diff --git a/src/Network/NetworkFactory.php b/src/Network/NetworkFactory.php
index 0ad75d60e..2809001d6 100644
--- a/src/Network/NetworkFactory.php
+++ b/src/Network/NetworkFactory.php
@@ -32,76 +32,4 @@ public static function bitcoinRegtest(): NetworkInterface
     {
         return new Networks\BitcoinRegtest();
     }
-
-    /**
-     * @return NetworkInterface
-     */
-    public static function litecoin(): NetworkInterface
-    {
-        return new Networks\Litecoin();
-    }
-
-    /**
-     * @return Networks\LitecoinTestnet
-     */
-    public static function litecoinTestnet(): NetworkInterface
-    {
-        return new Networks\LitecoinTestnet();
-    }
-
-    /**
-     * @return Networks\Viacoin
-     */
-    public static function viacoin(): NetworkInterface
-    {
-        return new Networks\Viacoin();
-    }
-
-    /**
-     * @return Networks\ViacoinTestnet
-     */
-    public static function viacoinTestnet(): NetworkInterface
-    {
-        return new Networks\ViacoinTestnet();
-    }
-
-    /**
-     * @return Networks\Dogecoin
-     */
-    public static function dogecoin(): NetworkInterface
-    {
-        return new Networks\Dogecoin();
-    }
-
-    /**
-     * @return Networks\DogecoinTestnet
-     */
-    public static function dogecoinTestnet(): NetworkInterface
-    {
-        return new Networks\DogecoinTestnet();
-    }
-
-    /**
-     * @return Networks\Dash
-     */
-    public static function dash(): NetworkInterface
-    {
-        return new Networks\Dash();
-    }
-
-    /**
-     * @return Networks\DashTestnet
-     */
-    public static function dashTestnet(): NetworkInterface
-    {
-        return new Networks\DashTestnet();
-    }
-
-    /**
-     * @return NetworkInterface
-     */
-    public static function zcash()
-    {
-        return new Networks\Zcash();
-    }
 }
diff --git a/src/Network/Networks/Dash.php b/src/Network/Networks/Dash.php
deleted file mode 100644
index 145a0a118..000000000
--- a/src/Network/Networks/Dash.php
+++ /dev/null
@@ -1,50 +0,0 @@
-<?php
-
-namespace BitWasp\Bitcoin\Network\Networks;
-
-use BitWasp\Bitcoin\Network\Network;
-use BitWasp\Bitcoin\Script\ScriptType;
-
-class Dash extends Network
-{
-    /**
-     * {@inheritdoc}
-     * @see Network::$base58PrefixMap
-     */
-    protected $base58PrefixMap = [
-        self::BASE58_ADDRESS_P2PKH => "4c",
-        self::BASE58_ADDRESS_P2SH => "10",
-        self::BASE58_WIF => "cc",
-
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$bip32PrefixMap
-     */
-    protected $bip32PrefixMap = [
-        self::BIP32_PREFIX_XPUB => "0488b21e",
-        self::BIP32_PREFIX_XPRV => "0488ade4",
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$bip32ScriptTypeMap
-     */
-    protected $bip32ScriptTypeMap = [
-        self::BIP32_PREFIX_XPUB => ScriptType::P2PKH,
-        self::BIP32_PREFIX_XPRV => ScriptType::P2PKH,
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$signedMessagePrefix
-     */
-    protected $signedMessagePrefix = "DarkCoin Signed Message";
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$p2pMagic
-     */
-    protected $p2pMagic = "bd6b0cbf";
-}
diff --git a/src/Network/Networks/DashTestnet.php b/src/Network/Networks/DashTestnet.php
deleted file mode 100644
index 90f51ea9f..000000000
--- a/src/Network/Networks/DashTestnet.php
+++ /dev/null
@@ -1,49 +0,0 @@
-<?php
-
-namespace BitWasp\Bitcoin\Network\Networks;
-
-use BitWasp\Bitcoin\Network\Network;
-use BitWasp\Bitcoin\Script\ScriptType;
-
-class DashTestnet extends Network
