diff --git a/src/Bundle/ChillMainBundle/DependencyInjection/ChillMainExtension.php b/src/Bundle/ChillMainBundle/DependencyInjection/ChillMainExtension.php
index fa561b7e7..cfeb1530e 100644
--- a/src/Bundle/ChillMainBundle/DependencyInjection/ChillMainExtension.php
+++ b/src/Bundle/ChillMainBundle/DependencyInjection/ChillMainExtension.php
@@ -162,7 +162,6 @@ class ChillMainExtension extends Extension implements
         $loader->load('services/notification.yaml');
         $loader->load('services/redis.yaml');
         $loader->load('services/command.yaml');
-        $loader->load('services/phonenumber.yaml');
         $loader->load('services/cache.yaml');
         $loader->load('services/templating.yaml');
         $loader->load('services/timeline.yaml');
diff --git a/src/Bundle/ChillMainBundle/Phonenumber/PhonenumberHelper.php b/src/Bundle/ChillMainBundle/Phonenumber/PhonenumberHelper.php
deleted file mode 100644
index 0eae018a8..000000000
--- a/src/Bundle/ChillMainBundle/Phonenumber/PhonenumberHelper.php
+++ /dev/null
@@ -1,276 +0,0 @@
-<?php
-
-/**
- * Chill is a software for social workers
- *
- * For the full copyright and license information, please view
- * the LICENSE file that was distributed with this source code.
- */
-
-declare(strict_types=1);
-
-namespace Chill\MainBundle\Phonenumber;
-
-use GuzzleHttp\Client;
-use GuzzleHttp\Exception\ClientException;
-use GuzzleHttp\Exception\ConnectException;
-use GuzzleHttp\Exception\ServerException;
-use Psr\Cache\CacheItemPoolInterface;
-use Psr\Log\LoggerInterface;
-
-use function array_key_exists;
-use function in_array;
-use function json_decode;
-use function preg_replace;
-use function strlen;
-
-/**
- * Helper to some task linked to phonenumber.
- *
- * Currently, only Twilio is supported (https://www.twilio.com/lookup). A method
- * allow to check if the helper is configured for validation. This should be used
- * before doing some validation.
- */
-class PhonenumberHelper
-{
-    public const FORMAT_URI = 'https://lookups.twilio.com/v1/PhoneNumbers/%s';
-
-    public const LOOKUP_URI = 'https://lookups.twilio.com/v1/PhoneNumbers/%s';
-
-    protected CacheItemPoolInterface $cachePool;
-
-    /**
-     * TRUE if the client is properly configured.
-     */
-    protected bool $isConfigured = false;
-
-    protected LoggerInterface $logger;
-
-    /**
-     * Twilio client.
-     */
-    protected Client $twilioClient;
-
-    public function __construct(
-        CacheItemPoolInterface $cachePool,
-        $config,
-        LoggerInterface $logger
-    ) {
-        $this->logger = $logger;
-        $this->cachePool = $cachePool;
-
-        if (
-            array_key_exists('twilio_sid', $config)
-            && !empty($config['twilio_sid'])
-            && strlen($config['twilio_sid']) > 2
-            && array_key_exists('twilio_secret', $config)
-            && !empty($config['twilio_secret'])
-            && strlen($config['twilio_secret']) > 2
-        ) {
-            $this->twilioClient = new Client([
-                'auth' => [$config['twilio_sid'], $config['twilio_secret']],
-            ]);
-            $this->isConfigured = true;
-        }
-    }
-
-    public function format($phonenumber)
-    {
-        return $this->performTwilioFormat($phonenumber);
-    }
-
-    /**
-     * Get type (mobile, landline, ...) for phone number.
-     */
-    public function getType(string $phonenumber): string
-    {
-        return $this->performTwilioLookup($phonenumber) ?? 'unknown';
-    }
-
-    /**
-     * Return true if the validation is configured and available.
-     */
-    public function isPhonenumberValidationConfigured(): bool
-    {
-        return $this->isConfigured;
-    }
-
-    /**
-     * Return true if the phonenumber is a landline or voip phone.  Return always true
-     * if the validation is not configured.
-     *
-     * @param string $phonenumber
-     */
-    public function isValidPhonenumberAny($phonenumber): bool
-    {
-        if (false === $this->isPhonenumberValidationConfigured()) {
-            return true;
-        }
-        $validation = $this->performTwilioLookup($phonenumber);
-
-        if (null === $validation) {
-            return false;
-        }
-
-        return in_array($validation, ['landline', 'voip', 'mobile'], true);
-    }
-
-    /**
-     * Return true if the phonenumber is a landline or voip phone.  Return always true
-     * if the validation is not configured.
