diff --git a/docs/models/ipam/service.md b/docs/models/ipam/service.md
index a08267fc8..50579ce6b 100644
--- a/docs/models/ipam/service.md
+++ b/docs/models/ipam/service.md
@@ -81,4 +81,4 @@ The [IP address(es)](./ipaddress.md) to which this service is bound. If no IP ad
 
 ## Bulk Import (CSV)
 
-When importing application services or [application service templates](./servicetemplate.md) via CSV, all port mappings for a row are given in a single `port_mappings` column as a comma-separated list of `protocol/port` pairs enclosed in double quotes. For example, `"tcp/80,tcp/443,udp/53"`. Protocols may be specified in any case.
+When importing application services or [application service templates](./servicetemplate.md) via CSV, all port mappings for a row are given in a single `port_mappings` column as a comma-separated list of `protocol/port` pairs enclosed in double quotes. For example, `"tcp/80,tcp/443,udp/53"`. A pair's port may be given as a hyphen range, for example `"tcp/8000-8010"`. Protocols may be entered in uppercase or lowercase.
diff --git a/netbox/ipam/forms/bulk_import.py b/netbox/ipam/forms/bulk_import.py
index 89dcdb645..488014f02 100644
--- a/netbox/ipam/forms/bulk_import.py
+++ b/netbox/ipam/forms/bulk_import.py
@@ -9,6 +9,7 @@ from dcim.models import Device, Interface, Site
 from ipam.choices import *
 from ipam.constants import *
 from ipam.models import *
+from ipam.utils import expand_port_mapping, split_port_mapping
 from ipam.validators import validate_port_mappings
 from netbox.forms import NetBoxModelImportForm, OrganizationalModelImportForm, PrimaryModelImportForm
 from tenancy.models import Tenant
@@ -592,28 +593,36 @@ class VLANTranslationRuleImportForm(NetBoxModelImportForm):
 class ServicePortMappingsImportMixin(forms.Form):
     """
     Adds a ``port_mappings`` CSV column parsed from a comma-separated list of ``protocol/port`` pairs
-    (e.g. "tcp/80,udp/53") into the model's flat ``['tcp/80', 'udp/53']`` list.
+    (e.g. "tcp/80,udp/53") into the model's flat ``['tcp/80', 'udp/53']`` list. A pair's port half may be
+    a hyphen range (e.g. "tcp/8000-8010"), matching the port syntax the edit form accepts.
     """
     port_mappings = SimpleArrayField(
         base_field=forms.CharField(),
         label=_('Port mappings'),
         required=True,
-        help_text=_('Comma-separated list of protocol/port pairs in double quotes (e.g. "tcp/80,udp/53").')
+        help_text=_('Comma-separated list of protocol/port pairs in double quotes (e.g. "tcp/80,udp/53"). '
+                    'A port range may be given with a hyphen (e.g. "tcp/8000-8010").')
     )
 
     def clean_port_mappings(self):
         mappings = self.cleaned_data.get('port_mappings')
         if not mappings:
             return []
-        # Strip surrounding whitespace from each CSV token; validate_port_mappings matches the protocol
-        # case-insensitively and returns the normalized (canonical) list, so protocols may be given in
-        # any case (e.g. "TCP/80") without folding here.
-        mappings = [mapping.strip() for mapping in mappings]
+        # Expand any hyphen range in a pair's port half (tcp/8000-8010 -> tcp/8000, tcp/8001, ...) so the
+        # CSV accepts the same port syntax as the edit form. validate_port_mappings then normalizes and
+        # checks each expanded pair, matching the protocol case-insensitively.
+        expanded = []
+        for mapping in mappings:
+            protocol, ports = split_port_mapping(mapping.strip())
+            try:
+                expanded.extend(expand_port_mapping(protocol, ports))
+            except DjangoValidationError as exc:
+                raise forms.ValidationError(exc.messages)
         try:
-            mappings = validate_port_mappings(mappings)
+            expanded = validate_port_mappings(expanded)
         except DjangoValidationError as exc:
             raise forms.ValidationError(exc.messages)
-        return mappings
+        return expanded
 