-{
-    /**
-     * {@inheritdoc}
-     * @see Network::$base58PrefixMap
-     */
-    protected $base58PrefixMap = [
-        self::BASE58_ADDRESS_P2PKH => "8b",
-        self::BASE58_ADDRESS_P2SH => "13",
-        self::BASE58_WIF => "ef",
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$bip32PrefixMap
-     */
-    protected $bip32PrefixMap = [
-        self::BIP32_PREFIX_XPUB => "043587cf",
-        self::BIP32_PREFIX_XPRV => "04358394",
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$bip32ScriptTypeMap
-     */
-    protected $bip32ScriptTypeMap = [
-        self::BIP32_PREFIX_XPUB => ScriptType::P2PKH,
-        self::BIP32_PREFIX_XPRV => ScriptType::P2PKH,
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$signedMessagePrefix
-     */
-    protected $signedMessagePrefix = "DarkCoin Signed Message";
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$p2pMagic
-     */
-    protected $p2pMagic = "ffcae2ce";
-}
diff --git a/src/Network/Networks/Dogecoin.php b/src/Network/Networks/Dogecoin.php
deleted file mode 100644
index 859ff33c7..000000000
--- a/src/Network/Networks/Dogecoin.php
+++ /dev/null
@@ -1,50 +0,0 @@
-<?php
-
-namespace BitWasp\Bitcoin\Network\Networks;
-
-use BitWasp\Bitcoin\Network\Network;
-use BitWasp\Bitcoin\Script\ScriptType;
-
-class Dogecoin extends Network
-{
-    /**
-     * {@inheritdoc}
-     * @see Network::$base58PrefixMap
-     */
-    protected $base58PrefixMap = [
-        self::BASE58_ADDRESS_P2PKH => "1e",
-        self::BASE58_ADDRESS_P2SH => "16",
-        self::BASE58_WIF => "9e",
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$bip32PrefixMap
-     */
-    protected $bip32PrefixMap = [
-        self::BIP32_PREFIX_XPUB => "02facafd",
-        self::BIP32_PREFIX_XPRV => "02fac398",
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$bip32ScriptTypeMap
-     */
-    protected $bip32ScriptTypeMap = [
-        self::BIP32_PREFIX_XPUB => ScriptType::P2PKH,
-        self::BIP32_PREFIX_XPRV => ScriptType::P2PKH,
-    ];
-
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$signedMessagePrefix
-     */
-    protected $signedMessagePrefix = "Dogecoin Signed Message";
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$p2pMagic
-     */
-    protected $p2pMagic = "c0c0c0c0";
-}
diff --git a/src/Network/Networks/DogecoinTestnet.php b/src/Network/Networks/DogecoinTestnet.php
deleted file mode 100644
index 6dc6dbadd..000000000
--- a/src/Network/Networks/DogecoinTestnet.php
+++ /dev/null
@@ -1,49 +0,0 @@
-<?php
-
-namespace BitWasp\Bitcoin\Network\Networks;
-
-use BitWasp\Bitcoin\Network\Network;
-use BitWasp\Bitcoin\Script\ScriptType;
-
-class DogecoinTestnet extends Network
-{
-    /**
-     * {@inheritdoc}
-     * @see Network::$base58PrefixMap
-     */
-    protected $base58PrefixMap = [
-        self::BASE58_ADDRESS_P2PKH => "71",
-        self::BASE58_ADDRESS_P2SH => "c4",
-        self::BASE58_WIF => "f1",
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$bip32PrefixMap
-     */
-    protected $bip32PrefixMap = [
-        self::BIP32_PREFIX_XPUB => "043587cf",
-        self::BIP32_PREFIX_XPRV => "04358394",
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$bip32ScriptTypeMap
-     */
-    protected $bip32ScriptTypeMap = [
-        self::BIP32_PREFIX_XPUB => ScriptType::P2PKH,
-        self::BIP32_PREFIX_XPRV => ScriptType::P2PKH,
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$signedMessagePrefix
-     */
-    protected $signedMessagePrefix = "Dogecoin Signed Message";
