Telephone
Telephone is an API for validating, verifying and enriching phone numbers in real time.
What Telephone is
Telephone is an API for validating, verifying and enriching phone numbers in real time. It detects fake, invalid and disposable numbers, identifies carriers and line types such as mobile, landline, VoIP and toll free, and can return country, region, city and timezone data. Telephone states that it supports more than 190 countries. Developers can check one number through a GET endpoint or submit bulk validations through POST. Any HTTP client can call the service, so no SDK is required. The quickstart directs users to sign in with Google to obtain a default API key. Telephone claims sub-50ms responses, infrastructure scaling to 10,000 requests per second, 99.99% uptime and enterprise SLAs. Its product page says interactions use 256-bit SSL encryption and claims SOC 2 Type II and GDPR compliance. The Pro plan includes validation, carrier and line-type detection, location data, risk scoring and real-time API access at €24.99 per month after a seven-day trial; a card is required to start.
Good
- Detects fake and disposable numbers
- Supports more than 190 countries
- Single and bulk validation endpoints
- No SDK required
- Provides carrier and line-type data
Watch out
- No free plan
- Trial requires a payment card
- Privacy retention depends on plan and configuration
- Privacy policy is a template requiring legal review
Who it suits
Telephone suits developers and businesses that need real-time phone-number checks, carrier or line data, geographic details and bulk validation. It works with any HTTP client.
Verdict
Telephone provides broad phone-number validation and enrichment through straightforward HTTP endpoints. Its paid Pro plan adds risk scoring and stated uptime and compliance claims, while the trial offers seven days before monthly billing.
Plans and prices
From Telephone's own pricing page, checked 9 Oct 2001.
| Plan | Price | What it gives you |
|---|---|---|
| Pro | €24.99 a month | Phone number validation · Carrier & line type detection · Location & geo data · Risk scoring · 190+ countries · Real-time API · 99.99% uptime SLA · SOC 2 & GDPR compliant · Free for 7 days, then €24.99/month |
The facts
Each one read from Telephone's own pages, with the date it was checked.
What it does
- API access
- The service offers single-number GET validation and bulk POST validation endpoints.checked 9 Oct 2001
- Carrier and line type
- It identifies carriers and line types including mobile, landline, VoIP, and toll free.checked 9 Oct 2001
- Coverage
- Telephone states that it supports more than 190 countries.checked 9 Oct 2001
- Developer setup
- The quickstart instructs users to sign in with Google to obtain a default API key.checked 9 Oct 2001
- Geo data
- The API can return geographic information including country, region, city, and timezone.checked 9 Oct 2001
- Integration
- Any HTTP client can call the API, and Telephone says no SDK is required.checked 9 Oct 2001
- Latency and scale
- Telephone claims sub-50ms response times and infrastructure that scales to 10,000 requests per second.checked 9 Oct 2001
- Number detection
- The API detects fake, invalid, and disposable phone numbers.checked 9 Oct 2001
- Policy caveat
- The privacy policy describes itself as a template that should be reviewed by qualified legal counsel before being relied on for compliance.checked 9 Oct 2001
- Privacy
- The privacy policy says phone numbers submitted for validation are processed to provide the service and that retention details may depend on the plan and configuration.checked 9 Oct 2001
- Product
- Telephone provides an API to validate, verify, and enrich phone numbers in real time.checked 9 Oct 2001
- Reliability
- The site advertises 99.99% uptime and enterprise SLAs.checked 9 Oct 2001
- Security claims
- The product page says interactions use 256-bit SSL encryption and claims SOC 2 Type II and GDPR compliance.checked 9 Oct 2001
Money
- Trial terms
- Telephone advertises a seven-day trial with $0 due today and says a card is required to start.checked 9 Oct 2001
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