openapi: 3.2.0
info:
  title: Number Lookup Api v2 Number Lookup V2 API
  description: With quick and easy access to Number Lookup, you can enhance your communications and keep your database as clean as a whistle. Number Lookup checks against first-party numbering sources and provides real-time feedback. Improve communication by validating and verifying numbers, boosting delivery conversion rates, and saving money on marketing campaigns. Test numbers to ensure your recipients are ready and waiting to receive your messages!
  contact:
    name: Sinch
    url: https://www.sinch.com/contact-us/
    email: support@sinch.com
  license:
    url: https://www.sinch.com/toc
    name: MIT
  version: 0.1.0
servers:
- url: https://lookup.api.sinch.com
security:
- Basic: []
- OAuth2: []
tags:
- name: NumberLookupV2
paths:
  /v2/projects/{projectId}/lookups:
    post:
      tags:
      - NumberLookupV2
      summary: Performs a number lookup
      operationId: NumberLookupV2_Lookup
      parameters:
      - name: projectId
        in: path
        required: true
        schema:
          type: string
        x-position: 1
      requestBody:
        x-name: numberLookupRequest
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/NumberLookupRequest'
            examples:
              minRequest:
                summary: Minimum request
                value:
                  number: '+12312312312'
              additionalOptions:
                summary: Request with additional features
                value:
                  number: '+12312312312'
                  features:
                  - LineType
                  - RND
                  - SimSwap
                  - VoIPDetection
                  rndFeatureOptions:
                    contactDate: '2025-01-01'
        x-position: 2
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/NumberLookupResponse'
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProblemDetails'
        '401':
          description: Invalid Authorization
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProblemDetails'
        '402':
          description: Account Locked
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProblemDetails'
        '403':
          description: API disabled
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProblemDetails'
        '404':
          description: Not Found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProblemDetails'
        '429':
          description: Too Many Requests
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProblemDetails'
        '500':
          description: Internal Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProblemDetails'
      x-codeSamples:
      - lang: Java
        source: "/**\n * Sinch Java Snippet\n *\n * <p>This snippet is available at https://github.com/sinch/sinch-sdk-java\n *\n * <p>See https://github.com/sinch/sinch-sdk-java/blob/main/examples/snippets/README.md for details\n */\npackage numberlookup;\n\nimport com.sinch.sdk.SinchClient;\nimport com.sinch.sdk.domains.numberlookup.api.v2.NumberLookupV2Service;\nimport com.sinch.sdk.domains.numberlookup.models.v2.request.LookupFeatureType;\nimport com.sinch.sdk.domains.numberlookup.models.v2.request.NumberLookupRequest;\nimport com.sinch.sdk.domains.numberlookup.models.v2.response.NumberLookupResponse;\nimport com.sinch.sdk.models.Configuration;\nimport java.util.Collections;\nimport java.util.logging.Logger;\nimport utils.Settings;\n\npublic class Lookup {\n\n  private static final Logger LOGGER = Logger.getLogger(Lookup.class.getName());\n\n  public static void main(String[] args) {\n\n    String projectId = Settings.getProjectId().orElse(\"MY_PROJECT_ID\");\n    String keyId = Settings.getKeyId().orElse(\"MY_KEY_ID\");\n    String keySecret = Settings.getKeySecret().orElse(\"MY_KEY_SECRET\");\n\n    // The phone number you want to lookup in E.164 format\n    String phoneNumber = \"PHONE_NUMBER\";\n\n    Configuration configuration =\n        Configuration.builder()\n            .setProjectId(projectId)\n            .setKeyId(keyId)\n            .setKeySecret(keySecret)\n            .build();\n\n    SinchClient client = new SinchClient(configuration);\n\n    NumberLookupV2Service numberLookupService = client.lookup().v2();\n\n    NumberLookupRequest request =\n        NumberLookupRequest.builder()\n            .setNumber(phoneNumber)\n            .setFeatures(Collections.singletonList(LookupFeatureType.LINE_TYPE))\n            .build();\n\n    LOGGER.info(\"Lookup for: \" + phoneNumber);\n\n    NumberLookupResponse response = numberLookupService.lookup(request);\n\n    LOGGER.info(\"Response: \" + response);\n  }\n}\n"
      - lang: Node.js
        source: "/**\n * Sinch Node.js Snippet\n * See: https://github.com/sinch/sinch-sdk-node/examples/snippets\n */\nimport { SinchClient } from '@sinch/sdk-core';\nimport * as dotenv from 'dotenv';\ndotenv.config();\n\nasync function main() {\n  const projectId = process.env.SINCH_PROJECT_ID ?? 'MY_PROJECT_ID';\n  const keyId = process.env.SINCH_KEY_ID ?? 'MY_KEY_ID';\n  const keySecret = process.env.SINCH_KEY_SECRET ?? 'MY_KEY_SECRET';\n\n  // The phone number you want to lookup\n  const phoneNumber = 'PHONE_NUMBER';\n\n  const sinch = new SinchClient({ projectId, keyId, keySecret });\n\n  try{\n    const response = await sinch.numberLookup.lookup({\n      numberLookupRequestBody: {\n        number: phoneNumber,\n        features: [ 'LineType' ],\n      },\n    });\n    console.log('✅ Successfully performed the number lookup.');\n    console.log(JSON.stringify(response, null, 2));\n  } catch (err) {\n    console.error(`❌ Failed to perform a lookup for the phone number ${phoneNumber}:`);\n    console.error(err);\n  }\n}\n\nmain();\n"
components:
  schemas:
    ErrorResponse:
      type: object
      additionalProperties: false
      properties:
        status:
          type: integer
          description: The error status code.
