curl "https://app.tatango.com/api/v2/lists/<ID>/subscribers/<SUBSCRIBER_ID>" -d '{"subscriber":{"phone_number":"2141234567","first_name":"John","last_name":"Doe"}}' -X PUT \
  -H "Accept: application/json" \
  -H "Content-Type: application/json" \
  -u emailaddress@mydomain.com:my_api_key \
  -H "Host: example.org" \
  -H "Cookie: "

require 'net/http'
require 'uri'

uri = URI.parse('https://app.tatango.com/api/v2/lists/<ID>/subscribers/<SUBSCRIBER_ID>')
http = Net::HTTP.new(uri.host, uri.port)
request = Net::HTTP::Put.new(uri.request_url)
request.basic_auth("emailaddress@mydomain.com", "my_api_key")
request.body = {"subscriber":{"phone_number":"2141234567","first_name":"John","last_name":"Doe"}}.to_json
response = http.request(request)

var request = new XMLHttpRequest();
request.open('PUT', 'https://app.tatango.com/api/v2/lists/<ID>/subscribers/<SUBSCRIBER_ID>', false);
request.setRequestHeader('Content-Type', 'application/json');
request.setRequestHeader('Authorization', 'Basic ' + btoa('emailaddress@mydomain.com:my_api_key'));
var data = JSON.stringify({ subscriber: { phone_number: '2141234567', first_name: 'John', last_name: 'Doe' } });
request.send(data);

import requests

url = "https://app.tatango.com/api/v2/lists/{ID}/subscribers/{SUBSCRIBER_ID}"

payload = { "subscriber": {
        "phone_number": "2141234567",
        "first_name": "John",
        "last_name": "Doe",
        "email": "john.doe@example.com",
        "birthdate": "19900101",
        "zip_code": "75201",
        "gender": "Male",
        "tags": "vip customer, card holder, daily alerts",
        "custom_field_key": "custom_value"
    } }
headers = {
    "Authorization": "Basic <encoded-value>",
    "Content-Type": "application/json"
}

response = requests.put(url, json=payload, headers=headers)

print(response.text)

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://app.tatango.com/api/v2/lists/{ID}/subscribers/{SUBSCRIBER_ID}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PUT",
  CURLOPT_POSTFIELDS => json_encode([
    'subscriber' => [
        'phone_number' => '2141234567',
        'first_name' => 'John',
        'last_name' => 'Doe',
        'email' => 'john.doe@example.com',
        'birthdate' => '19900101',
        'zip_code' => '75201',
        'gender' => 'Male',
        'tags' => 'vip customer, card holder, daily alerts',
        'custom_field_key' => 'custom_value'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Basic <encoded-value>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://app.tatango.com/api/v2/lists/{ID}/subscribers/{SUBSCRIBER_ID}"

	payload := strings.NewReader("{\n  \"subscriber\": {\n    \"phone_number\": \"2141234567\",\n    \"first_name\": \"John\",\n    \"last_name\": \"Doe\",\n    \"email\": \"john.doe@example.com\",\n    \"birthdate\": \"19900101\",\n    \"zip_code\": \"75201\",\n    \"gender\": \"Male\",\n    \"tags\": \"vip customer, card holder, daily alerts\",\n    \"custom_field_key\": \"custom_value\"\n  }\n}")

	req, _ := http.NewRequest("PUT", url, payload)

	req.Header.Add("Authorization", "Basic <encoded-value>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.put("https://app.tatango.com/api/v2/lists/{ID}/subscribers/{SUBSCRIBER_ID}")
  .header("Authorization", "Basic <encoded-value>")
  .header("Content-Type", "application/json")
  .body("{\n  \"subscriber\": {\n    \"phone_number\": \"2141234567\",\n    \"first_name\": \"John\",\n    \"last_name\": \"Doe\",\n    \"email\": \"john.doe@example.com\",\n    \"birthdate\": \"19900101\",\n    \"zip_code\": \"75201\",\n    \"gender\": \"Male\",\n    \"tags\": \"vip customer, card holder, daily alerts\",\n    \"custom_field_key\": \"custom_value\"\n  }\n}")
  .asString();

{
  "status": "Subscriber updated",
  "subscriber": {
    "phone_number": "2141234567",
    "cleaned_at": null,
    "subscribed_at": "2025-06-18T15:36:07Z",
    "opted_out_at": null,
    "opt_in_method": "api",
    "keyword_name": null,
    "carrier": 383,
    "carrier_name": "Verizon Wireless",
    "global_carrier_id": "12345",
    "global_carrier_name": "Verizon"
  }
}