diff --git a/libc/src/network/ntohl.cpp b/libc/src/network/ntohl.cpp
--- a/libc/src/network/ntohl.cpp
+++ b/libc/src/network/ntohl.cpp
@@ -13,7 +13,7 @@
 namespace __llvm_libc {
 
 LLVM_LIBC_FUNCTION(uint32_t, ntohl, (uint32_t netlong)) {
-  return Endian::to_big_endian(netlong);
+  return Endian::IS_LITTLE ? __builtin_bswap32(netlong) : netlong;
 }
 
 } // namespace __llvm_libc
diff --git a/libc/src/network/ntohs.cpp b/libc/src/network/ntohs.cpp
--- a/libc/src/network/ntohs.cpp
+++ b/libc/src/network/ntohs.cpp
@@ -13,7 +13,7 @@
 namespace __llvm_libc {
 
 LLVM_LIBC_FUNCTION(uint16_t, ntohs, (uint16_t netshort)) {
-  return Endian::to_big_endian(netshort);
+  return Endian::IS_LITTLE ? __builtin_bswap16(netshort) : netshort;
 }
 
 } // namespace __llvm_libc
diff --git a/libc/test/src/network/CMakeLists.txt b/libc/test/src/network/CMakeLists.txt
--- a/libc/test/src/network/CMakeLists.txt
+++ b/libc/test/src/network/CMakeLists.txt
@@ -10,6 +10,7 @@
     20
   DEPENDS
     libc.src.network.htonl
+    libc.src.network.ntohl
 )
 
 add_libc_unittest(
@@ -22,6 +23,7 @@
     20
   DEPENDS
     libc.src.network.htons
+    libc.src.network.ntohs
 )
 
 add_libc_unittest(
@@ -33,6 +35,7 @@
   CXX_STANDARD
     20
   DEPENDS
+    libc.src.network.htonl
     libc.src.network.ntohl
 )
 
@@ -45,5 +48,6 @@
   CXX_STANDARD
     20
   DEPENDS
+    libc.src.network.htons
     libc.src.network.ntohs
 )
diff --git a/libc/test/src/network/htonl_test.cpp b/libc/test/src/network/htonl_test.cpp
--- a/libc/test/src/network/htonl_test.cpp
+++ b/libc/test/src/network/htonl_test.cpp
@@ -8,6 +8,7 @@
 
 #include "src/__support/endian.h"
 #include "src/network/htonl.h"
+#include "src/network/ntohl.h"
 #include "test/UnitTest/Test.h"
 
 TEST(LlvmLibcHtonl, SmokeTest) {
@@ -20,3 +21,8 @@
   EXPECT_EQ(__llvm_libc::htonl(original), original);
 #endif
 }
+
+TEST(LlvmLibcHtonl, CompleteTest) {
+  uint32_t original = 0x01234567;
+  EXPECT_EQ(__llvm_libc::htonl(__llvm_libc::ntohl(original)), original);
+}
diff --git a/libc/test/src/network/htons_test.cpp b/libc/test/src/network/htons_test.cpp
--- a/libc/test/src/network/htons_test.cpp
+++ b/libc/test/src/network/htons_test.cpp
@@ -8,6 +8,7 @@
 
 #include "src/__support/endian.h"
 #include "src/network/htons.h"
+#include "src/network/ntohs.h"
 #include "test/UnitTest/Test.h"
 
 TEST(LlvmLibcHtons, SmokeTest) {
@@ -20,3 +21,8 @@
   EXPECT_EQ(__llvm_libc::htons(original), original);
 #endif
 }
+
+TEST(LlvmLibcHtons, CompleteTest) {
+  uint16_t original = 0x0123;
+  EXPECT_EQ(__llvm_libc::htons(__llvm_libc::ntohs(original)), original);
+}
diff --git a/libc/test/src/network/ntohl_test.cpp b/libc/test/src/network/ntohl_test.cpp
--- a/libc/test/src/network/ntohl_test.cpp
+++ b/libc/test/src/network/ntohl_test.cpp
@@ -7,6 +7,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "src/__support/endian.h"
+#include "src/network/htonl.h"
 #include "src/network/ntohl.h"
 #include "test/UnitTest/Test.h"
 
@@ -20,3 +21,8 @@
   EXPECT_EQ(__llvm_libc::ntohl(original), original);
 #endif
 }
+
+TEST(LlvmLibcNtohl, CompleteTest) {
+  uint32_t original = 0x01234567;
+  EXPECT_EQ(__llvm_libc::ntohl(__llvm_libc::htonl(original)), original);
+}
diff --git a/libc/test/src/network/ntohs_test.cpp b/libc/test/src/network/ntohs_test.cpp
--- a/libc/test/src/network/ntohs_test.cpp
+++ b/libc/test/src/network/ntohs_test.cpp
@@ -7,6 +7,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "src/__support/endian.h"
+#include "src/network/htons.h"
 #include "src/network/ntohs.h"
 #include "test/UnitTest/Test.h"
 
@@ -20,3 +21,8 @@
   EXPECT_EQ(__llvm_libc::ntohs(original), original);
 #endif
 }
+
+TEST(LlvmLibcNtohs, CompleteTest) {
+  uint16_t original = 0x0123;
+  EXPECT_EQ(__llvm_libc::ntohs(__llvm_libc::htons(original)), original);
+}