU",
  "isValidFormat": true,
  "maxStatus": "registered",
  "isRegistered": true,
  "checkedAt": "2026-06-10T08:00:00Z"
}

Output Fields

Field	Description
phoneNumber	Normalized E.164 phone number (null when the input could not be read as a valid number).
originalInput	Original value supplied by the user.
countryCode	Detected country code (null for unreadable numbers).
isValidFormat	Whether the input was recognized as a valid phone number.
maxStatus	registered, unregistered, or unknown; null when the number was not checked.
isRegistered	true when registered on MAX, false when unregistered, null when unknown or not checked.
skipReason	Why a number was not checked: not_mobile (landline or other non-mobile line) or invalid_format (could not be read); null for checked numbers.
checkedAt	ISO timestamp of the check.

MAX accounts only exist on mobile numbers. Landlines and other non-mobile lines are listed with skipReason: "not_mobile", and numbers that cannot be read are listed with skipReason: "invalid_format". These rows are not submitted for checking and are never charged, so nothing in your input silently disappears. Only mobile numbers count toward the per-run minimum.

Pricing

The actor charges one number_checked event per number checked. See the Pricing tab for current plan-specific rates. Real checks require a paying Apify account.

Duplicates are removed before checking. Number-check charges apply to every number checked, including unknown results and numbers excluded by registered-only filtering.

Notes

• unknown means the registration status could not be determined for that number; it still counts as a checked number.
• Uploaded CSV/XLSX files can use common phone columns such as phone, mobile, or telephone.
• onlyRegisteredNumbers filters output rows, but billing still applies to every checked number.

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FAQ

Q: What is MAX? A: MAX is a messaging platform. This actor checks, in bulk, which phone numbers have a registered MAX account.

Q: How accurate are the results? A: Statuses reflect MAX registration at the time of the check.

Q: What countries are supported? A: Worldwide. Numbers must include a country code, or set defaultCountryCode for national-format lists.

Q: How fast is it? A: A 1,000-number batch typically completes within a few minutes. Larger batches scale accordingly.

Q: What about duplicates? A: Auto-removed after normalization. You are only charged for unique numbers.

Q: What does unknown mean? A: The registration status could not be determined for that number. It still counts as a checked number.

Q: Is there a minimum batch size? A: Yes, 1,000 unique numbers per run. The maximum is 100,000.

Q: My run failed and said none of my numbers were checked. What should I do? A: That is a temporary problem on our side, not a problem with your list. None of your numbers were checked, so none were charged. Leave your list as it is and start the run again in a few minutes.

Related Actors

More from Clearpath (Email tools):

• Email Account Checker - Check emails for real account registration on Gmail, Outlook, Yahoo, iCloud, Mail.ru.
• Email Address Validator - Bulk email deliverability validation (syntax, MX, SMTP, catch-all, disposable).
• Email Finder & Verifier - Find and verify B2B email addresses by name and domain.

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📧 Support

• Email: max@mapa.slmail.me
• Feature Requests: Email or submit via issues
• Response Time: Typically within 24 hours

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Legal

This actor checks MAX messenger registration status. Users are responsible for complying with applicable data protection regulations (GDPR, CCPA) when processing phone number lists.