diff --git a/openair3/UTILS/conversions.h b/openair3/UTILS/conversions.h
index 588edb1461..a292630d8e 100644
--- a/openair3/UTILS/conversions.h
+++ b/openair3/UTILS/conversions.h
@@ -285,19 +285,6 @@ do {                                    \
     BUFFER_TO_UINT32((aSN)->buf, x);               \
   } while (0)
 
-#define BIT_STRING_TO_INT32(aSN, x)     \
-do {                                    \
-    DevCheck((aSN)->bits_unused == 0, (aSN)->bits_unused, 0, 0);    \
-    OCTET_STRING_TO_INT32(aSN, x);      \
-} while(0)
-
-#define BIT_STRING_TO_CELL_IDENTITY(aSN, vALUE)                     \
-do {                                                                \
-    DevCheck((aSN)->bits_unused == 4, (aSN)->bits_unused, 4, 0);    \
-    vALUE = ((aSN)->buf[0] << 20) | ((aSN)->buf[1] << 12) |         \
-        ((aSN)->buf[2] << 4) | (aSN)->buf[3];                       \
-} while(0)
-
 #define BIT_STRING_TO_NR_CELL_IDENTITY(aSN, vALUE)                     \
 do {                                                                   \
     DevCheck((aSN)->bits_unused == 4, (aSN)->bits_unused, 4, 0);       \
@@ -315,14 +302,6 @@ do {                                                                   \
 #define MCC_MNC_DIGIT(vALUE) \
     ((vALUE) % 10)
 
-#define MCC_TO_BUFFER(mCC, bUFFER)      \
-do {                                    \
-    DevAssert(bUFFER != NULL);          \
-    (bUFFER)[0] = MCC_HUNDREDS(mCC);    \
-    (bUFFER)[1] = MCC_MNC_DECIMAL(mCC); \
-    (bUFFER)[2] = MCC_MNC_DIGIT(mCC);   \
-} while(0)
-
 #define MCC_MNC_TO_PLMNID(mCC, mNC, mNCdIGITlENGTH, oCTETsTRING)               \
 do {                                                                           \
     (oCTETsTRING)->buf = calloc(3, sizeof(uint8_t));                           \
@@ -459,14 +438,6 @@ do {                                                    \
     (bITsTRING)->bits_unused = 4;                       \
 } while(0)
 
-/*
-#define INT16_TO_3_BYTE_BUFFER(x, buf) \
-do {                            \
-	(buf)[0] = 0x00; \
-    (buf)[1] = (x) >> 8;        \
-    (buf)[2] = (x);             \
-} while(0)
-*/
 
 #define NR_FIVEGS_TAC_ID_TO_BIT_STRING(x, aSN)      \
 do {                                                    \
@@ -497,20 +468,6 @@ do {                                                    \
     (bITsTRING)->bits_unused = 0;                       \
 } while(0)
 
-#define BIT_STRING_TO_MaskedIMEISV(bITsTRING, mACRO)    \
-do {                                                                    \
-    DevCheck((bITsTRING)->size == 8, (bITsTRING)->size, 8, 0);          \
-    DevCheck((bITsTRING)->bits_unused == 0, (bITsTRING)->bits_unused, 0, 0); \
-    mACRO = ((bITsTRING)->buf[0] << 56) +                               \
-            ((bITsTRING)->buf[1] << 48) +                               \
-            ((bITsTRING)->buf[2] << 40) +                               \
-            ((bITsTRING)->buf[3] << 32) +                               \
-            ((bITsTRING)->buf[4] << 24) +                               \
-            ((bITsTRING)->buf[5] << 16) +                               \
-            ((bITsTRING)->buf[6] << 8) +                                \
-            ((bITsTRING)->buf[7]);                                      \
-} while (0)
-
 /* TS 36.413 v10.9.0 section 9.2.1.37:
  * Macro eNB ID:
  * Equal to the 20 leftmost bits of the Cell