-     *
-     * @param string $phonenumber
-     */
-    public function isValidPhonenumberLandOrVoip($phonenumber): bool
-    {
-        if (false === $this->isPhonenumberValidationConfigured()) {
-            return true;
-        }
-
-        $validation = $this->performTwilioLookup($phonenumber);
-
-        if (null === $validation) {
-            return true;
-        }
-
-        return in_array($validation, ['landline', 'voip'], true);
-    }
-
-    /**
-     * REturn true if the phoennumber is a mobile phone. Return always true
-     * if the validation is not configured.
-     *
-     * @param string $phonenumber
-     */
-    public function isValidPhonenumberMobile($phonenumber): bool
-    {
-        if (false === $this->isPhonenumberValidationConfigured()) {
-            return true;
-        }
-
-        $validation = $this->performTwilioLookup($phonenumber);
-
-        if (null === $validation) {
-            return true;
-        }
-
-        return 'mobile' === $validation;
-    }
-
-    protected function performTwilioFormat($phonenumber)
-    {
-        if (false === $this->isPhonenumberValidationConfigured()) {
-            return $phonenumber;
-        }
-
-        // filter only number
-        $filtered = preg_replace('/[^0-9]/', '', $phonenumber);
-
-        $item = $this->cachePool->getItem('pnum_format_nat_' . $filtered);
-
-        if ($item->isHit()) {
-            return $item->get();
-        }
-
-        try {
-            $response = $this->twilioClient->get(sprintf(self::FORMAT_URI, '+' . $filtered), [
-                'http_errors' => true,
-            ]);
-        } catch (ClientException $e) {
-            $response = $e->getResponse();
-            $this->logger->error('[phonenumber helper] Could not format number '
-                . 'due to client error', [
-                    'message' => $response->getBody()->getContents(),
-                    'status_code' => $response->getStatusCode(),
-                    'phonenumber' => $phonenumber,
-                ]);
-
-            return $phonenumber;
-        } catch (ServerException $e) {
-            $response = $e->getResponse();
-            $this->logger->error('[phonenumber helper] Could not format number '
-                . 'due to server error', [
-                    'message' => $response->getBody()->getContents(),
-                    'status_code' => $response->getStatusCode(),
-                    'phonenumber' => $phonenumber,
-                ]);
-
-            return null;
-        } catch (ConnectException $e) {
-            $this->logger->error('[phonenumber helper] Could not format number '
-                . 'due to connect error', [
-                    'message' => $e->getMessage(),
-                    'phonenumber' => $phonenumber,
-                ]);
-
-            return null;
-        }
-
-        $format = json_decode($response->getBody()->getContents())->national_format;
-
-        $item
-            ->set($format)
-            // expires after 3d
-            ->expiresAfter(3600 * 24 * 3);
-
-        $this->cachePool->save($item);
-
-        return $format;
-    }
-
-    protected function performTwilioLookup($phonenumber)
-    {
-        if (false === $this->isPhonenumberValidationConfigured()) {
-            return null;
-        }
-
-        // filter only number
-        $filtered = preg_replace('/[^0-9]/', '', $phonenumber);
-
-        $item = $this->cachePool->getItem('pnum_' . $filtered);
-
-        if ($item->isHit()) {
-            //return $item->get();
-        }
-
-        try {
-            $response = $this->twilioClient->get(sprintf(self::LOOKUP_URI, '+' . $filtered), [
-                'http_errors' => true,
-                'query' => [
-                    'Type' => 'carrier',
-                ],
-            ]);
-        } catch (ClientException $e) {
-            return 'invalid';
-        } catch (ServerException $e) {
-            $response = $e->getResponse();
-            $this->logger->error('[phonenumber helper] Could not perform validation '
-                . 'due to server error', [
-                    'message' => $response->getBody()->getContents(),
-                    'status_code' => $response->getStatusCode(),
-                    'phonenumber' => $phonenumber,
-                ]);
-
-            return null;
-        } catch (ConnectException $e) {
-            $this->logger->error('[phonenumber helper] Could not format number '
-                . 'due to connect error', [
-                    'message' => $e->getMessage(),
-                    'phonenumber' => $phonenumber,
-                ]);
-
-            return null;
-        }
-
-        $validation = json_decode($response->getBody()->getContents())->carrier->type;
-
-        $item
-            ->set($validation)
-            // expires after 12h
-            ->expiresAfter(3600 * 12);
-
-        $this->cachePool->save($item);
-
-        return $validation;
-    }
-}
diff --git a/src/Bundle/ChillMainBundle/Validation/Constraint/PhonenumberConstraint.php b/src/Bundle/ChillMainBundle/Validation/Constraint/PhonenumberConstraint.php
deleted file mode 100644
index 27fbe2f50..000000000
--- a/src/Bundle/ChillMainBundle/Validation/Constraint/PhonenumberConstraint.php
+++ /dev/null
@@ -1,38 +0,0 @@
-<?php
-
-/**
- * Chill is a software for social workers
- *
- * For the full copyright and license information, please view
- * the LICENSE file that was distributed with this source code.
