Twilio Phone Number Lookup

How to Identify Twilio Numbers Using Abstract API

A reliable way to detect if a U.S. number belongs to Twilio is by using Abstract's Phone Number Validation API. This tool can identify the carrier for any given phone number.

Sign Up for Abstract API and Get Your Key

First, sign up for a free account with Abstract API. You can get your unique API key from your account dashboard.

Send a Request to the API

Use your API key to send a GET request to the validation endpoint. Below are examples in Python and JavaScript that show how to check a number.

Python Example:

import requests

response = requests.get(
"https://phonevalidation.abstractapi.com/v1/",
params={"api_key": "YOUR_API_KEY", "phone": "+15558675309"}
)
data = response.json()
print(data["carrier"])  # Will print "Twilio" if it’s a Twilio number

JavaScript Example:

const axios = require("axios");

axios.get("https://phonevalidation.abstractapi.com/v1/", {
params: {
api_key: "YOUR_API_KEY",
phone: "+15558675309"
}
}).then(response => {
console.log(response.data.carrier);  // Should output "Twilio"
});

Interpret the API Response

After sending a request, you will receive a JSON response with details about the phone number. The response will look like this:

{
  "phone": "+15558675309",
  "valid": true,
  "country": "United States",
  "location": "California",
  "carrier": "Twilio",
  "line_type": "mobile"
}

Here is a breakdown of the key fields in the response:

• phone - Provides the phone number in a standardized international format.
• valid - Confirms if the phone number format is correct. The value "true" indicates a valid number.
• country - Shows the country associated with the number, which is the United States.
• location - Gives a more specific geographical area for the number.
• line_type - Identifies the type of phone line. The value "mobile" means it is a cell phone number.
• carrier - Names the telecommunications provider for the number.

To confirm the number belongs to Twilio, check that the carrier field returns "Twilio".

Why Identifying a Twilio Phone Number Is Important

Identifying a Twilio number helps businesses validate user identity and optimize communication channels.

• Fraud Prevention - This verification helps prevent fake account sign-ups and protects against potential security breaches.
• Improved Deliverability - This check confirms a number is active and reachable, ensuring that important messages and notifications are successfully delivered.
• Cost Optimization - This validation filters out invalid or inactive numbers from contact lists, reducing unnecessary spending on undelivered communications.
• Enhanced User Experience - This process ensures communication goes to the correct, active number, which provides a smoother onboarding and builds user trust.

Why Use Abstract API for Twilio Phone Number Lookup?

For businesses that need a reliable way to validate Twilio numbers, Abstract API offers a robust and accurate solution. It provides detailed data points with high uptime and global coverage.

• Extensive Global Coverage - The API supports numbers from over 190 countries. This allows businesses to validate users from almost anywhere in the world with a single tool.
• High-Speed Performance - The system returns validation results in milliseconds. Fast response times help maintain a seamless user experience during sign-up or verification flows.
• Bank-Level Security - All data transmissions use 256-bit SSL encryption. This protects sensitive user information and helps businesses meet compliance standards.
• Detailed Data Response - Each request returns rich information, including carrier and line type. This data helps businesses tailor communication methods for better engagement and reliability.