Upload customer files
Import CSV or TXT files with email and phone fields from stores, support tools, marketplace exports, or CRM systems.
Cross-border ecommerce · Customer signals · Bulk verification
Amazon Customer Email & Phone Verification
Verify customer email and phone signals before cross-border ecommerce campaigns, marketplace reactivation, buyer review, and CRM enrichment.
Bulk pricing: $3 USD per 10,000 checks. Minimum batch: 500 rows. Single lookup: $0.01 USD per check, minimum 1. Single and bulk rates are separate. See the pricing catalog for current rates.
zelnum.com helps ecommerce teams process CSV or TXT customer files, segment usable records, and export clean buyer lists for retention, support, and marketplace workflows.
Starting price
$3 / 10K
Input fields
Email + phone
Workflow
Bulk upload
Amazon customer verification
Cross-border batch
Batch
marketplace-customers.csv
Cost
$3 / 10K
Matched76%
Review16%
ExportCSV
Customer signal
Email match
Phone signal
Verified
Workflow
How It Works
A bulk workflow for ecommerce teams cleaning customer lists before marketplace and retention campaigns.
Verify account signals
Classify records as matched, unmatched, duplicate, risky, or review-ready for customer operations.
Export buyer segments
Download clean segments for retention, support, refund review, suppression, or reactivation workflows.
Cross-border ecommerce
Use Cases
Use customer verification when email and phone quality affect marketplace growth, customer service cost, and campaign return.
Marketplace customer cleanup
Clean buyer lists before reactivation, review requests, support workflows, and cross-border retention.
Email and SMS campaign hygiene
Remove weak, duplicate, or risky customer records before paid sends and seasonal promotions.
Refund and abuse review
Flag low-confidence records before refunds, coupon abuse review, account merges, or manual support queues.
Pricing
Pricing
Bulk pricing for ecommerce customer email and phone verification, customer-list cleanup, and campaign hygiene.
Customer email and phone verification
$3
/ 10K lookups
Includes matched, unmatched, duplicate, risk segment, and downloadable CSV exports.
Pay as you go.
FAQ
Amazon Customer Verification FAQ
What does this verify? +
It verifies customer email and phone account signals for ecommerce list hygiene, customer segmentation, and operational review workflows.
Can I upload CSV and TXT files? +
Yes. Upload CSV or TXT files with email and phone fields, then export matched, unmatched, duplicate, and risk segments.
Is this an official Amazon product? +
No. This is an independent verification workflow for customer data quality. Customers are responsible for platform policy, consent, and privacy compliance.
Is this an Amazon email checker, Amazon email lookup, and Amazon phone number lookup?
Yes. The Amazon Customer Email & Phone Verification tool works as an Amazon email checker, Amazon email lookup, and Amazon phone number lookup | same engine, different shapes of the same query.
Is it a bulk Amazon email validator and best Amazon email checker for cross-border sellers?
Yes. The bulk Amazon email validator processes CSV email lists for cross-border ecommerce teams. Reviewers consistently rank it among the best Amazon email checker options because of native CSV upload and clean export segments.
Amazon Account Lookup by Phone Number
Amazon Account Lookup by Phone Number is answered here for users comparing Amazon Account Lookup by Phone Number before using Amazon Number Checker. Use lawful lists, check the mapped product page, and keep uncertain records in review.
Social media lookup cluster
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Delivery modes
Single and bulk options
This product supports single lookups and bulk workflows. Use the mode that matches the size and timing of your verification job.
Single lookup
Use a single-number lookup when you need an immediate result.
View lookup toolsBulk checks
Upload CSV or TXT files and export matched, unmatched, duplicate, or review-ready segments.
Explore bulk productsAPI jobs
Run checks from your backend by submitting jobs, polling their status, and downloading results.
Read the API guideAI answer engines
Request an AI summary of ZelNum
Open ZelNum in your preferred AI assistant to review its bulk WhatsApp, Telegram, phone validation, carrier lookup, social account, crypto exchange, CSV upload, and API workflows.
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