- */
-
-declare(strict_types=1);
-
-namespace Chill\MainBundle\Validation\Constraint;
-
-use Symfony\Component\Validator\Constraint;
-
-/**
- * @Annotation
- */
-class PhonenumberConstraint extends Constraint
-{
-    public $notLandlineMessage = 'This is not a landline phonenumber';
-
-    public $notMobileMessage = 'This is not a mobile phonenumber';
-
-    public $notValidMessage = 'This is not a valid phonenumber';
-
-    /**
-     * The type of phone: landline (not able to receive sms) or mobile (can receive sms).
-     *
-     * @var string 'landline', 'mobile' or 'any'
-     */
-    public $type;
-
-    public function validatedBy()
-    {
-        return \Chill\MainBundle\Validation\Validator\ValidPhonenumber::class;
-    }
-}
diff --git a/src/Bundle/ChillMainBundle/Validation/Validator/ValidPhonenumber.php b/src/Bundle/ChillMainBundle/Validation/Validator/ValidPhonenumber.php
deleted file mode 100644
index 5f2a5bf14..000000000
--- a/src/Bundle/ChillMainBundle/Validation/Validator/ValidPhonenumber.php
+++ /dev/null
@@ -1,81 +0,0 @@
-<?php
-
-/**
- * Chill is a software for social workers
- *
- * For the full copyright and license information, please view
- * the LICENSE file that was distributed with this source code.
- */
-
-declare(strict_types=1);
-
-namespace Chill\MainBundle\Validation\Validator;
-
-use Chill\MainBundle\Phonenumber\PhonenumberHelper;
-use LogicException;
-use Psr\Log\LoggerInterface;
-use Symfony\Component\Validator\Constraint;
-use Symfony\Component\Validator\ConstraintValidator;
-
-class ValidPhonenumber extends ConstraintValidator
-{
-    protected $logger;
-
-    /**
-     * @var PhonenumberHelper
-     */
-    protected $phonenumberHelper;
-
-    public function __construct(
-        LoggerInterface $logger,
-        PhonenumberHelper $phonenumberHelper
-    ) {
-        $this->phonenumberHelper = $phonenumberHelper;
-        $this->logger = $logger;
-    }
-
-    /**
-     * @param string $value
-     * @param \Chill\MainBundle\Validation\Constraint\PhonenumberConstraint $constraint
-     */
-    public function validate($value, Constraint $constraint)
-    {
-        if (false === $this->phonenumberHelper->isPhonenumberValidationConfigured()) {
-            $this->logger->debug('[phonenumber] skipping validation due to not configured helper');
-
-            return;
-        }
-
-        if (empty($value)) {
-            return;
-        }
-
-        switch ($constraint->type) {
-            case 'landline':
-                $isValid = $this->phonenumberHelper->isValidPhonenumberLandOrVoip($value);
-                $message = $constraint->notLandlineMessage;
-
-                break;
-
-            case 'mobile':
-                $isValid = $this->phonenumberHelper->isValidPhonenumberMobile($value);
-                $message = $constraint->notMobileMessage;
-
-                break;
-
-            case 'any':
-                $isValid = $this->phonenumberHelper->isValidPhonenumberAny($value);
-                $message = $constraint->notValidMessage;
-
-                break;
-
-            default:
-                throw new LogicException(sprintf("This type '%s' is not implemented. "
-                    . "Possible values are 'mobile', 'landline' or 'any'", $constraint->type));
-        }
-
-        if (false === $isValid) {
-            $this->context->addViolation($message, ['%phonenumber%' => $value]);
-        }
-    }
-}
diff --git a/src/Bundle/ChillMainBundle/config/services/phonenumber.yaml b/src/Bundle/ChillMainBundle/config/services/phonenumber.yaml
deleted file mode 100644
index 46fa853ee..000000000
--- a/src/Bundle/ChillMainBundle/config/services/phonenumber.yaml
+++ /dev/null
@@ -1,21 +0,0 @@
-services:
-    _defaults:
-        autowire: true
-        autoconfigure: true
-
-    Chill\MainBundle\Phonenumber\PhonenumberHelper:
-        arguments:
-            $config: '%chill_main.phone_helper%'
-            $cachePool: '@cache.user_data'
-
-    Chill\MainBundle\Phonenumber\Templating:
-        arguments:
-            $phonenumberHelper: '@Chill\MainBundle\Phonenumber\PhonenumberHelper'
-        tags:
-            - { name: twig.extension }
-
-    Chill\MainBundle\Validation\Validator\ValidPhonenumber:
-        arguments:
-            $phonenumberHelper: '@Chill\MainBundle\Phonenumber\PhonenumberHelper'
-        tags:
-            - { name: validator.constraint_validator }