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$p2pMagic
-     */
-    protected $p2pMagic = "dcb7c1fc";
-}
diff --git a/src/Network/Networks/Litecoin.php b/src/Network/Networks/Litecoin.php
deleted file mode 100644
index 60c8046e9..000000000
--- a/src/Network/Networks/Litecoin.php
+++ /dev/null
@@ -1,57 +0,0 @@
-<?php
-
-namespace BitWasp\Bitcoin\Network\Networks;
-
-use BitWasp\Bitcoin\Network\Network;
-use BitWasp\Bitcoin\Script\ScriptType;
-
-class Litecoin extends Network
-{
-    /**
-     * {@inheritdoc}
-     * @see Network::$base58PrefixMap
-     */
-    protected $base58PrefixMap = [
-        self::BASE58_ADDRESS_P2PKH => "30",
-        self::BASE58_ADDRESS_P2SH => "32",
-        self::BASE58_WIF => "b0",
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$bech32PrefixMap
-     */
-    protected $bech32PrefixMap = [
-        self::BECH32_PREFIX_SEGWIT => "ltc",
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$bip32PrefixMap
-     */
-    protected $bip32PrefixMap = [
-        self::BIP32_PREFIX_XPUB => "019da462",
-        self::BIP32_PREFIX_XPRV => "019d9cfe",
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$bip32ScriptTypeMap
-     */
-    protected $bip32ScriptTypeMap = [
-        self::BIP32_PREFIX_XPUB => ScriptType::P2PKH,
-        self::BIP32_PREFIX_XPRV => ScriptType::P2PKH,
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$signedMessagePrefix
-     */
-    protected $signedMessagePrefix = "Litecoin Signed Message";
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$p2pMagic
-     */
-    protected $p2pMagic = "dbb6c0fb";
-}
diff --git a/src/Network/Networks/LitecoinTestnet.php b/src/Network/Networks/LitecoinTestnet.php
deleted file mode 100644
index ae7b72538..000000000
--- a/src/Network/Networks/LitecoinTestnet.php
+++ /dev/null
@@ -1,57 +0,0 @@
-<?php
-
-namespace BitWasp\Bitcoin\Network\Networks;
-
-use BitWasp\Bitcoin\Network\Network;
-use BitWasp\Bitcoin\Script\ScriptType;
-
-class LitecoinTestnet extends Network
-{
-    /**
-     * {@inheritdoc}
-     * @see Network::$base58PrefixMap
-     */
-    protected $base58PrefixMap = [
-        self::BASE58_ADDRESS_P2PKH => "6f",
-        self::BASE58_ADDRESS_P2SH => "3a",
-        self::BASE58_WIF => "ef",
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$bip32PrefixMap
-     */
-    protected $bip32PrefixMap = [
-        self::BIP32_PREFIX_XPUB => "043587cf",
-        self::BIP32_PREFIX_XPRV => "04358394",
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$bip32ScriptTypeMap
-     */
-    protected $bip32ScriptTypeMap = [
-        self::BIP32_PREFIX_XPUB => ScriptType::P2PKH,
-        self::BIP32_PREFIX_XPRV => ScriptType::P2PKH,
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$bech32PrefixMap
-     */
-    protected $bech32PrefixMap = [
-        self::BECH32_PREFIX_SEGWIT => "tltc",
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$signedMessagePrefix
-     */
-    protected $signedMessagePrefix = "Litecoin Signed Message";
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$p2pMagic
-     */
-    protected $p2pMagic = "f1c8d2fd";
-}
diff --git a/src/Network/Networks/Viacoin.php b/src/Network/Networks/Viacoin.php
deleted file mode 100644
index 29c7847f7..000000000
--- a/src/Network/Networks/Viacoin.php
+++ /dev/null
@@ -1,53 +0,0 @@
-<?php
-
-namespace BitWasp\Bitcoin\Network\Networks;
-
-use BitWasp\Bitcoin\Network\Network;
-use BitWasp\Bitcoin\Script\ScriptType;
-
-class Viacoin extends Network
-{
-    /**
-     * @var array map of base58 address type to byte
