Validate contacts, cut costs and maximize reach with Number Lookup

All conversational channels

High-precision mobile number validation for diverse use cases

Explore CEQUENS Number Lookup's applications in diverse industries. From eCommerce to governments, mobile operators, developers, elections, and SMS aggregators, our tool provides real-time insights to boost engagement, streamline communication, and cut costs. Unveil the potential of precise mobile subscriber data with our reliable API solutions.

Global expansion unleashed 

Extend your reach with number lookup: Tap into 700+ carrier connections and 85+ networks in the Middle East and Africa. Connect with your target audience with precision.

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Seamless engagement unlocked 

Seamless customer activation with CEQUENS Number Lookup: Real-time validation through HLR Lookup. Instantly connect with active mobile phones for effortless engagement.

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Conversion supercharged 

Supercharge conversions using CEQUENS Number Lookup: Leverage MNP Routing for accurate carrier insights. Elevate customer service and marketing with enhanced data.

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Fraud prevention

Fortify fraud prevention efforts with number lookup: Identify suspicious numbers and mitigate risks by cross-referencing with global databases. Safeguard your platform and customers.

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Powerful capabilities of CEQUENS Number Lookup

Discover Number Lookup's dynamic features. From real-time HLR lookup for number validation to mobile number portability routing for carrier identification, optimize efficiency, cut costs, prevent fraud, and gain precise customer insights. Elevate customer engagement with CEQUENS Number Lookup.

Real-Time Home Location Registering (HLR) Lookup

Real-time home location register (HLR) lookup

Instantly validate mobile phone numbers and determine their status and location in real-time with CEQUENS' HLR lookup service.

Verify if mobile phone numbers are valid and active

Identify deactivated or switched-off mobile phones

Obtain roaming status for efficient communication

Mobile Number Portability (MNP) Routing

Mobile Number Portability (MNP) routing

Benefit from accurate carrier information and enhance your customer service and marketing efforts with CEQUENS' MNP routing.

Determine the current carrier of a mobile phone number

Validate phone numbers for improved marketing campaigns

Enhance customer service with carrier-specific insights

Reduced Delivery Issues

Reduced delivery issues

Minimize message delivery issues and optimize messaging costs with CEQUENS Number Lookup APIs.

Ensure accurate delivery to active and reachable mobile phones

Improve overall message delivery success rates

Eliminate the wastage of resources caused by undelivered messages

Fraud Prevention

Fraud prevention

Mitigate fraud risk with CEQUENS's powerful phone number validation capabilities, preventing fraudulent activity. 

Verify the validity of phone numbers

Ensure secure and reliable communication with authenticated numbers

Protect your business and customers from potential threats

Enhanced Customer Insights

Enhanced customer insights

Obtain valuable customer insights with Number Lookup, leading to improved customer engagement and satisfaction. 

Access accurate customer information for better personalization

Empower customer service agents with account history and recent interactions

Use data-driven decisions to optimize customer retention strategies


Validation accuracy


Fraud detection rate


Messaging costs

For Developers

Number Lookup API: Real-time mobile number verification

The Number Lookup API offers developers seamless real-time mobile number verification. Validate phone numbers, identify status, carrier information, and roaming status instantly. Improve communication efficiency, reduce costs, and prevent fraud with precision and security. Simplify integration with flexible and scalable interfaces and enjoy dedicated customer support. Elevate customer engagement with CEQUENS Number Lookup API.

