Phone Number Validation Tool and Lookup API - Free

Validate phone numbers with carrier lookup

Validate phone numbers, determine carrier name, line type, prepaid status, and identify disconnected phone numbers.

What Sent.dm Phone Validation API Does

The Sent.dm Phone Validation API is a comprehensive tool designed to ensure the accuracy and reliability of phone numbers within your systems. Leveraging advanced AI and extensive telecommunications data, it provides real-time validation, detailed carrier insights, and actionable analytics to enhance your communication strategies.

Key Features

• E.164 phone number format validation and normalization
• Phone number type classification (mobile, landline, VoIP, etc.)
• Country and region code detection
• Carrier lookup for enhanced verification
• Country inference for partial or incomplete numbers
• Validity Checks: Determines whether a number is valid, assigned to a carrier, and currently in service.
• Carrier Identification: Identifies all U.S.-based carriers, including Mobile Virtual Network Operators (MVNOs).
• Line Type Classification: Provides line types such as mobile, fixed line, VoIP, toll-free, and more.
• Prepaid Status Detection: Indicates whether a mobile number is part of a prepaid plan.
• Country Identification: Identifies the country code and country name associated with the number.
• Portability Information: Provides details about number portability, including current carrier and regional information.

Common Use Cases

• Cleaning and normalizing phone numbers in CRM databases
• Detecting fraudulent activity in financial transactions
• Compliance with telecommunications regulations, including 10DLC
• Streamlining user onboarding and registration flows
• Improving SMS and voice communication deliverability
• Lead Contactability and Prioritization: Prioritize leads with the highest chance of contactability by ensuring numbers are reachable, not disconnected or temporary, and belong to the intended subscriber.
• Lead Validation and Normalization: Ensure phone numbers are connected, assigned to a subscriber, and linked to a valid address, maintaining clean and reliable CRM data.
• Lead Verification and Append: Remove spam and junk leads while appending additional data to enhance lead conversion rates using phone metadata and subscriber details.
• Message Delivery: Confirm the legitimacy of numbers before sending messages, distinguishing between mobile, temporary VoIP, and landline numbers to reduce delivery errors.
• Fake Accounts and Promo Abuse: Prevent fake account creation and promotional abuse by identifying suspicious temporary numbers through line type and carrier intelligence.

Phone Validator API Use Cases

Handle Unstructured Data and Multiple Numbers Effortlessly: The Sent.dm Phone Validation API is designed to handle unstructured data seamlessly. Whether you have a block of text containing multiple phone numbers or a single number embedded within words, our tool can extract and validate each number accurately.

Contact us at (914) 995-2000 or visit our office in New York. Alternatively, reach out via our UK office at 020 7654 6218 for international inquiries.

Example API Responses

Extracted Phone Numbers:
Original: (914) 995-2000
Valid: Yes
Formatted: +19149952000
Type: UNKNOWN
Region: US
Inferred Country: +1 (US)
Phone Lookup Data

{
    "data": {
        "country_code": "US",
        "national_format": "(914) 995-2000",
        "phone_number": "+19149952000",
        "fraud": null,
        "carrier": null,
        "caller_name": null,
        "nnid_override": null,
        "portability": {
            "lrn": "914457XXXX",
            "ported_status": "",
            "ported_date": "",
            "ocn": "7126",
            "line_type": "fixed line",
            "spid_carrier_name": "CABLEVISION LIGHTPATH, INC.",
            "city": "WSCHSTZN01",
            "state": "New York"
        },
        "valid_number": true,
        "record_type": "number_lookup"
    }
}

Extracted Phone Numbers:
Original: 020 7654 6218
Valid: Yes
Formatted: +442076546218
Type: UNKNOWN
Region: England
Inferred Country: +44 (GB)
Phone Lookup Data

{
    "data": {
        "country_code": "GB",
        "national_format": "020 7654 6218",
        "phone_number": "+442076546218",
        "fraud": null,
        "carrier": null,
        "caller_name": null,
        "nnid_override": null,
        "portability": null,
        "valid_number": true,
        "record_type": "number_lookup"
    }
}

Features

• Validity Checks: Shows whether a number is valid, assigned to a carrier, and is in-service.
• Carrier Identification: Identifies all U.S.-based carriers, including MVNOs.
• Line Type Classification: Provides line types such as mobile, fixed line, VoIP, toll-free, and more.
• Prepaid Status Detection: Indicates whether a mobile number is part of a prepaid plan.
• Country Identification: Identifies the country code and country name associated with the number.
• Portability Information: Provides details about number portability, including current carrier and regional information.

Built for Developers

• Built for Speed: Fast validation processes to handle high-demand environments.
• Built for Scale: Capable of managing large volumes of phone number validations effortlessly.
• Built for Reliability: Ensures consistent uptime and dependable performance.
• World-Class API Documentation & SDKs: Comprehensive documentation and software development kits to simplify integration.

Customer-Obsessed Technical Support

Dedicated support team to assist with any technical challenges.

Example API Response

{
  "Extracted Phone Numbers": {
    "Original": "(914) 995-2000",
    "Valid": "Yes",
    "Formatted": "+19149952000",
    "Type": "UNKNOWN",
    "Region": "US",
    "Inferred Country": "+1 (US)",
    "Phone Lookup Data": {
      "data": {
        "country_code": "US",
        "national_format": "(914) 995-2000",
        "phone_number": "+19149952000",
        "fraud": null,
        "carrier": null,
        "caller_name": null,
        "nnid_override": null,
        "portability": {
          "lrn": "914457XXXX",
          "ported_status": "",
          "ported_date": "",
          "ocn": "7126",
          "line_type": "fixed line",
          "spid_carrier_name": "CABLEVISION LIGHTPATH, INC.",
          "city": "WSCHSTZN01",
          "state": "New York"
        },
        "valid_number": true,
        "record_type": "number_lookup"
      }
    }
  }
}

{
  "Extracted Phone Numbers": {
    "Original": "020 7654 6218",
    "Valid": "Yes",
    "Formatted": "+442076546218",
    "Type": "UNKNOWN",
    "Region": "England",
    "Inferred Country": "+44 (GB)",
    "Phone Lookup Data": {
      "data": {
        "country_code": "GB",
        "national_format": "020 7654 6218",
        "phone_number": "+442076546218",
        "fraud": null,
        "carrier": null,
        "caller_name": null,
        "nnid_override": null,
        "portability": null,
        "valid_number": true,
        "record_type": "number_lookup"
      }
    }
  }
}

Handle Unstructured Data and Multiple Numbers Effortlessly

The Sent.dm Phone Validation API is designed to handle unstructured data seamlessly. Whether you have a block of text containing multiple phone numbers or a single number embedded within words, our tool can extract and validate each number accurately.

Example Use Case:

Imagine you have a customer feedback form where users enter comments along with their contact information. The Sent.dm Phone Validation API can process the entire text, identify all phone numbers, and validate each one without requiring manual separation.

Contact us at (914) 995-2000 or visit our office in New York. Alternatively, reach out via our UK office at 020 7654 6218 for international inquiries.

How It Works:

• Extract: The API scans the input text to identify all phone numbers.
• Validate: Each extracted number is validated for correctness and service status.
• Classify: Determine the type, carrier, and other relevant details for each number.
• Return: Provide a structured response for each validated phone number.

Built for Reliability

Ensures consistent uptime and dependable performance.

World-Class API Documentation & SDKs

Comprehensive documentation and software development kits to simplify integration.

Customer-Obsessed Technical Support

Dedicated support team to assist with any technical challenges.