Benefits of a Phone Number Lookup API

July 1, 2022 // Product

The Voxology Phone Number Information Lookup API goes beyond the basic functionality of caller id name (CNAM), delivering valuable insight on local, toll-free and international phone numbers, such as the underlying: carrier name, line type (landline, mobile, voip), location, rate center, and even who the number belongs to. Our easy-to-use API makes finding and leveraging data on any domestic or international phone number a force-multiplying integration.

Because you are able to verify whether or not a phone number is authentic and in operation, the phone number information lookup API can help you deliver:

  • Better conversion rates
  • Better message deliverability
  • Better security

How It Works

Voxology’s Phone Number Information Lookup API brings disparate data together in a simple service built to help developers validate phone numbers, lookup carrier information, increase notification deliverability, and reduce fraud.

What You Can Do

  • Validate Phone Numbers // check to see if a phone number is valid and in service and, if so, does it belong to an individual or to a business
  • Identify Potential Fraud // help reduce risk of fraud by verifying the data of your online signups
  • Increase Notification Deliverability // help determine the right method to deliver your message
  • Enhance Phone Experiences // craft personalized experiences for customers based on information about their phone number
  • Lead Validation // ensure better conversion rates by by validating that your lead’s name matches the number

Confidence Score

On top of all of the data you are able to access through our phone number information lookup API, we also provide an in-service confidence score. Just because a phone number is valid does not mean that it is actually in service. Our in-service confidence score can be used in conjunction with other data to help grow your confidence that a phone number is not only valid, but active.

Trestle Integration

In addition to delivering next-generation telecommunication functionality, Voxology is committed to empowering you with the next-generation tools needed to operate at maximum levels of efficiency and security. That’s why we offer a simple-to-use integration with Trestle (formally offered by Ekata MasterCard). This added level of information helps to mitigate risk and fraud, which drain companies of valuable human resources and also involve copious amounts of paperwork and legal expenses.

Our Trestle Reverse Phone Lookup integration is easily incorporated in your phone number lookups using the trestle_reverse_phone query parameter.

Sample response below:

    "phone_number": "+19495551212",
    "phone_number_formatted": "(949) 555-1212",
    "country_code": "US",
    "integrations": {
        "whitepages_reverse_phone": {
            "current_addresses": [
                    "location_type": "Address",
                    "street_line_1": "789 Fountain Hill Rd",
                    "street_line_2": null,
                    "city": "Newport Beach",
                    "postal_code": "99999",
                    "zip4": "8888",
                    "state_code": "CA",
                    "country_code": "US",
                    "lat_long": {
                        "latitude": 80.47197,
                        "longitude": -871.8145,
                        "accuracy": "RoofTop"
                    "is_active": true,
                    "delivery_point": "SingleUnit",
                    "link_to_person_start_date": "2020-09-01"
            "belongs_to": {
                "name": "John Doe",
                "firstname": "John",
                "middlename": "Frank",
                "lastname": "Doe",
                "alternate_names": [],
                "age_range": null,
                "gender": null,
                "type": "Person",
            "is_prepaid": false,
            "is_commercial": false,
            "carrier": "Verizon Wireless",
            "associated_people": [
                    "name": "Jane A Doe",
                    "firstname": "Jane",
                    "middlename": "A",
                    "lastname": "Doe",
                    "relation": "Household"
            "is_valid": true,
            "line_type": "Mobile",
            "alternate_phones": [
                    "phone_number": "+15555551212",
                    "line_type": "Landline"
            "country_calling_code": "1"


Phone number information lookup is a powerful tool that equips your business with the functionality to increase message and call deliverability and, simultaneously, decrease your exposure to fraud. Not only do these services help mitigate fraud, they also help reduce waste — so much time can be spent disputing chargebacks, deactivating bad accounts, and forcing hungry sales people to chase bad leads or place calls to invalid phone numbers.

In addition to the lookups mentioned in this post, we also have an array of phone number-related data that we did not cover here. We would love to hear about your specific needs so we can get you the data to help you run your business.

Ready to learn more?

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