diff --git a/equinix/data_source_network_device.go b/equinix/data_source_network_device.go
index f63670dd0..121689512 100644
--- a/equinix/data_source_network_device.go
+++ b/equinix/data_source_network_device.go
@@ -3,6 +3,7 @@ package equinix
 import (
 	"context"
 	"fmt"
+	"slices"
 	"strings"
 
 	"github.com/equinix/terraform-provider-equinix/internal/config"
@@ -686,7 +687,7 @@ func dataSourceNetworkDeviceRead(ctx context.Context, d *schema.ResourceData, m
 		return diag.Errorf("cannot fetch primary network device due to '%v'", err)
 	}
 
-	if isStringInSlice(ne.StringValue(primary.Status), []string{ne.DeviceStateDeprovisioning, ne.DeviceStateDeprovisioned}) {
+	if slices.Contains([]string{ne.DeviceStateDeprovisioning, ne.DeviceStateDeprovisioned}, ne.StringValue(primary.Status)) {
 		d.SetId("")
 		return diags
 	}
diff --git a/equinix/provider.go b/equinix/provider.go
index 199744767..ae6bea574 100644
--- a/equinix/provider.go
+++ b/equinix/provider.go
@@ -3,6 +3,7 @@ package equinix
 import (
 	"context"
 	"fmt"
+	"slices"
 	"strings"
 	"time"
 
@@ -195,7 +196,7 @@ func configureProvider(ctx context.Context, d *schema.ResourceData, p *schema.Pr
 
 func stringsFound(source []string, target []string) bool {
 	for i := range source {
-		if !isStringInSlice(source[i], target) {
+		if !slices.Contains(target, source[i]) {
 			return false
 		}
 	}
@@ -204,16 +205,7 @@ func stringsFound(source []string, target []string) bool {
 
 func atLeastOneStringFound(source []string, target []string) bool {
 	for i := range source {
-		if isStringInSlice(source[i], target) {
-			return true
-		}
-	}
-	return false
-}
-
-func isStringInSlice(needle string, hay []string) bool {
-	for i := range hay {
-		if needle == hay[i] {
+		if slices.Contains(target, source[i]) {
 			return true
 		}
 	}
diff --git a/equinix/resource_ecx_l2_connection.go b/equinix/resource_ecx_l2_connection.go
index 8db6f778f..17bebb200 100644
--- a/equinix/resource_ecx_l2_connection.go
+++ b/equinix/resource_ecx_l2_connection.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"log"
+	"slices"
 	"strings"
 	"time"
 
@@ -714,12 +715,12 @@ func resourceECXL2ConnectionRead(ctx context.Context, d *schema.ResourceData, m
 	if err != nil {
 		return diag.Errorf("cannot fetch primary connection due to %v", err)
 	}
-	if isStringInSlice(ecx.StringValue(primary.Status), []string{
+	if slices.Contains([]string{
 		ecx.ConnectionStatusPendingDelete,
 		ecx.ConnectionStatusDeprovisioning,
 		ecx.ConnectionStatusDeprovisioned,
 		ecx.ConnectionStatusDeleted,
-	}) {
+	}, ecx.StringValue(primary.Status)) {
 		d.SetId("")
 		return diags
 	}
diff --git a/equinix/resource_network_device.go b/equinix/resource_network_device.go
index 65ee573f0..dc1269e01 100644
--- a/equinix/resource_network_device.go
+++ b/equinix/resource_network_device.go
@@ -7,6 +7,7 @@ import (
 	"log"
 	"os"
 	"path/filepath"
+	"slices"
 	"time"
 
 	"github.com/equinix/terraform-provider-equinix/internal/config"
@@ -972,7 +973,7 @@ func resourceNetworkDeviceRead(ctx context.Context, d *schema.ResourceData, m in
 	if err != nil {
 		return diag.Errorf("cannot fetch primary network device due to %v", err)
 	}
-	if isStringInSlice(ne.StringValue(primary.Status), []string{ne.DeviceStateDeprovisioning, ne.DeviceStateDeprovisioned}) {
+	if slices.Contains([]string{ne.DeviceStateDeprovisioning, ne.DeviceStateDeprovisioned}, ne.StringValue(primary.Status)) {
 		d.SetId("")
 		return diags
 	}