diff --git a/01-network.tf b/01-network.tf
index b1aa220..10d6ad4 100644
--- a/01-network.tf
+++ b/01-network.tf
@@ -4,7 +4,6 @@ resource "stackit_network" "wan_network" {
   project_id          = module.project.project_info["project1"].project_id
   name                = "wan_network"
   ipv4_nameservers    = ["1.1.1.1", "8.8.8.8"]
-  ipv4_prefix_length  = 24
   ipv4_prefix         = "10.220.0.0/24"
   routed              = true
 }
@@ -12,7 +11,6 @@ resource "stackit_network" "wan_network" {
 resource "stackit_network" "lan_network1" {
   project_id         = module.project.project_info["project1"].project_id
   name               = "lan_network1"
-  ipv4_prefix_length = 24
   ipv4_prefix        = "10.220.1.0/24"
   routed              = true
 }
@@ -20,7 +18,6 @@ resource "stackit_network" "lan_network1" {
 resource "stackit_network" "lan_network2" {
   project_id         = module.project.project_info["project1"].project_id
   name               = "lan_network2"
-  ipv4_prefix_length = 24
   ipv4_prefix        = "10.220.2.0/24"
   routed              = true
 }
@@ -28,7 +25,6 @@ resource "stackit_network" "lan_network2" {
 resource "stackit_network" "lan_network3" {
   project_id         = module.project.project_info["project1"].project_id
   name               = "lan_network3"
-  ipv4_prefix_length = 24
   ipv4_prefix        = "10.220.3.0/24"
   routed              = false
 }
@@ -69,7 +65,6 @@ resource "stackit_network_interface" "lan3" {
 resource "stackit_network" "p2_lan_network1" {
   project_id         = module.project.project_info["project2"].project_id
   name               = "p2_lan_network"
-  ipv4_prefix_length = 24
   ipv4_prefix        = "10.220.5.0/24"
   routed              = true
 }
@@ -88,7 +83,6 @@ resource "stackit_network_interface" "p2_lan1" {
 resource "stackit_network" "p3_lan_network1" {
   project_id         = module.project.project_info["project3"].project_id
   name               = "p3_lan_network"
-  ipv4_prefix_length = 24
   ipv4_prefix        = "10.220.6.0/24"
   routed              = true
 }
@@ -104,7 +98,6 @@ resource "stackit_network_interface" "p3_lan1" {
 /* resource "stackit_network" "p2_wan_network1" {
   project_id         = module.project.project_info["project2"].project_id
   name               = "wan"
-  ipv4_prefix_length = 24
   ipv4_prefix        = "10.220.6.0/24"
   routed              = true
 }
diff --git a/08-ske.tf b/08-ske.tf
index b983043..6b19d90 100644
--- a/08-ske.tf
+++ b/08-ske.tf
@@ -37,5 +37,4 @@ resource "stackit_network" "ske_network" {
   project_id          = module.project.project_info["project4"].project_id
   name                = "ske_network"
   ipv4_nameservers    = ["1.1.1.1", "9.9.9.9"]
-  ipv4_prefix_length  = 24
-}
\ No newline at end of file
+}