Published interface
REST · v1
IDENTITY VERIFICATION
Reverse Phone Lookup API
Perform a reverse phone lookup to retrieve the registered name associated with a phone number. Validates the number, checks priority regional databases (IN, IL), and queries global CNAM networks.
50 free requests per application · monthly allowance.
YOUR NEXT INTEGRATION
REST
Built into your workflow.
GET
/calleridvalidation1 PUBLISHED ENDPOINTv1
- Trust score
- 75 / 100
- Versions
- v1
- Endpoints
- 1
02 THE BIGGER PICTURE
A closer look at
Reverse Phone Lookup API.
Perform a reverse phone lookup to retrieve the registered name associated with a phone number. Validates the number, checks priority regional databases (IN, IL), and queries global CNAM networks.
One application key
Provider credentials stay behind the gateway.
Plan visibility
Compare published rates and allowances before subscribing.
03 PUT CONTEXT TO WORK
Small steps.
Useful possibilities.
Where this API can fit into your application. Your product controls the decisions that follow.
Evaluate with your own workflow.
Review the published endpoints and parameters, then use the request builder to see how the provider responds to your input.
Connect an application.
Choose a plan and connect your application key in the request builder.
Understand the usage terms.
Compare the published allowances and rates before choosing a plan. Requests are metered against your subscription.
04 MADE FOR YOUR WORKFLOW
Your integration.
A straightforward start.
Choose an endpoint, subscribe, and connect your application key right in the request builder.
Endpoint documentation
GET /calleridvalidation
Validate phone number and lookup caller ID
Validates phone number and performs reverse caller ID lookup against regional and global CNAM databases.
Parameters
phone_numberRequired- query · string
Phone number in international E.164 format (e.g. +14155552671)
ipOptional- query · string
Optional client IP address for geo-routing
Integration facts
- No provider credentials are exposed to you
- Requests are metered against your plan
- Captured bodies are encrypted and kept 7 days
Live request
Request builder
Your first request starts here
Try Reverse Phone Lookup API with a free account.
50 free requests per application · monthly allowance. Create an account, connect an application, and activate your plan right here.
No payment details needed for this free allowance.
This endpoint does not accept a request body.
Sending calls the gateway for real: it authenticates your key, counts the request against your plan, and returns whatever the provider returns.
curl --request GET 'https://gateway.payloadapi.com/reverse-phone-lookup-api/v1/calleridvalidation' --header "Authorization: Bearer $PAYLOADAPI_KEY" --header 'Content-Type: application/json' --header 'X-Payload-Trace: enabled'Streamed response
Response
Send a request to inspect status, headers, timing, cost, and streamed body chunks.
05 A PLAN FOR YOUR NEXT STEP
Start with the right plan.
Choose a plan for your application. New here? Create your first application and get its API key as part of setup, right on this page.
LIVE PLAN01
Free
$0.00USD · Free allowance
- 50 requests per application
- Monthly allowance · subscription anniversary
- No payment or overage charges
Prices are shown in each plan’s published currency. Default usage rates can be overridden for individual endpoints.
06 GOOD TO KNOW
The details
before you begin.
Trust breakdown (75/100)View signals
- Upstream safety30 / 30 ptsPassed
Upstream origin and hosts passed all safety, allowlist, and SSRF restrictions.
- Specification completeness10 / 25 ptsNeeds attention
Endpoints manually defined without an OpenAPI specification.
- Duplicate protection20 / 20 ptsPassed
No name or upstream host collision detected against published listings.
- Provenance & standing15 / 25 ptsNeeds attention
Verified organization under review evaluation.
How do I get started?
Choose an available plan here. Select an existing application or create your first one during setup, save its API key, and activate your plan. Then use the key in the request builder. Requests call the gateway for real and count against your plan.
Do free requests reset every month?
Check the allowance period on each plan. A one-time allowance does not reset. A monthly free allowance renews on the subscription anniversary. Free allowances are per application.
Why are some plans unavailable for activation?
Their published pricing is available for comparison. Free allowances can be activated here; commercial plans with active checkout can be purchased. Custom enterprise tiers require contacting the provider directly.
What does the trust score tell me?
The score summarizes recorded catalog verification checks. Review the breakdown for individual signals; it is not an uptime or performance guarantee.