Explore our API
                        const options = {method: 'GET', headers: {accept: 'application/json'}};

fetch('', options)
  .then(response => response.json())
  .then(response => console.log(response))
  .catch(err => console.error(err));
                        require 'uri'
require 'net/http'

url = URI("")

http =, url.port)
http.use_ssl = true

request =
request["accept"] = 'application/json'

response = http.request(request)
puts response.read_body
                        request('GET', '', [
  'headers' => [
    'accept' => 'application/json',

echo $response->getBody();
                        import requests

url = ""

headers = {"accept": "application/json"}

response = requests.get(url, headers=headers)

                        using RestSharp;

var options = new RestClientOptions("");
var client = new RestClient(options);
var request = new RestRequest("");
request.AddHeader("accept", "application/json");
var response = await client.GetAsync(request);

Console.WriteLine("{0}", response.Content);

                        OkHttpClient client = new OkHttpClient();

Request request = new Request.Builder()
  .addHeader("accept", "application/json")

Response response = client.newCall(request).execute();
                        package main

import (

func main() {

	url := ""

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("accept", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)



Enhance communication efficiency and customer experience

CEQUENS Number Lookup enhances communication efficiency and customer experiences. Real-time number verification ensures reliability, cuts costs, and prevents fraud. Gain insights, optimize marketing, and integrate the API seamlessly.

Reliable delivery

CEQUENS Number Lookup ensures reliable message delivery through real-time number verification. Validate phone numbers to reduce delivery issues, enhance engagement, and optimize communication efficiency.

Cost efficiency

CEQUENS Number Lookup optimizes messaging costs by identifying valid numbers in real time. Avoid sending messages to invalid numbers, save resources, and allocate your budget efficiently, resulting in cost savings.

Fraud prevention

CEQUENS Number Lookup prevents fraud with accurate mobile number verification. Validate numbers to detect and mitigate potential fraudulent activities, ensuring secure operations and customer safety with industry-standard features and compliance.

Discover how our solutions have transformed businesses and facilitated seamless connections


“ Through CEQUENS’s solutions we were able to engage with our customers across their channel of preference, providing them with a convenient and reliable suite of solutions to deal with queries, pricing, delivery, and complaints. We look forward to working on more marketing strategies with their solutions.”

Ayman Shamout.

Ayman Shamout



“ As a communication-driven team in Decathlon, our mission is to spread our message to communities. By utilizing CEQUENS's SMS API solutions, we were able to connect with existing customers and onboard new customers rapidly and efficiently, inviting them to be part of the Decathlon experience with one click.”

Carole Nady.

Carole Nady

Head - Digital Marketing


“ We are tech-based startup in the food industry, and are always looking for partnerships that can provide us with the needed agility, dependability, and quality of service that helps us grow in an extremely competitive and demanding market. Working with CEQUENS has been super fulfilling and rewarding for us.”

Muhammed Sayed.

Muhammed Sayed

Marketing Manager

CEQUENS Number Lookup

Detect invalid, unreachable and outdated contacts in your databases and verify their validity to increase your message delivery rates.

CEQUENS Number Lookup

Detect invalid, unreachable and outdated contacts in your databases and verify their validity to increase your message delivery rates.

Pay as you go


10 Million+


20 Million+


30 Million+


50 Million+


Get Started

Thousands of businesses rely on our cloud communications platform to build stronger customer connections.

Get started See plans & pricing

Frequently asked questions

Find answers to common questions about our Number Lookup API and how it can benefit your business. If you have any other queries or need more information, feel free to reach out to our dedicated support team.

Integrating CEQUENS Number Lookup API is seamless and straightforward. Our API supports multiple interfaces, making it easy for developers to integrate it into your existing systems efficiently.

Yes, CEQUENS provides dedicated customer support to assist you with the API implementation. Our team is available to address any queries and provide real-time support throughout the integration process.

Absolutely! CEQUENS Number Lookup API is designed to be flexible and scalable, catering to the needs of businesses of all sizes, from startups to large enterprises.

CEQUENS is committed to data privacy and compliance. Our Communication Platform follows industry standards, including PCI/DSS compliance and ISO certification, ensuring the security of your data.

Yes, CEQUENS offers a trial period and demonstrations for the Number Lookup API. Contact our sales team to request a trial or schedule a demo to experience the benefits firsthand.

Yes, CEQUENS Number Lookup API supports international numbers, allowing businesses to verify and validate mobile phone numbers globally.