Carrier Lookup API

TLDR

Get carrier name, line type (mobile/landline/VoIP), and formatting details for any phone number via API.
5,000 free queries per month.

Here's a sample response:

{
  "is_valid_number": true,
  "line_type": "mobile",
  "carrier": "Verizon Wireless",
  "phone_number": "+12128148373",
  "national_format": "(212) 814-8373",
  "country_code": "US",
  "calling_country_code": "1",
  "mobile_country_code": "310",
  "mobile_network_code": "012"
}

❓ What is this?

A REST API that identifies the carrier and line type for any phone number worldwide. Send a phone number, get back carrier name, line type (mobile, landline, or VoIP), and number formatting details—all in clean JSON.

Perfect for SMS delivery optimization, fraud prevention, user verification, or any app that needs to know who owns a phone number.

❓ Why use it?

1. Generous Free Plan

5,000 queries per month. Free. No credit card required.

That's 5,000 carrier lookups every month at no cost. Build and test your phone verification system without upfront costs.

For comparison, NumVerify's free plan gives you just 100 requests/month. You get 50x more.

2. Affordable Pricing

Most carrier lookup APIs charge a premium. NumVerify charges $59.99/month for 50K requests. Twilio charges per lookup.

Our plans are simple and predictable:

$25 gets you 100K queries/month
$75 gets you 1M queries/month
$150 gets you 10M queries/month

3. 99.99% Uptime SLA

Phone verification needs to work every time. A failed lookup means a blocked signup or a missed fraud check.

We maintain a 99.99% uptime SLA. Your verification flow never breaks because of us.

❓ How to use it?

Simple REST API. Here's how it works:

Sign up on Omkar Cloud by visiting this link.
Visit the API Key Page.
Copy your API key.
Make a request with it:

cURL:

curl -X GET "https://carrier-lookup-api.omkar.cloud/lookup?phone=%2B14082292600" \
  -H "API-Key: YOUR_API_KEY"

Python:

import requests

phone = "+14082292600"
api_key = "YOUR_API_KEY"

response = requests.get(
    "https://carrier-lookup-api.omkar.cloud/lookup",
    params={"phone": phone},
    headers={"API-Key": api_key}
)
print(response.json())

JavaScript (Node.js axios):

import axios from "axios";

const phone = "+14082292600";
const apiKey = "YOUR_API_KEY";

const response = await axios.get("https://carrier-lookup-api.omkar.cloud/lookup", {
    params: { phone },
    headers: { "API-Key": apiKey }
});
console.log(response.data);

Get carrier data and use it.

That's it. Phone number to carrier info in milliseconds.

API Reference

Endpoint

GET https://carrier-lookup-api.omkar.cloud/lookup

Parameters

phone (required, string):
The phone number to look up. Include country code. Example: +14082292600.

Response

Returns carrier details, line type, and number formatting:

{
  "is_valid_number": true,
  "line_type": "mobile",
  "carrier": "Verizon Wireless",
  "phone_number": "+12128148373",
  "national_format": "(212) 814-8373",
  "country_code": "US",
  "calling_country_code": "1",
  "mobile_country_code": "310",
  "mobile_network_code": "012"
}

❓ What data does the API return?

You get:

is_valid_number — Whether the phone number is valid (true/false)
line_type — The type of phone line: mobile, landline, or voip
carrier — The carrier name (e.g., "Verizon Wireless", "AT&T", "T-Mobile")
phone_number — The number in E.164 international format
national_format — The number formatted for local use (e.g., "(212) 814-8373")
country_code — ISO country code (e.g., "US", "JP", "IN")
calling_country_code — The country dialing code (e.g., "1" for US)
mobile_country_code — MCC identifying the country of the mobile network
mobile_network_code — MNC identifying the specific carrier

All in structured JSON. Ready to use in your app.

❓ How accurate is the data?

The API queries real-time telecom databases to identify carriers and line types.

This is the same data source used by SMS gateways and telecom companies for routing decisions. You get production-grade accuracy.

❓ Can I detect VoIP/landline/mobile numbers?

Yes. The line_type field tells you exactly what kind of number it is:

mobile — Cell phone number
landline — Traditional fixed-line number
voip — Voice over IP number (Google Voice, Skype, etc.)

This is critical for SMS delivery. You can't send SMS to a landline. Filter those out before you send and save money on failed messages.

❓ What are common use cases?

SMS Delivery Optimization — Check if a number is mobile before sending SMS. Skip landlines and VoIP numbers to cut failed delivery costs.

Fraud Prevention — Flag VoIP numbers during signup. Fraudsters often use disposable VoIP numbers to create fake accounts.

User Verification — Confirm a phone number is valid and identify the carrier before sending OTP codes.

Data Enrichment — Add carrier and line type data to your customer database for better segmentation and analytics.

❓ Do you support international phone numbers?

Yes—send the number in E.164 format (a + followed by country code and the 10 digit number).

Example: +447911123456, +14082292600, +919999999999.

❓ Tell me about Omkar Cloud.

We're an API services company with 20+ tools for OCR, document processing, and developer APIs. Some things we are proud of:

We built Botasaurus, an open-source Python framework with 3.7K+ GitHub stars
Sponsored by 1000+ developers on GitHub

❓ How much does it cost?

Free — $0 — 5,000 queries/month
Starter — $25 — 100,000 queries/month
Grow — $75 — 1,000,000 queries/month
Scale — $150 — 10,000,000 queries/month

Why we're affordable: Low overhead. We run lean and pass the savings to you.

Note: You get 5,000 free queries every month. Most users find this covers their needs.

❓ How do I get a refund?

If the product doesn't meet your needs within 90 days, get a refund in 2 clicks.

Go to Transactions Page
Click "Request Refund"
Confirm by clicking Request Refund again. The amount will be refunded within 1-2 business days. We'll email you updates.

No emails. No explanations. Simple 2-click process.

❓ Is there a catch in refunds?

No catch.

It's a simple 2-click process, exactly as described above.

Questions? We have answers.

Reach out anytime. We will solve your query within 1 working day.