diff --git a/netbox/ipam/api/views.py b/netbox/ipam/api/views.py
index 92d326e2c..fdc4b0a8a 100644
--- a/netbox/ipam/api/views.py
+++ b/netbox/ipam/api/views.py
@@ -34,7 +34,7 @@ class IPAMRootView(APIRootView):
 #
 
 class ASNRangeViewSet(NetBoxModelViewSet):
-    queryset = ASNRange.objects.prefetch_related('tenant').annotate(
+    queryset = ASNRange.objects.prefetch_related('tenant', 'rir').annotate(
         asn_count=count_related(ASN, 'range')
     )
     serializer_class = serializers.ASNRangeSerializer
@@ -251,8 +251,11 @@ class AvailableASNsView(ObjectValidationMixin, APIView):
 
         # Assign ASNs from the list of available IPs and copy VRF assignment from the parent
         for i, requested_asn in enumerate(requested_asns):
-            requested_asn['asn'] = available_asns[i]
-            requested_asn['range'] = asnrange.pk
+            requested_asn.update({
+                'rir': asnrange.rir.pk,
+                'range': asnrange.pk,
+                'asn': available_asns[i],
+            })
 
         # Initialize the serializer with a list or a single object depending on what was requested
         context = {'request': request}
diff --git a/netbox/ipam/filtersets.py b/netbox/ipam/filtersets.py
index 811ff7223..9695b9dc5 100644
--- a/netbox/ipam/filtersets.py
+++ b/netbox/ipam/filtersets.py
@@ -169,6 +169,16 @@ class AggregateFilterSet(NetBoxModelFilterSet, TenancyFilterSet):
 
 
 class ASNRangeFilterSet(OrganizationalModelFilterSet, TenancyFilterSet):
+    rir_id = django_filters.ModelMultipleChoiceFilter(
+        queryset=RIR.objects.all(),
+        label=_('RIR (ID)'),
+    )
+    rir = django_filters.ModelMultipleChoiceFilter(
+        field_name='rir__slug',
+        queryset=RIR.objects.all(),
+        to_field_name='slug',
+        label=_('RIR (slug)'),
+    )
 
     class Meta:
         model = ASNRange
diff --git a/netbox/ipam/forms/bulk_edit.py b/netbox/ipam/forms/bulk_edit.py
index 1ef6bf911..e74c6ea87 100644
--- a/netbox/ipam/forms/bulk_edit.py
+++ b/netbox/ipam/forms/bulk_edit.py
@@ -99,6 +99,11 @@ class RIRBulkEditForm(NetBoxModelBulkEditForm):
 
 
 class ASNRangeBulkEditForm(NetBoxModelBulkEditForm):
+    rir = DynamicModelChoiceField(
+        queryset=RIR.objects.all(),
+        required=False,
+        label=_('RIR')
+    )
     tenant = DynamicModelChoiceField(
         queryset=Tenant.objects.all(),
         required=False
@@ -110,9 +115,9 @@ class ASNRangeBulkEditForm(NetBoxModelBulkEditForm):
 
     model = ASNRange
     fieldsets = (
-        (None, ('tenant', 'description')),
+        (None, ('rir', 'tenant', 'description')),
     )
-    nullable_fields = ('date_added', 'description')
+    nullable_fields = ('description',)
 
 
 class ASNBulkEditForm(NetBoxModelBulkEditForm):
diff --git a/netbox/ipam/forms/bulk_import.py b/netbox/ipam/forms/bulk_import.py
index 1fc1bf962..216a937b8 100644
--- a/netbox/ipam/forms/bulk_import.py
+++ b/netbox/ipam/forms/bulk_import.py
@@ -89,6 +89,11 @@ class AggregateImportForm(NetBoxModelImportForm):
 
 
 class ASNRangeImportForm(NetBoxModelImportForm):
+    rir = CSVModelChoiceField(
+        queryset=RIR.objects.all(),
+        to_field_name='name',
+        help_text=_('Assigned RIR')
+    )
     tenant = CSVModelChoiceField(
         queryset=Tenant.objects.all(),
         required=False,
@@ -98,7 +103,7 @@ class ASNRangeImportForm(NetBoxModelImportForm):
 
     class Meta:
         model = ASNRange
-        fields = ('name', 'slug', 'start', 'end', 'tenant', 'description', 'tags')
+        fields = ('name', 'slug', 'rir', 'start', 'end', 'tenant', 'description', 'tags')
 
 
 class ASNImportForm(NetBoxModelImportForm):
diff --git a/netbox/ipam/forms/filtersets.py b/netbox/ipam/forms/filtersets.py
index 491fd9be1..737f4d16e 100644
--- a/netbox/ipam/forms/filtersets.py
+++ b/netbox/ipam/forms/filtersets.py
@@ -119,9 +119,14 @@ class ASNRangeFilterForm(TenancyFilterForm, NetBoxModelFilterSetForm):
     model = ASNRange
     fieldsets = (
         (None, ('q', 'filter_id', 'tag')),
-        ('Range', ('start', 'end')),
+        ('Range', ('rir_id', 'start', 'end')),
         ('Tenant', ('tenant_group_id', 'tenant_id')),
     )
+    rir_id = DynamicModelMultipleChoiceField(
+        queryset=RIR.objects.all(),
+        required=False,
+        label=_('RIR')
+    )
     start = forms.IntegerField(
         required=False
     )
diff --git a/netbox/ipam/forms/model_forms.py b/netbox/ipam/forms/model_forms.py
index 44353f9fa..4c14b6bd4 100644
--- a/netbox/ipam/forms/model_forms.py
+++ b/netbox/ipam/forms/model_forms.py
@@ -130,16 +130,20 @@ class AggregateForm(TenancyForm, NetBoxModelForm):
 