-     */
-    protected $base58PrefixMap = [
-        self::BASE58_ADDRESS_P2PKH => "47",
-        self::BASE58_ADDRESS_P2SH => "21",
-        self::BASE58_WIF => "c7",
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$bech32PrefixMap
-     */
-    protected $bech32PrefixMap = [
-        self::BECH32_PREFIX_SEGWIT => "via",
-    ];
-
-    /**
-     * @var array map of bip32 type to bytes
-     */
-    protected $bip32PrefixMap = [
-        self::BIP32_PREFIX_XPUB => "0488b21e",
-        self::BIP32_PREFIX_XPRV => "0488ade4",
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$bip32ScriptTypeMap
-     */
-    protected $bip32ScriptTypeMap = [
-        self::BIP32_PREFIX_XPUB => ScriptType::P2PKH,
-        self::BIP32_PREFIX_XPRV => ScriptType::P2PKH,
-    ];
-
-    /**
-     * @var string - message prefix for bitcoin signed messages
-     */
-    protected $signedMessagePrefix = "Viacoin Signed Message";
-
-    /**
-     * @var string - 4 bytes for p2p magic
-     */
-    protected $p2pMagic = "cbc6680f";
-}
diff --git a/src/Network/Networks/ViacoinTestnet.php b/src/Network/Networks/ViacoinTestnet.php
deleted file mode 100644
index ac0f16fe1..000000000
--- a/src/Network/Networks/ViacoinTestnet.php
+++ /dev/null
@@ -1,53 +0,0 @@
-<?php
-
-namespace BitWasp\Bitcoin\Network\Networks;
-
-use BitWasp\Bitcoin\Network\Network;
-use BitWasp\Bitcoin\Script\ScriptType;
-
-class ViacoinTestnet extends Network
-{
-    /**
-     * @var array map of base58 address type to byte
-     */
-    protected $base58PrefixMap = [
-        self::BASE58_ADDRESS_P2PKH => "7f",
-        self::BASE58_ADDRESS_P2SH => "c4",
-        self::BASE58_WIF => "ff",
-    ];
-
-    /**
-     * @var array map of bip32 type to bytes
-     */
-    protected $bip32PrefixMap = [
-        self::BIP32_PREFIX_XPUB => "043587cf",
-        self::BIP32_PREFIX_XPRV => "04358394",
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$bip32ScriptTypeMap
-     */
-    protected $bip32ScriptTypeMap = [
-        self::BIP32_PREFIX_XPUB => ScriptType::P2PKH,
-        self::BIP32_PREFIX_XPRV => ScriptType::P2PKH,
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$bech32PrefixMap
-     */
-    protected $bech32PrefixMap = [
-        self::BECH32_PREFIX_SEGWIT => "tvia",
-    ];
-
-    /**
-     * @var string - message prefix for bitcoin signed messages
-     */
-    protected $signedMessagePrefix = "Viacoin Signed Message";
-
-    /**
-     * @var string - 4 bytes for p2p magic
-     */
-    protected $p2pMagic = "92efc5a9";
-}
diff --git a/src/Network/Networks/Zcash.php b/src/Network/Networks/Zcash.php
deleted file mode 100644
index ccceaf49c..000000000
--- a/src/Network/Networks/Zcash.php
+++ /dev/null
@@ -1,52 +0,0 @@
-<?php
-
-namespace BitWasp\Bitcoin\Network\Networks;
-
-use BitWasp\Bitcoin\Network\Network;
-use BitWasp\Bitcoin\Script\ScriptType;
-
-class Zcash extends Network
-{
-    /**
-     * {@inheritdoc}
-     * @see Network::$base58PrefixMap
-     */
-    protected $base58PrefixMap = [
-        // https://github.com/zcash/zcash/blob/master/src/chainparams.cpp#L139-L144
-        self::BASE58_ADDRESS_P2PKH => "1cb8",
-        self::BASE58_ADDRESS_P2SH => "1cbd",
-        self::BASE58_WIF => "80",
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$bip32PrefixMap
-     */
-    protected $bip32PrefixMap = [
-        // https://github.com/zcash/zcash/blob/master/src/chainparams.cpp#L146-L147
-        self::BIP32_PREFIX_XPUB => "0488b21e",
-        self::BIP32_PREFIX_XPRV => "0488ade4",
