Phone Lookup Sync

Phone number verification

Validate the existence, carrier and line type of a phone number in real time.

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What is Phone Lookup?

Verify that a phone number is real and active. Get carrier information, line type and number status.

How does it work?

One API call. Instant response.

Step 1

Send the request

GET with customer_id. Singula checks the phone number associated with the customer.

Step 2

Instant response

Synchronous request directly to the Identity API. Result in milliseconds.

Step 3

Verified result

Receive carrier, line type (mobile/landline), country and validity status.

phone-lookup.sh
curl https://api.singula.mx/app/phone-lookup/customer/cus_abc123 \
  -H "Authorization: Bearer sk_live_..."

→ {
  "phone": "+525512345678",
  "valid": true,
  "carrier": "Telcel",
  "line_type": "mobile",
  "country": "MX"
}

Real-time response

Synchronous request with instant response.

Carrier information

Identifies Telcel, AT&T, Movistar and other Mexican carriers.

Line type

Distinguish between mobile, landline, VoIP or virtual lines.

KYC integration

Combine with identity verification to validate contact data.

Verify phone numbers from your product

No contracts. Free sandbox. Production ready.

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