Get a Lead by Phone Number
Returns a lead’s details (First name, Last name, Email Address, Location, etc.) based on the phone number you pass in the API URL.
Note:
- The API retrieves the lead based on the “Phone” and “Mobile” lead fields only.
- You can no longer pass the additional parameter
searchByOtherField=truein the API URL to search using a lead using a different field. This functionality has been deprecated. - If Object Types are enabled on your account, in the response, the
LeadTypeis OT_0 by default. This means leads are the default Object Type. If you create custom object types, theLeadTypeis OT_1, OT_2, and so on. - If Object Types are not enabled in your account, you do not see any object type parameters in the response.
If more than one lead matches the phone number you pass, the API will return the lead with the most recent activity. You can pass the phone number with or without the country-code but don’t include spaces, hyphens or any other character.
Related APIs
- To retrieve a lead’s details using their Id, use the Get Lead by Id API.
- To retrieve a lead’s details using their email Id, use the Get Lead by Email API.
API URL
URL Parameters
| Parameter | Description |
|---|---|
| Phone | The lead's phone number. |
Response
[
{
"LeadType":"OT_0",
"FirstLandingPageSubmissionDate":null,
"Web_RefKeyword":null,
"Web_Referrer":null,
"ProspectActivityDate_Min":"2025-11-14 03:10:00.000",
"ProspectActivityDate_Max":"2025-11-25 07:47:26.000",
"ProspectActivityName_Max":"Sales Activity",
"LeadLastModifiedOn":"2025-11-25 07:47:41.000",
"FirstLandingPageSubmissionId":null,
"RelatedLandingPageId":null,
"LastVisitDate":"2025-11-25 07:47:26.000",
"NotableEventdate":"2025-11-25 07:47:41.000",
"NotableEvent":"Modified",
"SourceReferrer":null,
"ProspectID":"bd595fc2-3678-4004-9ac6-65bfd1caadb5",
"Longitude":null,
"Latitude":null,
"SourceIPAddress":null,
"SourceReferrerURL":null,
"ConversionReferrerURL":null,
"StatusCode":"0",
"ProspectActivityId_Min":"fb8bad57-2236-4f7c-be4c-04b4a3470592",
"ProspectActivityId_Max":"c6d7226e-d096-4020-804a-82e524429f48",
"StatusReason":"0",
"RelatedProspectId":null,
"ProspectAutoId":"1024",
"DeletionStatusCode":"0",
"IsLead":"1",
"FirstName":"Nivas",
"LastName":"Ravi",
"EmailAddress":"nivas@leadsquard.com",
"Phone":"+91-9988776655",
"Company":null,
"Website":null,
"DoNotSMS":"0",
"DoNotTrack":"0",
"DoNotEmail":"0",
"DoNotCall":"0",
"Source":null,
"SourceCampaign":null,
"Mobile":null,
"SourceMedium":null,
"SourceContent":null,
"JobTitle":null,
"Notes":null,
"Revenue":"0",
"EngagementScore":"0",
"Score":"6",
"QualityScore01":null,
"ProspectStage":"Customer",
"OwnerId":"7511e6c2-9df5-11f0-91df-068012126923",
"CreatedByName":"Nivas Ravi",
"CreatedBy":"7511e6c2-9df5-11f0-91df-068012126923",
"LeadConversionDate":"2025-11-04 09:07:42.000",
"CreatedOn":"2025-11-04 09:07:42.000",
"ModifiedByName":"Nivas Ravi",
"ModifiedBy":"7511e6c2-9df5-11f0-91df-068012126923",
"ModifiedOn":"2025-11-25 07:47:41.000",
"TimeZone":null,
"TotalVisits":null,
"PageViewsPerVisit":null,
"AvgTimePerVisit":null,
"mx_Street1":null,
"mx_Street2":null,
"mx_City":null,
"mx_State":null,
"mx_Country":null,
"mx_Zip":null,
"OwnerIdName":"Nivas Ravi",
"OwnerIdEmailAddress":"nivas.78101@lsqdev.in",
"Origin":"Lead Add Form",
"MailingPreferences":null,
"Groups":null,
"PhotoUrl":null,
"TwitterId":null,
"FacebookId":null,
"LinkedInId":null,
"SkypeId":null,
"GooglePlusId":null,
"GTalkId":null,
"CurrentOptInStatus":"Unknown",
"OptInDate":null,
"OptInDetails":null,
"LastOptInEmailSentDate":null,
"LeadAge":"99",
"mx_Residential_Address":"{}",
"LeadTypeAssociation_OT_1_OT_2":null,
"LeadTypeAssociation_OT_2_OT_1":null,
"LeadTypeAssociation_OT_3_OT_4":null,
"LeadTypeAssociation_OT_4_OT_3":null,
"LeadTypeAssociation_OT_4_OT_2":null,
"mx_Portal_IsPortalUser":null,
"LeadTypeAssociation_OT_3_OT_1":null,
"LeadTypeAssociation_OT_4_OT_1":null,
"LeadTypeAssociation_OT_1_OT_3":null,
"mx_Loan_Number":null,
"LeadTypeAssociation_OT_4_OT_4":null,
"LeadTypeAssociation_OT_5_OT_4":null,
"IsStarredLead":"false",
"CanUpdate":"true"
}
]
HTTP Response Codes
| Code | Description |
|---|---|
| 200 OK | This is the status code for successful API call. |
| 401 Unauthorized | The API call was made with invalid access credentials. Check your AccessKey and SecretKey. |
| 400 Bad Request | The message body on the request is not as per API specification. Make sure that content type is set to “application/json” and the JSON body has correct attribute names and structure. |
| 404 Not Found | The API could not be found. Please check the API signature. |
| 429 Too Many Requests | API calls exceeded the limit of 25 in 5 second(s) |
| 500 Internal Server Error | The API called failed. There could be many reasons for it. Check the exception message to get more details. |