          format: int32
        title:
          type: string
          description: A short, human-readable summary of the error type.
        detail:
          type: string
          description: A human-readable explanation specific to this occurrence of the error.
        type:
          type:
          - string
          - 'null'
          description: A URI reference that identifies the error type.
    ProblemDetails:
      type: object
      additionalProperties: false
      properties:
        type:
          type:
          - string
          - 'null'
          description: A URI reference that identifies the problem type.
        title:
          type: string
          description: A short, human-readable summary of the problem type.
        status:
          type: integer
          description: The HTTP status code.
          format: int32
        traceId:
          type: string
          description: The identifier for a trace.
          example: 00-84c1fd4063c38d9f3900d06e56542d48-85d1d4-00
    ApiSwapPeriod:
      type: string
      description: ''
      x-enumNames:
      - Undefined
      - SP4H
      - SP12H
      - SP24H
      - SP48H
      - SP5D
      - SP7D
      - SP14D
      - SP30D
      - SPMAX
      enum:
      - Undefined
      - SP4H
      - SP12H
      - SP24H
      - SP48H
      - SP5D
      - SP7D
      - SP14D
      - SP30D
      - SPMAX
      x-enumDescriptions:
        Undefined: Undefined
        SP4H: 4 Hours
        SP12H: 12 Hours
        SP24H: 24 Hours
        SP48H: 48 Hours
        SP5D: 5 Days
        SP7D: 7 Days
        SP14D: 14 Days
        SP30D: 30 Days
        SPMAX: Maximum
    VoIPDetectionResponse:
      type: object
      additionalProperties: false
      properties:
        probability:
          description: Probability of number being VoIP based on the AI analysis.
          type:
          - string
          - 'null'
          example: High
          allOf:
          - $ref: '#/components/schemas/ApiVoIPProbability'
        error:
          type:
          - object
          - 'null'
          allOf:
          - $ref: '#/components/schemas/ErrorResponse'
    SimSwapResponse:
      type: object
      additionalProperties: false
      properties:
        swapped:
          type:
          - boolean
          - 'null'
          description: Indicates whether SIM was changed.
          example: true
        swapPeriod:
          description: Threshold for sim swap check.
          type:
          - string
          - 'null'
          example: SP24H
          allOf:
          - $ref: '#/components/schemas/ApiSwapPeriod'
        error:
          type:
          - object
          - 'null'
          allOf:
          - $ref: '#/components/schemas/ErrorResponse'
    LineResponse:
      type: object
      additionalProperties: false
      properties:
        carrier:
          type:
          - string
          - 'null'
          description: Name of the carrier.
          example: T-Mobile USA
        type:
          description: Number type e.g. wireless, mobile, fixed.
          type:
          - string
          - 'null'
          example: Mobile
          allOf:
          - $ref: '#/components/schemas/ApiLineType'
        mobileCountryCode:
          type:
          - string
          - 'null'
          description: A numeric code (MCC) that uniquely identifies a country within the international telecommunications network.
          example: '310'
        mobileNetworkCode:
          type:
          - string
          - 'null'
          description: A distinct identifier assigned to a mobile network operator within a specific country, used in combination with MCC.
