diff --git a/requirements.txt b/requirements.txt
index fdfd4d7..1d75eb7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
+## The following requirements were added by pip freeze:
 amqp==5.1.1
 asgiref==3.5.0
 async-timeout==4.0.2
@@ -11,11 +12,13 @@ click-plugins==1.1.1
 click-repl==0.2.0
 Deprecated==1.2.13
 Django==4.0.4
+django-phonenumber-field==6.1.0
 icalendar==4.0.9
 idna==3.3
 kombu==5.2.4
 librabbitmq==2.0.0
 packaging==21.3
+phonenumbers==8.12.47
 prompt-toolkit==3.0.29
 psycopg2-binary==2.9.3
 pyparsing==3.0.8
diff --git a/shiftregister/app/forms.py b/shiftregister/app/forms.py
index baaabe7..5134d6c 100644
--- a/shiftregister/app/forms.py
+++ b/shiftregister/app/forms.py
@@ -1,6 +1,6 @@
 from django import forms
 from .models import Helper
-
+from phonenumber_field.formfields import PhoneNumberField
 
 def text_input(type=None):
     attrs = {"class": "input"}
@@ -15,7 +15,7 @@ class RegisterForm(forms.Form):
         max_length=Helper.name.field.max_length, label="Name", widget=text_input()
     )
     # actually verify phone number, lol
-    phone = forms.CharField(
+    phone = PhoneNumberField(
         max_length=Helper.phone.field.max_length,
         label="Handynummer für Benachrichtigungen",
         help_text="Wir nutzen deine Handynummer, um dir Benachrichtigungen zu deinen Schichten zu schicken. Wir löschen alle Daten 7 Tage nach dem Festival.",
diff --git a/shiftregister/app/migrations/0007_alter_helper_phone.py b/shiftregister/app/migrations/0007_alter_helper_phone.py
new file mode 100644
index 0000000..260fe3c
--- /dev/null
+++ b/shiftregister/app/migrations/0007_alter_helper_phone.py
@@ -0,0 +1,19 @@
+# Generated by Django 4.0.4 on 2022-04-27 12:41
+
+from django.db import migrations
+import phonenumber_field.modelfields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('app', '0006_shift_deleted'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='helper',
+            name='phone',
+            field=phonenumber_field.modelfields.PhoneNumberField(editable=False, max_length=128, primary_key=True, region=None, serialize=False),
+        ),
+    ]
diff --git a/shiftregister/app/models.py b/shiftregister/app/models.py
index 89cf961..b479bc9 100644
--- a/shiftregister/app/models.py
+++ b/shiftregister/app/models.py
@@ -4,7 +4,7 @@ from django.shortcuts import reverse
 from datetime import timedelta
 from django.utils import timezone
 from django.db.models import F, Count, Q, ExpressionWrapper
-
+from phonenumber_field.modelfields import PhoneNumberField
 
 class Room(models.Model):
     name = models.CharField(max_length=200, primary_key=True)
@@ -32,8 +32,7 @@ class Shift(models.Model):
 
 
 class Helper(models.Model):
-    # todo: add propper phone number validation, maybe even country code?
-    phone = models.CharField(max_length=200, primary_key=True, editable=False)
+    phone = PhoneNumberField(primary_key=True, editable=False)
     name = models.CharField(max_length=200)
     # change this to a generic state variable to allow for number blocking/account deactivation?
     number_validated = models.BooleanField(default=False)
diff --git a/shiftregister/app/templates/register.html b/shiftregister/app/templates/register.html
index 435125c..441ecaf 100644
--- a/shiftregister/app/templates/register.html
+++ b/shiftregister/app/templates/register.html
@@ -16,6 +16,9 @@
             {{ field }}
         </div>
 {% endif %}
+{%for error in  field.errors %}
+<p class="is-danger help"> {{ error }} </div>
+{% endfor %}
 {% if field.help_text %}
         <p class="is-size-7 mt-1">{{ field.help_text }}</p>
 {% endif %}
diff --git a/shiftregister/settings.py b/shiftregister/settings.py
index 64d4475..84773c4 100644
--- a/shiftregister/settings.py
+++ b/shiftregister/settings.py
@@ -46,6 +46,7 @@ INSTALLED_APPS = [
     "django.contrib.sessions",
     "django.contrib.messages",
     "django.contrib.staticfiles",
+    "phonenumber_field",
 ]
 
 MIDDLEWARE = [
@@ -162,3 +163,5 @@ if getenv("SENTRY_DSN"):
         auto_session_tracking=False,
         traces_sample_rate=0,
     )
+
+PHONENUMBER_DEFAULT_REGION = "DE"
\ No newline at end of file