How does carrier lookup optimize SMS delivery?

Knowing the carrier and circle lets you route messages through the best-performing aggregator per operator, improving OTP delivery rates and reducing SMS costs.

Can the phone number info API validate leads?

Yes. Verify the number, detect the region to qualify lead geography, and cross-check claimed location against telecom circle data to flag fake leads.

CommunicationOperational

Phone Number Info API

Retrieve telecom operator, region, state, reference city, and nearby mobile tower information from any Indian mobile number.

~185ms
Avg Response: 100%
Uptime: 99.9
Reliability Score

Try It Live

Live API PlaygroundSandbox

GET https://api.cstudio.sbs/v1/phone/info?phone_number=9876543210

Sandbox mode returns sample data. Get a free API key for live responses.

Key Features

Carrier detection
Region/State
Nearby tower info
Reference city & language

Endpoint

GET https://api.cstudio.sbs/v1/phone/info

Code Examples

cURL example

-string">"token-command">curl -X GET -string">"https://api.cstudio.sbs/v1/phone/info?phone_number=9876543210" \
  -H -string">"X-API-Key: YOUR_API_KEY" \
  -H -string">"Content-Type: application/json"

Sample Response

Sample Response JSON

{
  "number": "+91-9876543210",
  "country": "India",
  "sim_card": "BSNL (Bharat Sanchar Nigam Limited)",
  "connection": "Prepaid 4G SIM card",
  "mobile_state": "Punjab",
  "hometown": "Kapurthala, Punjab, India",
  "reference_city": "Malerkotla, Punjab, India",
  "language": "Punjabi",
  "helpline": "1800-180-1503",
  "owner_address": "Model Town, Jalandhar, Punjab 144001, India",
  "mobile_locations": "Sandhanwal (270), Mehngerwal (295), Bakainwala (125), Kamirpur (195), Chatriwala (184)",
  "tower_locations": "Sarangwal (267), Bakhlaur (199), Chhanga Khurd (298), Pallah (42), HAJIPUR"
}

Phone Number Info Pricing

Start with the free Basic plan — upgrade as you scale. To get an API key, message us on WhatsApp.

Basic

$0.00/mo

Requests: 5 / MonthHard Limit
Rate Limit: 1000 requests / hour

Start Free

Pro

$4.99/mo

Requests: 1,000 / Month
Rate Limit: Uncapped

Choose This Plan

Recommended

Ultra

$19.99/mo

Requests: 25,000 / Month
Rate Limit: Uncapped

Choose This Plan

Mega

$79.99/mo

Requests: 100,000 / Month
Rate Limit: Uncapped

Choose This Plan

Frequently Asked Questions

You get the telecom operator (Jio, Airtel, Vi, BSNL), connection type, telecom circle and state, hometown, reference city, language and nearby tower location data — all in ~185ms.

How to Integrate Phone Number Info API

1
Get your cStudios API key.
2
Send a GET request to /v1/phone/info?number=9876543210 with a 10-digit Indian mobile number.
3
Include your key in the X-API-Key header.
4
Receive telecom carrier name (Jio, Airtel, Vi, BSNL), telecom circle, state, and geographic reference city.
5
Optimize SMS OTP routing and score lead authenticity.

Phone Number Info API Use Cases

SMS OTP & Notification Routing

Detect recipient mobile network operator (Jio, Airtel, Vi) to route SMS OTPs through the lowest-latency, highest-delivery telecom gateway.

Lead Verification & CRM Enrichment

Enrich incoming sales leads with verified telecom circle, state, and city to assign regional sales representatives automatically.

Fraud & Risk Scoring

Detect roaming anomalies and verify geographic location consistency during remote user registration.

About Phone Number Info API

The Phone Number Info API by cStudios provides mobile number intelligence for Indian telecom networks. It identifies operator circles, network carriers, telecom regions, and location data in under 500ms, helping businesses optimize OTP deliverability and prevent lead spam.