phoneveriflo
Products⌄
ProductsView all →
Phone validationValidate supported phone-number quality signals in bulk or API workflows.Email validationAdd supported email-validity signals to contact-data workflows.Number generatorGenerate dialer-ready candidate numbers by region, locality, carrier and line type.Bulk verificationUpload, preflight, quote, process, and export large lists.Developer APIFirst-party asynchronous jobs, results, idempotency, and webhooks.
Solutions⌄
SolutionsView all →
CRM cleaningNormalize and verify contact fields without destructive cleanup.SMS list cleaningFilter landlines, VoIP, and invalid numbers before broadcast campaigns.Signup verificationCatch bad contact data around onboarding without confusing it with OTP.Fraud preventionUse contact-data signals as explainable inputs in a broader risk model.Data migrationProfile and clean contact identifiers before CRM or warehouse cutover.Customer engagementPrepare cleaner, freshness-aware segments for downstream workflows.
Pricing
Developers⌄
DevelopersView all →
API documentationAuthentication, jobs, results, errors, limits, and idempotency.QuickstartCreate a small test job and handle the asynchronous lifecycle safely.Libraries & SDKsREST examples today; official SDK status is shown explicitly.WebhooksSigned events, retries, idempotent consumers, and delivery history.ChangelogCompatibility-aware product and API release notes.
Resources⌄
ResourcesView all →
Blog & guidesPractical phone, email, freshness, and API guides.ToolsE.164 formatter, CSV cleaner, deduplicator, and cost calculator.GlossaryPlain-language verification, cache, carrier, and API terms.CoverageService and country availability published only after verification.SupportDocs, status, account support, and sales help.
Company⌄
CompanyView all →
AboutWhy phoneveriflo is built around transparent verification workflows.SecurityImplemented application controls and production security boundaries.PrivacyPrivacy policy draft and data-handling framework.TermsService, API, billing, and acceptable-use terms framework.ContactSales, implementation, support, and product questions.
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phoneverifloMenu
ProductsPhone validation→Email validation→Number generator→Bulk verification→Developer API→
SolutionsCRM cleaning→SMS list cleaning→Signup verification→Fraud prevention→Data migration→Customer engagement→
DevelopersAPI documentation→Quickstart→Libraries & SDKs→Webhooks→Changelog→
ResourcesBlog & guides→Tools→Glossary→Coverage→Support→
CompanyAbout→Security→Privacy→Terms→Contact→
Pricing
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Workflow

How it works

From raw input to trusted verification results without pricing surprises.

1

Add your data

Step 1 of 4

Upload a supported file, paste records, or create a verification job through the API.

Drag and drop your contact file here

Supports .csv, .xlsx, .xls, .txt (up to 1,000,000 rows per job)

Or try a sample dataset:
Client-Side Confidentiality: File parsing, delimiter detection, and column mapping run in local memory before server submission.
Auto-Detected Column MappingReady for Preflight
Selected Datasetcustomer_leads_q3.csv
Total Candidate Rows10,000
File FormatCSV (UTF-8)
Mapped Schema Columns:
Col 1:idIdentifier
Col 2:phonePhone Candidate
Col 3:countryIdentifier
Col 4:nameIdentifier

Deterministic Normalization

E.164 and RFC parsing happens in local memory before upstream submission. Invalid records are dropped with zero fee.

Encrypted HMAC-SHA256 Cache

Cache keys are computed using HMAC-SHA256 with tenant isolation. Zero plain contact data is stored unencrypted at rest.

Double-Entry Ledger Invariant

All application accounting uses integer USD micros. Maximum quote is frozen before execution, with zero surprise fees.

Asynchronous Webhook Push

Handle high-volume jobs with signed HMAC-SHA256 webhooks, automatic retries, and strict idempotency keys.

Ready to verify your contact data?

Start with free preflight inspection. Review pricing before committing a single credit.

Start free preflight Read API documentation
phoneveriflo

Verification workflows with transparent preflight pricing, provider-neutral results, and visible freshness metadata.

Platform status

Products

Phone validationEmail validationNumber generatorBulk verificationDeveloper API

Solutions

CRM cleaningSMS list cleaningSignup verificationFraud preventionData migrationCustomer engagement

Developers

API documentationQuickstartLibraries & SDKsWebhooksChangelog

Resources

Blog & guidesToolsGlossaryCoverageSupport

Company

AboutSecurityPrivacyTermsContact
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