diff --git a/lib/protocol/networks.js b/lib/protocol/networks.js
index 17d45c1a..518d8fcd 100644
--- a/lib/protocol/networks.js
+++ b/lib/protocol/networks.js
@@ -355,7 +355,7 @@ main.deployments = {
  */
 
 main.keyPrefix = {
-  privkey: 128,
+  privkey: 0x80,
   xpubkey: 0x0488b21e,
   xprivkey: 0x0488ade4,
   xprivkey58: 'xprv',
@@ -369,10 +369,10 @@ main.keyPrefix = {
  */
 
 main.addressPrefix = {
-  pubkeyhash: 0,
-  scripthash: 5,
-  witnesspubkeyhash: 6,
-  witnessscripthash: 10
+  pubkeyhash: 0x00,
+  scripthash: 0x05,
+  witnesspubkeyhash: 0x06,
+  witnessscripthash: 0x0a
 };
 
 /**
@@ -566,7 +566,7 @@ testnet.deployments = {
 };
 
 testnet.keyPrefix = {
-  privkey: 239,
+  privkey: 0xef,
   xpubkey: 0x043587cf,
   xprivkey: 0x04358394,
   xprivkey58: 'tprv',
@@ -575,10 +575,10 @@ testnet.keyPrefix = {
 };
 
 testnet.addressPrefix = {
-  pubkeyhash: 111,
-  scripthash: 196,
-  witnesspubkeyhash: 3,
-  witnessscripthash: 40
+  pubkeyhash: 0x6f,
+  scripthash: 0xc4,
+  witnesspubkeyhash: 0x03,
+  witnessscripthash: 0x28
 };
 
 testnet.requireStandard = false;
@@ -708,7 +708,7 @@ regtest.deployments = {
 };
 
 regtest.keyPrefix = {
-  privkey: 239,
+  privkey: 0xef,
   xpubkey: 0x043587cf,
   xprivkey: 0x04358394,
   xprivkey58: 'tprv',
@@ -717,10 +717,10 @@ regtest.keyPrefix = {
 };
 
 regtest.addressPrefix = {
-  pubkeyhash: 111,
-  scripthash: 196,
-  witnesspubkeyhash: 3,
-  witnessscripthash: 40
+  pubkeyhash: 0x6f,
+  scripthash: 0xc4,
+  witnesspubkeyhash: 0x03,
+  witnessscripthash: 0x28
 };
 
 regtest.requireStandard = false;
@@ -824,7 +824,7 @@ segnet3.minerWindow = 144;
 segnet3.deployments = {};
 
 segnet3.keyPrefix = {
-  privkey: 158,
+  privkey: 0x9e,
   xpubkey: 0x053587cf,
   xprivkey: 0x05358394,
   xprivkey58: '2791',
@@ -833,10 +833,10 @@ segnet3.keyPrefix = {
 };
 
 segnet3.addressPrefix = {
-  pubkeyhash: 30,
-  scripthash: 50,
-  witnesspubkeyhash: 3,
-  witnessscripthash: 40
+  pubkeyhash: 0x1e,
+  scripthash: 0x32,
+  witnesspubkeyhash: 0x03,
+  witnessscripthash: 0x28
 };
 
 segnet3.requireStandard = false;
@@ -959,7 +959,7 @@ segnet4.deployments = {
 };
 
 segnet4.keyPrefix = {
-  privkey: 158,
+  privkey: 0x9e,
   xpubkey: 0x053587cf,
   xprivkey: 0x05358394,
   xprivkey58: '2791',
@@ -968,10 +968,10 @@ segnet4.keyPrefix = {
 };
 
 segnet4.addressPrefix = {
-  pubkeyhash: 30,
-  scripthash: 50,
-  witnesspubkeyhash: 3,
-  witnessscripthash: 40
+  pubkeyhash: 0x1e,
+  scripthash: 0x32,
+  witnesspubkeyhash: 0x03,
+  witnessscripthash: 0x28
 };
 
 segnet4.requireStandard = false;
@@ -1102,7 +1102,7 @@ simnet.deployments = {
 };
 
 simnet.keyPrefix = {
-  privkey: 100,
+  privkey: 0x64,
   xpubkey: 0x0420bd3a,
   xprivkey: 0x0420b900,
   xprivkey58: 'sprv',
@@ -1111,10 +1111,10 @@ simnet.keyPrefix = {
 };
 
 simnet.addressPrefix = {
-  pubkeyhash: 63,
-  scripthash: 123,
-  witnesspubkeyhash: 3,
-  witnessscripthash: 40
+  pubkeyhash: 0x3f,
+  scripthash: 0x7b,
+  witnesspubkeyhash: 0x03,
+  witnessscripthash: 0x28
 };
 
 simnet.requireStandard = false;