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$bip32ScriptTypeMap
-     */
-    protected $bip32ScriptTypeMap = [
-        self::BIP32_PREFIX_XPUB => ScriptType::P2PKH,
-        self::BIP32_PREFIX_XPRV => ScriptType::P2PKH,
-    ];
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$signedMessagePrefix
-     */
-    protected $signedMessagePrefix = "Zcash Signed Message";
-
-    /**
-     * {@inheritdoc}
-     * @see Network::$p2pMagic
-     */
-    // https://github.com/zcash/zcash/blob/master/src/chainparams.cpp#L111-L114
-    protected $p2pMagic = "6427e924";
-}
diff --git a/tests/Address/AddressTest.php b/tests/Address/AddressTest.php
index c88e6d973..00dd81b2d 100644
--- a/tests/Address/AddressTest.php
+++ b/tests/Address/AddressTest.php
@@ -31,8 +31,6 @@ public function getNetwork(string $network)
                 return NetworkFactory::bitcoin();
             case 'tbtc':
                 return NetworkFactory::bitcoinTestnet();
-            case 'zec':
-                return NetworkFactory::zcash();
             default:
                 throw new \RuntimeException("Invalid test fixture, unknown network");
         }
diff --git a/tests/BitcoinTest.php b/tests/BitcoinTest.php
index d71e86d3c..f5a3b1857 100644
--- a/tests/BitcoinTest.php
+++ b/tests/BitcoinTest.php
@@ -26,7 +26,7 @@ public function testGetNetwork()
     {
         $default = Bitcoin::getDefaultNetwork();
         $bitcoin = NetworkFactory::bitcoin();
-        $viacoin = NetworkFactory::viacoin();
+        $viacoin = NetworkFactory::bitcoinTestnet();
 
         $this->assertEquals($default, $bitcoin);
         $this->assertEquals($default, Bitcoin::getNetwork());
diff --git a/tests/Data/addresstests.json b/tests/Data/addresstests.json
index 9af95a3d6..d5c7723b9 100644
--- a/tests/Data/addresstests.json
+++ b/tests/Data/addresstests.json
@@ -131,12 +131,6 @@
             "hash": "33b5ea4cee854383bb1ef23223af8544351dc148",
             "network": "btc",
             "address": "15iRPUaoGPkxAdsR9Pg7amifytRj7h1nJf"
-        },
-        {
-            "publickey": "03005d784682e7ae5933d39a8ebf2758f610aefe238b2f0ea06a26c20fa9d4733e",
-            "hash": "e1c34e05292274d459949e910b758b8d104ede1b",
-            "network": "zec",
-            "address": "t1eTL1WZWMFj5DTsingVqcPsfFzUSzPEEiM"
         }
     ]
 }
diff --git a/tests/Network/NetworkFactoryTest.php b/tests/Network/NetworkFactoryTest.php
index ca72fc560..e21d3c6c7 100644
--- a/tests/Network/NetworkFactoryTest.php
+++ b/tests/Network/NetworkFactoryTest.php
@@ -16,14 +16,6 @@ public function getFactoryMethodAndClass(): array
             ['bitcoin', Networks\Bitcoin::class],
             ['bitcoinTestnet', Networks\BitcoinTestnet::class],
             ['bitcoinRegtest', Networks\BitcoinRegtest::class],
-            ['dash', Networks\Dash::class],
-            ['dashTestnet', Networks\DashTestnet::class],
-            ['dogecoin', Networks\Dogecoin::class],
-            ['dogecoinTestnet', Networks\DogecoinTestnet::class],
-            ['litecoin', Networks\Litecoin::class],
-            ['litecoinTestnet', Networks\LitecoinTestnet::class],
-            ['viacoin', Networks\Viacoin::class],
-            ['viacoinTestnet', Networks\ViacoinTestnet::class],
         ];
     }
 
diff --git a/tests/Network/NetworkTest.php b/tests/Network/NetworkTest.php
index dc6d98e08..629a7273e 100644
--- a/tests/Network/NetworkTest.php
+++ b/tests/Network/NetworkTest.php
@@ -23,27 +23,7 @@ public function testFactoryPresets()
