Skip to main content
GET
/
v3
/
internet
/
check-number
Validate Phone Number
curl --request GET \
  --url https://api.oneclickdz.com/v3/internet/check-number \
  --header 'X-Access-Token: <api-key>'

​
Overview

Validates phone numbers for ADSL or 4G services before submission. Helps prevent errors and reduces refund issues.
Always validate phone numbers before submitting top-up requests to minimize failures.

​
Query Parameters

​
type
string
required
Service type: ADSL or 4G
​
number
string
required
Phone number to validate - ADSL: 0[0-9]{8} (e.g., 036362608) - 4G: 213[0-9]{9} (e.g., 213472731602)

​
Response

​
Valid ADSL Number

{
  "success": true,
  "data": {
    "ncli": "11022*****",
    "offre": "FTTc-b_10M'",
    "type": "ADSL"
  },
  "meta": {
    "timestamp": "2025-10-29T00:36:48.823Z"
  }
}

​
Valid 4G Number

{
  "success": true,
  "data": {
    "ncli": "11034*****",
    "type": "4GLTE"
  },
  "meta": {
    "timestamp": "2025-10-29T00:36:49.847Z"
  }
}

​
Invalid Number

{
  "success": false,
  "error": {
    "code": "ERR_PHONE",
    "message": "Invalid phone number for ADSL service",
    "details": {
      "number": "123456",
      "type": "ADSL",
      "reason": "Number does not match required format"
    }
  }
}

​
Examples

curl "https://api.oneclickdz.com/v3/internet/check-number?type=ADSL&number=036362608" \
  -H "X-Access-Token: YOUR_API_KEY"

​
Phone Number Formats

Format: 0[0-9]{8} Valid Examples: - ✅ 036362608 - ✅ 031417237 - ✅ 021123456 Invalid Examples: - ❌ 36362608 (missing leading 0) - ❌ 0363626081 (too long) - ❌ 213636362608 (wrong format)

​
Integration Example

// Complete validation flow
async function prepareInternetTopup(type, number, value) {
  // Step 1: Validate number
  try {
    await validateNumber(type, number);
  } catch (error) {
    return {
      success: false,
      error: "Invalid phone number",
      details: error.message,
    };
  }

  // Step 2: Check product availability
  const products = await getProducts(type);
  const product = products.find((p) => p.value === value && p.available);

  if (!product) {
    return {
      success: false,
      error: "Product not available",
    };
  }

  // Step 3: Send top-up
  return await sendInternetTopup({ type, number, value });
}

​
Why Validate?

Reduce Errors

Catch invalid numbers before submission

Better UX

Show immediate feedback to users

Fewer Refunds

Minimize failed transactions and refunds

Verify Format

Ensure number matches service type

​
Best Practices

Validate format client-side first, then confirm with API:
function validateADSLFormat(number) {
  return /^0[0-9]{8}$/.test(number);
}

function validate4GFormat(number) {
  return /^213[0-9]{9}$/.test(number);
}
Display clear messages when validation fails: - “Please enter a valid ADSL number (e.g., 036362608)” - “4G numbers should start with 213 (e.g., 213665983439)” - “Number format: 9 digits starting with 0”
Cache successful validations for a short period:
const validationCache = new Map();

async function validateWithCache(type, number) {
  const key = `${type}:${number}`;
  
  if (validationCache.has(key)) {
    return validationCache.get(key);
  }
  
  const result = await validateNumber(type, number);
  validationCache.set(key, result);
  
  // Clear after 5 minutes
  setTimeout(() => validationCache.delete(key), 5 * 60 * 1000);
  
  return result;
}

List Products

Get available cards

Send Top-Up

Purchase internet card