Telecom fraud prevention and network spam protection

Protect your network and subscribers with real-time fraud detection powered by carrier-grade data

96%

US & Canada coverage

15K+

New spam numbers daily

500ms

Average response time

Stop revenue leakage from fraud

See how carriers use CallerAPI to protect their network and increase ARPU

Your Network Today

$2.5M+ Annual Loss

Average revenue loss from fraudulent calls and network abuse

25% Customer Churn

Subscribers switching carriers due to spam calls

Regulatory Risk

Non-compliance with FCC STIR/SHAKEN mandates

With CallerAPI Protection

85% Fraud Reduction

Immediate impact on revenue protection and network efficiency

40% Higher NPS

Improved customer satisfaction and retention

New Revenue Stream

Premium caller ID services for subscribers

Real-time fraud detection

See the rich data you get for every number lookup

High Risk Number

+1 (888) 221-1161

Spam Score 100
Total Complaints 43
Government Impersonation 38%
Robocalls 24%
Medical & Prescriptions 16%
Friends Impersonation 12%
Other 10%
{
  "data": {
    "phone": "+18882211161",
    "is_spam": true,
    "spam_score": 100,
    "reputation": "SPAM",
    "total_complaints": 43,
    "complaints": [
      {
        "CreatedDate": "2025-03-22T16:01:58Z",
        "ConsumerState": "Missouri",
        "Subject": "Calls pretending to be government"
      },
      // ... more complaints ...
    ]
  }
}

What our customers say

"Glad to be working with the CallerAPI team! Excited to be making this a reality on a global scale!"

CallerAPI customer

Gideon Ebose

Co-Founder, Rulebase (YC F24)

"Choosing CallerAPI was a big upgrade to our phone fraud prevention system. We've seen a 40% increase in accuracy"

CallerAPI customer

Victor Saldarriaga

CTO, Vertical Technologies

Best price on the market

Basic

$25/mo

  • 5,000 API calls/month
  • 99% uptime
  • Pre-built code
  • No-code integrations
Get started
Most Popular

Premium

$99/mo

  • 20,000 API calls/month
  • Everything in Basic
  • Priority support
  • Access to Beta testing
Get started

Enterprise

$997/pay-per-use

  • 250,000+ API calls
  • Everything in Premium
  • Scalable pricing
  • KYC API
Talk to Founder

Caller ID API questions

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