diff --git a/pkg/semtech-loramac/contrib/semtech_loramac_getset.c b/pkg/semtech-loramac/contrib/semtech_loramac_getset.c
index 6a449a620e..29e65e560a 100644
--- a/pkg/semtech-loramac/contrib/semtech_loramac_getset.c
+++ b/pkg/semtech-loramac/contrib/semtech_loramac_getset.c
@@ -412,9 +412,20 @@ void semtech_loramac_set_channels_mask(semtech_loramac_t *mac, uint16_t *mask)
 {
     mutex_lock(&mac->lock);
     DEBUG("[semtech-loramac] setting channels mask\n");
-    MibRequestConfirm_t mibReqChannel;
-    mibReqChannel.Type = MIB_CHANNELS_MASK;
-    mibReqChannel.Param.ChannelsMask = mask;
-    LoRaMacMibSetRequestConfirm(&mibReqChannel);
+    MibRequestConfirm_t mibReq;
+    mibReq.Type = MIB_CHANNELS_MASK;
+    mibReq.Param.ChannelsMask = mask;
+    LoRaMacMibSetRequestConfirm(&mibReq);
+    mutex_unlock(&mac->lock);
+}
+
+void semtech_loramac_get_channels_mask(semtech_loramac_t *mac, uint16_t *mask)
+{
+    mutex_lock(&mac->lock);
+    DEBUG("[semtech-loramac] getting channels mask\n");
+    MibRequestConfirm_t mibReq;
+    mibReq.Type = MIB_CHANNELS_MASK;
+    LoRaMacMibGetRequestConfirm(&mibReq);
+    memcpy(mask, mibReq.Param.ChannelsMask, LORAMAC_CHANNELS_MASK_LEN);
     mutex_unlock(&mac->lock);
 }
diff --git a/pkg/semtech-loramac/include/semtech_loramac.h b/pkg/semtech-loramac/include/semtech_loramac.h
index d02ef09914..656454f55e 100644
--- a/pkg/semtech-loramac/include/semtech_loramac.h
+++ b/pkg/semtech-loramac/include/semtech_loramac.h
@@ -504,6 +504,14 @@ uint8_t semtech_loramac_get_rx2_dr(semtech_loramac_t *mac);
  */
 void semtech_loramac_set_uplink_counter(semtech_loramac_t *mac, uint32_t counter);
 
+/**
+ * @brief   Gets the Uplink Frame Counter
+ *
+ * @param[in] mac          Pointer to the mac
+ * @return                 Uplink frame counter
+ */
+uint32_t semtech_loramac_get_uplink_counter(semtech_loramac_t *mac);
+
 /**
  * @brief   Sets the Channels Mask
  *
@@ -513,12 +521,12 @@ void semtech_loramac_set_uplink_counter(semtech_loramac_t *mac, uint32_t counter
 void semtech_loramac_set_channels_mask(semtech_loramac_t *mac, uint16_t *mask);
 
 /**
- * @brief   Gets the Uplink Frame Counter
+ * @brief   Gets the Channels Mask
  *
  * @param[in] mac          Pointer to the mac
- * @return                 Uplink frame counter
+ * @param[in] mask         Mask array pointer
  */
-uint32_t semtech_loramac_get_uplink_counter(semtech_loramac_t *mac);
+void semtech_loramac_get_channels_mask(semtech_loramac_t *mac, uint16_t *mask);
 
 #ifdef MODULE_PERIPH_EEPROM
 /**
diff --git a/sys/include/net/loramac.h b/sys/include/net/loramac.h
index c602718c49..b857684aa9 100644
--- a/sys/include/net/loramac.h
+++ b/sys/include/net/loramac.h
@@ -548,13 +548,15 @@ extern "C" {
 #define LORAMAC_NETWORK_ID_LEN                  (3U)
 
 /**
- * @brief   Maximum length for channel mask
+ * @brief   Channel mask length
  *
- *          The actual length is set by each region-specific LoRaMac
- *          implementation (see CHANNELS_MASK_SIZE), which
- *          automatically slices down the channel array mask.
+ *          Must match CHANNELS_MASK_SIZE in src/mac/region/RegionXXYYY.c
  */
-#define LORAMAC_CHANNELS_MASK_MAX_LEN                     (6U)
+#if defined(REGION_AU915) || defined(REGION_CN470) || defined(REGION_US915) || defined(REGION_US915_HYBRID) || defined(REGION_AS923)
+#define LORAMAC_CHANNELS_MASK_LEN                     (6U)
+#else
+#define LORAMAC_CHANNELS_MASK_LEN                     (1U)
+#endif
 
 /** @} */
 
diff --git a/sys/shell/commands/sc_loramac.c b/sys/shell/commands/sc_loramac.c
index 540be6620a..75a78efef5 100644
--- a/sys/shell/commands/sc_loramac.c
+++ b/sys/shell/commands/sc_loramac.c
@@ -64,7 +64,7 @@ static void _loramac_set_usage(void)
 static void _loramac_get_usage(void)
 {
     puts("Usage: loramac get <deveui|appeui|appkey|appskey|nwkskey|devaddr|"
-         "class|dr|adr|public|netid|tx_power|rx2_freq|rx2_dr|ul_cnt>");
+         "class|dr|adr|public|netid|tx_power|rx2_freq|rx2_dr|ul_cnt|ch_mask>");
 }
 
 int _loramac_handler(int argc, char **argv)
@@ -166,6 +166,15 @@ int _loramac_handler(int argc, char **argv)
         else if (strcmp("ul_cnt", argv[2]) == 0) {
             printf("Uplink Counter: %"PRIu32"\n", semtech_loramac_get_uplink_counter(&loramac));
         }
+        else if (strcmp("ch_mask", argv[2]) == 0) {
+            uint16_t mask[LORAMAC_CHANNELS_MASK_LEN] = { 0 };
+            semtech_loramac_get_channels_mask(&loramac, mask);
+            printf("Channels mask: ");
+            for (size_t i = 0; i < LORAMAC_CHANNELS_MASK_LEN; i++) {
+                printf("%04x", mask[i]);
+            }
+            printf("\n");
+        }
         else {
             _loramac_get_usage();
             return 1;
@@ -353,10 +362,10 @@ int _loramac_handler(int argc, char **argv)
                 puts("Example (sets channels 0-3): loramac set ch_mask 000F00000000000000000000");
                 return 1;
             }
-            uint16_t mask[LORAMAC_CHANNELS_MASK_MAX_LEN] = { 0 };
-            uint8_t tmp[LORAMAC_CHANNELS_MASK_MAX_LEN*2];
+            uint16_t mask[LORAMAC_CHANNELS_MASK_LEN] = { 0 };
+            uint8_t tmp[LORAMAC_CHANNELS_MASK_LEN*2];
             fmt_hex_bytes(tmp, argv[3]);
-            for (size_t i = 0, j = 0; i < LORAMAC_CHANNELS_MASK_MAX_LEN; i++, j+=2) {
+            for (size_t i = 0, j = 0; i < LORAMAC_CHANNELS_MASK_LEN; i++, j+=2) {
                 /* copy over to span a 16-bit -wide unsigned integer */
                 mask[i] |= tmp[j] << 8;
                 mask[i] |= tmp[j+1];