diff --git a/docs/release-notes/version-2.6.md b/docs/release-notes/version-2.6.md
index 3149f3cb9..0e3c37c16 100644
--- a/docs/release-notes/version-2.6.md
+++ b/docs/release-notes/version-2.6.md
@@ -3,6 +3,7 @@
 ## Enhancements
 
 * [#2050](https://github.com/netbox-community/netbox/issues/2050) - Preview image attachments when hovering the link
+* [#2589](https://github.com/netbox-community/netbox/issues/2589) - Toggle for showing available prefixes/ip addresses
 * [#3187](https://github.com/netbox-community/netbox/issues/3187) - Add rack selection field to rack elevations
 * [#3851](https://github.com/netbox-community/netbox/issues/3851) - Allow passing initial data to custom script forms
 
diff --git a/netbox/ipam/views.py b/netbox/ipam/views.py
index 2cc1a0ea8..26df90c93 100644
--- a/netbox/ipam/views.py
+++ b/netbox/ipam/views.py
@@ -333,7 +333,10 @@ class AggregateView(PermissionRequiredMixin, View):
         ).annotate_depth(
             limit=0
         )
-        child_prefixes = add_available_prefixes(aggregate.prefix, child_prefixes)
+
+        # Add available prefixes to the table if requested
+        if request.GET.get('show_available', 'true') == 'true':
+            child_prefixes = add_available_prefixes(aggregate.prefix, child_prefixes)
 
         prefix_table = tables.PrefixDetailTable(child_prefixes)
         if request.user.has_perm('ipam.change_prefix') or request.user.has_perm('ipam.delete_prefix'):
@@ -356,6 +359,7 @@ class AggregateView(PermissionRequiredMixin, View):
             'aggregate': aggregate,
             'prefix_table': prefix_table,
             'permissions': permissions,
+            'show_available': request.GET.get('show_available', 'true') == 'true',
         })
 
 
@@ -511,8 +515,8 @@ class PrefixPrefixesView(PermissionRequiredMixin, View):
             'site', 'vlan', 'role',
         ).annotate_depth(limit=0)
 
-        # Annotate available prefixes
-        if child_prefixes:
+        # Add available prefixes to the table if requested
+        if child_prefixes and request.GET.get('show_available', 'true') == 'true':
             child_prefixes = add_available_prefixes(prefix.prefix, child_prefixes)
 
         prefix_table = tables.PrefixDetailTable(child_prefixes)
@@ -539,6 +543,7 @@ class PrefixPrefixesView(PermissionRequiredMixin, View):
             'permissions': permissions,
             'bulk_querystring': 'vrf_id={}&within={}'.format(prefix.vrf.pk if prefix.vrf else '0', prefix.prefix),
             'active_tab': 'prefixes',
+            'show_available': request.GET.get('show_available', 'true') == 'true',
         })
 
 
@@ -553,7 +558,10 @@ class PrefixIPAddressesView(PermissionRequiredMixin, View):
         ipaddresses = prefix.get_child_ips().prefetch_related(
             'vrf', 'interface__device', 'primary_ip4_for', 'primary_ip6_for'
         )
-        ipaddresses = add_available_ipaddresses(prefix.prefix, ipaddresses, prefix.is_pool)
+
+        # Add available IP addresses to the table if requested
+        if request.GET.get('show_available', 'true') == 'true':
+            ipaddresses = add_available_ipaddresses(prefix.prefix, ipaddresses, prefix.is_pool)
 
         ip_table = tables.IPAddressTable(ipaddresses)
         if request.user.has_perm('ipam.change_ipaddress') or request.user.has_perm('ipam.delete_ipaddress'):
@@ -579,6 +587,7 @@ class PrefixIPAddressesView(PermissionRequiredMixin, View):
             'permissions': permissions,
             'bulk_querystring': 'vrf_id={}&parent={}'.format(prefix.vrf.pk if prefix.vrf else '0', prefix.prefix),
             'active_tab': 'ip-addresses',
+            'show_available': request.GET.get('show_available', 'true') == 'true',
         })
 
 
diff --git a/netbox/templates/ipam/aggregate.html b/netbox/templates/ipam/aggregate.html
index daa7b5107..d2dfe8888 100644
--- a/netbox/templates/ipam/aggregate.html
+++ b/netbox/templates/ipam/aggregate.html
@@ -40,6 +40,7 @@
     </div>
     <h1>{% block title %}{{ aggregate }}{% endblock %}</h1>
     {% include 'inc/created_updated.html' with obj=aggregate %}
+    {% include 'ipam/inc/toggle_available.html' %}
     <div class="pull-right noprint">
         {% custom_links aggregate %}
     </div>
diff --git a/netbox/templates/ipam/inc/toggle_available.html b/netbox/templates/ipam/inc/toggle_available.html
new file mode 100644
index 000000000..21d734d2d
--- /dev/null
+++ b/netbox/templates/ipam/inc/toggle_available.html
@@ -0,0 +1,9 @@
+{% load helpers %}
+{% if show_available is not None %}
+    <div class="pull-right">
+        <div class="btn-group" role="group">
+            <a href="{{ request.path }}{% querystring request show_available='true' %}" class="btn btn-default{% if show_available %} active disabled{% endif %}">Show available</a>
+            <a href="{{ request.path }}{% querystring request show_available='false' %}" class="btn btn-default{% if not show_available %} active disabled{% endif %}">Hide available</a>
+        </div>
+    </div>
+{% endif %}
diff --git a/netbox/templates/ipam/prefix.html b/netbox/templates/ipam/prefix.html
index 9ea34804e..56267786f 100644
--- a/netbox/templates/ipam/prefix.html
+++ b/netbox/templates/ipam/prefix.html
@@ -53,6 +53,7 @@
     </div>
     <h1>{% block title %}{{ prefix }}{% endblock %}</h1>
     {% include 'inc/created_updated.html' with obj=prefix %}
+    {% include 'ipam/inc/toggle_available.html' %}
     <div class="pull-right noprint">
         {% custom_links prefix %}
     </div>