 
 class ASNRangeForm(TenancyForm, NetBoxModelForm):
+    rir = DynamicModelChoiceField(
+        queryset=RIR.objects.all(),
+        label=_('RIR'),
+    )
     slug = SlugField()
     fieldsets = (
-        ('ASN Range', ('name', 'slug', 'start', 'end', 'description', 'tags')),
+        ('ASN Range', ('name', 'slug', 'rir', 'start', 'end', 'description', 'tags')),
         ('Tenancy', ('tenant_group', 'tenant')),
     )
 
     class Meta:
         model = ASNRange
         fields = [
-            'name', 'slug', 'start', 'end', 'tenant_group', 'tenant', 'description', 'tags'
+            'name', 'slug', 'rir', 'start', 'end', 'tenant_group', 'tenant', 'description', 'tags'
         ]
 
 
diff --git a/netbox/ipam/migrations/0064_asnrange.py b/netbox/ipam/migrations/0064_asnrange.py
index c6ba63e64..c15b7b504 100644
--- a/netbox/ipam/migrations/0064_asnrange.py
+++ b/netbox/ipam/migrations/0064_asnrange.py
@@ -1,4 +1,4 @@
-# Generated by Django 4.1.7 on 2023-02-25 19:49
+# Generated by Django 4.1.7 on 2023-02-25 21:18
 
 from django.db import migrations, models
 import django.db.models.deletion
@@ -28,6 +28,7 @@ class Migration(migrations.Migration):
                 ('slug', models.SlugField(max_length=100, unique=True)),
                 ('start', ipam.fields.ASNField()),
                 ('end', ipam.fields.ASNField()),
+                ('rir', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='asn_ranges', to='ipam.rir')),
                 ('tags', taggit.managers.TaggableManager(through='extras.TaggedItem', to='extras.Tag')),
                 ('tenant', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.PROTECT, related_name='asn_ranges', to='tenancy.tenant')),
             ],
diff --git a/netbox/ipam/models/asns.py b/netbox/ipam/models/asns.py
index 3ee33286d..76b7f8570 100644
--- a/netbox/ipam/models/asns.py
+++ b/netbox/ipam/models/asns.py
@@ -17,6 +17,12 @@ class ASN(PrimaryModel):
     An autonomous system (AS) number is typically used to represent an independent routing domain. A site can have
     one or more ASNs assigned to it.
     """
+    rir = models.ForeignKey(
+        to='ipam.RIR',
+        on_delete=models.PROTECT,
+        related_name='asns',
+        verbose_name='RIR'
+    )
     range = models.ForeignKey(
         to='ipam.ASNRange',
         on_delete=models.PROTECT,
@@ -28,12 +34,6 @@ class ASN(PrimaryModel):
         verbose_name='ASN',
         help_text=_('32-bit autonomous system number')
     )
-    rir = models.ForeignKey(
-        to='ipam.RIR',
-        on_delete=models.PROTECT,
-        related_name='asns',
-        verbose_name='RIR'
-    )
     tenant = models.ForeignKey(
         to='tenancy.Tenant',
         on_delete=models.PROTECT,
@@ -90,6 +90,12 @@ class ASNRange(OrganizationalModel):
         max_length=100,
         unique=True
     )
+    rir = models.ForeignKey(
+        to='ipam.RIR',
+        on_delete=models.PROTECT,
+        related_name='asn_ranges',
+        verbose_name='RIR'
+    )
     start = ASNField()
     end = ASNField()
     tenant = models.ForeignKey(
diff --git a/netbox/ipam/tables/asn.py b/netbox/ipam/tables/asn.py
index 9d860ad6b..2db3457af 100644
--- a/netbox/ipam/tables/asn.py
+++ b/netbox/ipam/tables/asn.py
@@ -15,6 +15,9 @@ class ASNRangeTable(TenancyColumnsMixin, NetBoxTable):
     name = tables.Column(
         linkify=True
     )
+    rir = tables.Column(
+        linkify=True
+    )
     tags = columns.TagColumn(
         url_name='ipam:asnrange_list'
     )
@@ -27,10 +30,10 @@ class ASNRangeTable(TenancyColumnsMixin, NetBoxTable):
     class Meta(NetBoxTable.Meta):
         model = ASNRange
         fields = (
-            'pk', 'name', 'slug', 'start', 'end', 'asn_count', 'tenant', 'tenant_group', 'description', 'tags',
+            'pk', 'name', 'slug', 'rir', 'start', 'end', 'asn_count', 'tenant', 'tenant_group', 'description', 'tags',
             'created', 'last_updated', 'actions',
         )
-        default_columns = ('pk', 'name', 'start', 'end', 'tenant', 'asn_count', 'description')
+        default_columns = ('pk', 'name', 'rir', 'start', 'end', 'tenant', 'asn_count', 'description')
 
 
 class ASNTable(TenancyColumnsMixin, NetBoxTable):
diff --git a/netbox/templates/ipam/asnrange.html b/netbox/templates/ipam/asnrange.html
index a2194e96d..5a6b2ac49 100644
--- a/netbox/templates/ipam/asnrange.html
+++ b/netbox/templates/ipam/asnrange.html
@@ -15,6 +15,12 @@
               <td>Name</td>
               <td>{{ object.name }}</td>
             </tr>
+            <tr>
+              <td>RIR</td>
+              <td>
+                <a href="{% url 'ipam:asnrange_list' %}?rir={{ object.rir.slug }}">{{ object.rir }}</a>
+              </td>
+            </tr>
             <tr>
               <td>Range</td>
               <td>{{ object.range_as_string }}</td>