Bulk Phone Validator
Upload a CSV of phone numbers and validate them all for format and deliverability at once.
Real-world view of the Bulk Phone Validator in action
Based on verified reviews
Bulk Phone Validator Features
CSV Upload
Upload a CSV file with phone numbers.
Batch Processing
Process up to 100,000 numbers at once.
Multi-Layer Checks
Format, carrier, and line type validation.
Export Results
Download results as CSV or Excel.
How Bulk Phone Validation Works
Validate thousands of phone numbers at once
Use Bulk Phone Validator everywhere
Web app, spreadsheets, REST API, or automation pick what fits your workflow.
Trusted by the best sales teams in the world
See why thousands of sales professionals choose Tomba for bulk operations.
Tomba is my go-to to validate emails. Even in a waterfall process with multiple tools, Tomba is usually the top choice.
The data is always fresh, and the n8n integration is excellent. Support is very responsive. I'd rate it 9/10.
We use Tomba to find emails of the right people, helping us reach out and grow our network easily.
Since years, Tomba has provided the most results per search, and it keeps getting better. It recently became one of the most feature-rich tools for our list building.
Built for serious volume
Process large files fast and reliably. No timeouts, no limits, no hassle.
Lightning Fast
Validate 100,000 phone numbers in minutes. Format checks and carrier lookups run massively in parallel.
Big File Ready
Upload CSV files with up to 100,000 rows. No file size limits, no timeouts, no crashes.
Auto-Retry on Failure
If a validation fails, Tomba retries automatically. You never lose progress on large batch jobs.
99.9% Uptime
Enterprise-grade infrastructure ensures your bulk jobs complete reliably, every single time.
How much will you save with Tomba?
Enter your monthly credit needs and compare real costs across tools.
With Tomba you also get free verification credits on top other tools charge extra for that.
Your savings every month and year
Keep the same monthly volume and switch to Tomba.
vs Hunter
vs BetterContact
vs FullEnrich| Tool | Price/mo | Per 1K credits | Verification | Phone | Accuracy | You save |
|---|---|---|---|---|---|---|
 TombaBest value Total credits (finder + free verification included) | $89 | $8.90 | Included | 99% | ||
Hunter Verification costs 0.5 credits extra | $149 | $14.90 | Extra | 90% | -$60 40% cheaper | |
 Apollo.io Per user, min 3 users, annual only. Extra credits $0.20 each | $445 | $44.50 | Extra | 55% | -$356 80% cheaper | |
 Snov Verification costs 1 credit extra | $199 | $19.90 | Extra | 87% | -$110 55% cheaper | |
 RocketReach Per user. Overages $0.30-$0.45/lookup | $209 | $20.90 | Extra | 82% | -$120 57% cheaper | |
 Lusha Per user. Phone = 5 credits each | $199 | $19.90 | Extra | 83% | -$110 55% cheaper | |
BetterContact Waterfall enrichment. Phone included but costs extra credits | $349 | $34.90 | Extra | 55% | -$260 74% cheaper | |
FullEnrich Waterfall enrichment. Phone available, no verification credits | $449 | $44.90 | Extra | 58% | -$360 80% cheaper |
What's included with Tomba at no extra cost
At 10,000 credits/mo , you save up to $360/mo compared to FullEnrich.
More Valid Emails Than Every Competitor
Real data. Same input. No human touch. Full transparency. We ran a head-to-head test using the same 5,000-line input file across multiple email-finding tools.
Tomba.io
Anymailfinder
Findymail
GetProspect
Skrapp
VoilaNorbert
HunterSnov
ProspeoEnriched from a random file of 5,000 leads. For each provider, only emails labelled as verified or valid were counted.
View raw data spreadsheetTomba.io ranks #1 globally in total valid emails found, with the highest accuracy across both websites and companies.
Start bulk phone validator now
Upload your first file for free. 75 free credits no credit card required.