          example: '260'
        ported:
          type:
          - boolean
          - 'null'
          description: Indicates if a phone number has been transferred from its original network to a different provider.
          example: true
        portingDate:
          type:
          - string
          - 'null'
          format: date-time
          description: Specifies the date, in ISO 8601 format, when a phone number was transferred from its original network to a new provider.
          example: '2000-01-01 00:00:00+00:00'
        error:
          type:
          - object
          - 'null'
          allOf:
          - $ref: '#/components/schemas/ErrorResponse'
    RndResponse:
      type: object
      additionalProperties: false
      properties:
        disconnected:
          type:
          - boolean
          - 'null'
          description: Provides information whether the number was disconnected after provided last contact date.
        error:
          type:
          - object
          - 'null'
          allOf:
          - $ref: '#/components/schemas/ErrorResponse'
    NumberLookupRequest:
      type: object
      additionalProperties: false
      required:
      - number
      properties:
        number:
          type: string
          description: MSISDN in E.164 format to query.
          minLength: 1
          example: '+12312312312'
        features:
          type: array
          description: Contains requested features. Fallback to LineType if not provided.
          items:
            $ref: '#/components/schemas/ApiFeature'
        rndFeatureOptions:
          description: Required when RND feature is requested.
          type:
          - object
          - 'null'
          allOf:
          - $ref: '#/components/schemas/RndFeatureOptions'
    ApiFeature:
      type: string
      description: ''
      x-enumNames:
      - LineType
      - SimSwap
      - VoIPDetection
      - RND
      enum:
      - LineType
      - SimSwap
      - VoIPDetection
      - RND
      x-enumDescriptions:
        LineType: Use to return line type information for the phone number.
        SimSwap: Use to determine whether the phone number is SIM swapped.
        VoIPDetection: Use to determine if the carrier is associated with a VoIP provider (alpha).
        RND: Use to determine whether the phone number has been disconnected (alpha).
    ApiLineType:
      type: string
      description: Represents the type of a phone line.
      x-enumNames:
      - Landline
      - Mobile
      - VoIP
      - Special
      - Freephone
      - Other
      enum:
      - Landline
      - Mobile
      - VoIP
      - Special
      - Freephone
      - Other
      x-enumDescriptions:
        Landline: A landline phone number.
        Mobile: A mobile network phone number.
        VoIP: A Voice over IP phone number.
        Special: A specialty type of number, such as a satellite phone or fax line.
        Freephone: A freephone type phone number.
        Other: Another type.
    ApiVoIPProbability:
      type: string
      description: ''
      x-enumNames:
      - Unknown
      - Low
      - Likely
      - High
      enum:
      - Unknown
      - Low
      - Likely
      - High
      x-enumDescriptions:
        Unknown: Undefined
        Low: Low
        Likely: Likely
        High: High
    NumberLookupResponse:
      type: object
      additionalProperties: false
      properties:
        line:
          description: An object containing information about the line type of the number.
          type:
          - object
          - 'null'
          allOf:
          - $ref: '#/components/schemas/LineResponse'
        simSwap:
          description: An object containing information about the SimSwap verification performed on the number.
          type:
          - object
          - 'null'
          allOf:
          - $ref: '#/components/schemas/SimSwapResponse'
        voIPDetection:
          description: An object containing information about the VoIP detection performed on the number.
          type:
          - object
          - 'null'
          allOf:
          - $ref: '#/components/schemas/VoIPDetectionResponse'
        rnd:
          description: An object containing information whether number is disconnected.
          type:
          - object
          - 'null'
          allOf:
          - $ref: '#/components/schemas/RndResponse'
        countryCode:
          type: string
          description: ISO 3166-1 alpha-2 two-letter country identifier
        traceId:
          type: string
          description: The identifier for a trace.
          example: 84c1fd4063c38d9f3900d06e56542d48
        number:
          type: string
          description: Requested MSISDN in E.164 format.
          example: '+12312312312'
    RndFeatureOptions:
      type: object
      additionalProperties: false
      properties:
        contactDate:
          type: string
          description: Last contact date in YYYY-MM-DD format.
          format: date
  securitySchemes:
    Basic:
      type: http
      description: For more information about basic authentication, see [Basic Authentication](/docs/number-lookup-api/api-reference/authentication/).
      scheme: basic
    OAuth2:
      type: oauth2
      flows:
        clientCredentials:
          tokenUrl: https://auth.sinch.com/oauth2/token
          scopes: {}