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Messenger & social checks

How to bulk-check Microsoft numbers — microsoft on Cheker.pro

Microsoft Checker (microsoft): Microsoft account verification. Bulk Microsoft checks from 1,000 lines, CSV export & Reseller API on Cheker.pro.

2026-05-10 · 4 min

  • #microsoft
  • #cheker.pro
  • #bulk check
  • #phone checker
  • #mass verification
  • #phone intelligence
  • #reseller api

Bulk-check microsoft shows who to reach on messenger vs SMS.

Microsoft Checker (microsoft) is Cheker.pro bulk Microsoft verification. This guide covers mass phone checks, microsoft API, phone intelligence, list hygiene before SMS/messengers, and CSV export for CRM.

Who it is for

Microsoft Checker is used by SMS hubs, performance marketing, crypto compliance, call centers and SaaS with Reseller API. If your pipeline segments «has Microsoft / not» — this task type covers bulk at scale.

What Microsoft Checker does

Microsoft account verification. Each input line becomes one CSV row with result fields.

Task type: microsoft. Family: Microsoft. Input type: phone.

Pricing and output on Microsoft Checker landing. Run tasks in dashboard.

Input file format

Upload TXT or CSV: phone numbers in international format (E.164 recommended, e.g. +14155552671). One file = one country only (country code in every line: Brazil 55, US 1, Russia 7).

  • Minimum: 1,000 lines per task
  • Maximum: 10,000,000 lines (large files auto-split)
  • E.164 recommended: +country code, no spaces or brackets
  • See format preview in the upload form at Microsoft Checker

Do not mix phone, email and username in one file. From Excel export a single column to CSV — avoid formulas and scientific notation.

Output fields

  • Number
  • microsoft: yes/no

Interpret Number · microsoft: yes/no with a clear rule: «yes» → Microsoft channel candidate; «no» → SMS/email fallback or exclude from campaign.

Use cases

  • Antifraud adds microsoft to risk score.
  • Marketing runs a separate sequence for "Microsoft: yes".
  • Antifraud adds microsoft to risk score.

How to run a check

  1. Sign up at Cheker.pro and top up USDT
  2. Open Microsoft Checker — TXT/CSV upload form
  3. Wait for completion in «Мои задачи»
  4. Download CSV into CRM / SMS hub / BI
  5. Automation: Reseller APImicrosoft

Common mistakes

  • Local format without country code → false «no» results.
  • Mixed countries in one file → API rejection or wrong output.
  • Confusing Microsoft registration with «number is reachable» — different signals.
  • Treating «no» as permanent block without re-check after 7–14 days.
  • Bulk-check without legal basis (GDPR / local telecom rules) — validation does not replace consent.

Reading yes/no

"No" on Microsoft may mean no account, privacy settings, or upstream lag. Do not auto-block on one field alone.

FAQ

How is Microsoft Checker different from other Microsoft checkers?

Task type microsoft: Microsoft account verification. Output: Number · microsoft: yes/no. Compare family variants in the checker catalog and microsoft landing.

Minimum batch size and file format for microsoft?

Minimum 1,000 lines. phone numbers in international format (E.164 recommended, e.g. +14155552671). One country per file. Format hints on the upload page.

How much does Microsoft Checker cost?

Pay-as-you-go USDT: per-line billing at checker rate. Current price per 10k lines on the microsoft card and dashboard after top-up.

API for Microsoft Checker?

Yes. Reseller API: POST /api/v1/check with task type microsoft. Keys: API keys, docs: /docs.

Is bulk checking legal?

Use only lists with opt-in or other lawful basis (GDPR, local rules). Cheker.pro acts as processor on your instructions; you define retention and consent policy.

Summary: Microsoft Checker is the bulk layer for Microsoft. Catalog: microsoft · run → · Cheker.pro blog

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