diff --git a/ipv6ula/forms.py b/ipv6ula/forms.py
index 4756908..400f21c 100644
--- a/ipv6ula/forms.py
+++ b/ipv6ula/forms.py
@@ -1,6 +1,6 @@
 from django import forms
 import ipaddress
-from .models import validate_ula_prefix, ULA, validate_owner_ula_prefix
+from .models import validate_ula_prefix, ULA
 from django.core.exceptions import ValidationError
 import logging
 
diff --git a/ipv6ula/models.py b/ipv6ula/models.py
index 9b791f5..a91b964 100644
--- a/ipv6ula/models.py
+++ b/ipv6ula/models.py
@@ -31,31 +31,6 @@ def validate_ula_prefix(prefix):
             params = {'prefix': net }
         )
 
-def validate_owner_ula_prefix(prefix):
-    ula_net = ipaddress.IPv6Network("fd00::/8")
-    net_str = f"{prefix}/48"
-    net = ipaddress.IPv6Network(net_str, strict=False)
-
-    if not net.subnet_of(ula_net):
-        raise ValidationError(
-            _(f"Prefix {net} is not within ULA range ({ula_net})"),
-            code='invalid',
-            params = {'prefix': net }
-        )
-
-
-    try:
-        ULA.objects.get(prefix=str(net[0]))
-    except ULA.DoesNotExist:
-        raise ValidationError(
-            _(f"Prefix {net} is not your prefix"),
-            code='invalid',
-            params = {'prefix': net }
-        )
-    else:
-        pass
-
-
 class User(AbstractUser):
     pass