 
 class ServiceTemplateImportForm(ServicePortMappingsImportMixin, PrimaryModelImportForm):
diff --git a/netbox/ipam/forms/fields.py b/netbox/ipam/forms/fields.py
index 66a03afe1..a8ec23dd9 100644
--- a/netbox/ipam/forms/fields.py
+++ b/netbox/ipam/forms/fields.py
@@ -77,9 +77,9 @@ class PortMappingField(forms.Field):
                 # already-expanded list, rejects a blank protocol, and preserves a protocol-without-ports
                 # row as a bare 'protocol/' token. Errors are re-raised with the row's position (among the
                 # submitted rows — the widget omits entirely-blank ones), since it renders one row per
-                # protocol and an unqualified "Select a protocol" gives no clue which row to fix. Errors
-                # from validate_port_mappings() below are deliberately left unqualified: each quotes the
-                # offending mapping already, and a duplicate spans two rows.
+                # protocol and an unqualified "must specify a protocol" gives no clue which row to fix.
+                # Errors from validate_port_mappings() below are deliberately left unqualified: each quotes
+                # the offending mapping already, and a duplicate spans two rows.
                 try:
                     mappings.extend(expand_port_mapping(protocol, raw_ports))
                 except ValidationError as e:
diff --git a/netbox/ipam/tests/test_forms.py b/netbox/ipam/tests/test_forms.py
index 7d0ad38f1..4092c2cfd 100644
--- a/netbox/ipam/tests/test_forms.py
+++ b/netbox/ipam/tests/test_forms.py
@@ -397,11 +397,29 @@ class ServiceTemplateImportFormTestCase(TestCase):
         self.assertFalse(form.is_valid())
         self.assertIn('port_mappings', form.errors)
 
+    def test_port_range_expanded(self):
+        form = ServiceTemplateImportForm(data={'name': 'X', 'port_mappings': 'tcp/8000-8002,udp/53'})
+        self.assertTrue(form.is_valid(), form.errors)
+        self.assertEqual(
+            form.cleaned_data['port_mappings'],
+            ['tcp/8000', 'tcp/8001', 'tcp/8002', 'udp/53'],
+        )
+
+    def test_reversed_port_range_rejected(self):
+        form = ServiceTemplateImportForm(data={'name': 'X', 'port_mappings': 'tcp/8010-8000'})
+        self.assertFalse(form.is_valid())
+        self.assertIn('port_mappings', form.errors)
+
     def test_empty_port_rejected(self):
         form = ServiceTemplateImportForm(data={'name': 'X', 'port_mappings': 'tcp/'})
         self.assertFalse(form.is_valid())
         self.assertIn('port_mappings', form.errors)
 
+    def test_blank_protocol_rejected(self):
+        form = ServiceTemplateImportForm(data={'name': 'X', 'port_mappings': '/80'})
+        self.assertFalse(form.is_valid())
+        self.assertIn('port_mappings', form.errors)
+
 
 class ServiceFilterFormTestCase(TestCase):
     """
diff --git a/netbox/ipam/utils.py b/netbox/ipam/utils.py
index 342f14c6e..cfbab053e 100644
--- a/netbox/ipam/utils.py
+++ b/netbox/ipam/utils.py
@@ -525,10 +525,10 @@ def expand_port_mapping(protocol, ports):
     # protocol case-insensitively and stores the canonical value.
     protocol = (protocol or '').strip()
     if not protocol:
-        # A row with ports but no protocol (e.g. the initial blank row where the user typed a port but
-        # never picked a protocol) would otherwise expand to '/80' and surface as a confusing
-        # "Invalid protocol:" with a blank value. Report the real problem instead.
-        raise ValidationError(_("Select a protocol for each port mapping."))
+        # Ports given with no protocol would otherwise expand to '/80' and surface as a confusing
+        # "Invalid protocol:" with a blank value. Report the real problem instead, in wording that fits
+        # all entry paths that route through here (the form widget and CSV import).
+        raise ValidationError(_("Each port mapping must specify a protocol."))
 
     if isinstance(ports, (list, tuple)):
         # Already-expanded ports are paired as-is; validate_port_mappings() checks each value's range.