         $this->assertEquals('2Mwx4ckFK9pLBeknxCZt17tajwBEQXxNaWV', $p2sh->getAddress(NetworkFactory::bitcoinTestnet()));
         $this->assertEquals('mg9fuhDDAbD673KswdNyyWgaX8zDxJT8QY', $p2pk->getAddress(NetworkFactory::bitcoinTestnet()));
 
-        $this->assertEquals('MCbzrtjFVUgGFUSJdKFUKaqt3Xcgpi6Csx', $p2sh->getAddress(NetworkFactory::litecoin()));
-        $this->assertEquals('LKrfsrS4SE1tajYRQCPuRcY1sMkoFf1BN3', $p2pk->getAddress(NetworkFactory::litecoin()));
-
-        $this->assertEquals('EMrk83fMRQoNM74qDBb45TDWLxEehWXA7u', $p2sh->getAddress(NetworkFactory::viacoin()));
-        $this->assertEquals('VadYXMHgmNg3PhkQxr4EaVo7LxgVZvhAdc', $p2pk->getAddress(NetworkFactory::viacoin()));
-
-        $this->assertEquals('2Mwx4ckFK9pLBeknxCZt17tajwBEQXxNaWV', $p2sh->getAddress(NetworkFactory::viacoinTestnet()));
-        $this->assertEquals('t7ZKfRypXUd7ByZGLLi5jX3AbD7KQvDj4a', $p2pk->getAddress(NetworkFactory::viacoinTestnet()));
-
-        $this->assertEquals('9w97HrPBcRhjMLXswZvYk5DrRQQGvT2UeH', $p2sh->getAddress(NetworkFactory::dogecoin()));
-        $this->assertEquals('D5mp9u4seyg7rw2rxeQAhMdrYH7pPs5gNu', $p2pk->getAddress(NetworkFactory::dogecoin()));
-
-        $this->assertEquals('2Mwx4ckFK9pLBeknxCZt17tajwBEQXxNaWV', $p2sh->getAddress(NetworkFactory::dogecoinTestnet()));
-        $this->assertEquals('nUpssuonax8qjuc3zU3cwmE9n9W7QXJjgW', $p2pk->getAddress(NetworkFactory::dogecoinTestnet()));
-
-        // Dash
-        $this->assertEquals('7X7VPCbTMLvUSjhMo3vdqKb8eNrccxgkJ1', $p2sh->getAddress(NetworkFactory::dash()));
-        $this->assertEquals('XbKZStn8KGzRUsSr5wiq18A3VUyD7pdKXX', $p2pk->getAddress(NetworkFactory::dash()));
-
-        // Dash testnet
-        $this->assertEquals('8j8JLXVKUtK6u37csJvbHhQVXtdSmwYhAb', $p2sh->getAddress(NetworkFactory::dashTestnet()));
-        $this->assertEquals('xwcZUjZH3eBd1BEJdNhuZ2Jc9GCduoV5cV', $p2pk->getAddress(NetworkFactory::dashTestnet()));
+        $this->assertEquals('2Mwx4ckFK9pLBeknxCZt17tajwBEQXxNaWV', $p2sh->getAddress(NetworkFactory::bitcoinRegtest()));
+        $this->assertEquals('mg9fuhDDAbD673KswdNyyWgaX8zDxJT8QY', $p2pk->getAddress(NetworkFactory::bitcoinRegtest()));
     }
 }
diff --git a/tests/Network/Networks/DashTest.php b/tests/Network/Networks/DashTest.php
deleted file mode 100644
index bc04e2edc..000000000
--- a/tests/Network/Networks/DashTest.php
+++ /dev/null
@@ -1,23 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace BitWasp\Bitcoin\Tests\Network\Networks;
-
-use BitWasp\Bitcoin\Network\Networks\Dash;
-use BitWasp\Bitcoin\Tests\AbstractTestCase;
-
-class DashTest extends AbstractTestCase
-{
-    public function testDashNetwork()
-    {
-        $network = new Dash();
-        $this->assertEquals('4c', $network->getAddressByte());
-        $this->assertEquals('10', $network->getP2shByte());
-        $this->assertEquals('cc', $network->getPrivByte());
-        $this->assertEquals('0488ade4', $network->getHDPrivByte());
-        $this->assertEquals('0488b21e', $network->getHDPubByte());
-        $this->assertEquals('bd6b0cbf', $network->getNetMagicBytes());
-        $this->assertEquals("DarkCoin Signed Message", $network->getSignedMessageMagic());
-    }
-}
diff --git a/tests/Network/Networks/DashTestnetTest.php b/tests/Network/Networks/DashTestnetTest.php
deleted file mode 100644
index ac0ae6854..000000000
--- a/tests/Network/Networks/DashTestnetTest.php
+++ /dev/null
@@ -1,23 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace BitWasp\Bitcoin\Tests\Network\Networks;
-
-use BitWasp\Bitcoin\Network\Networks\DashTestnet;
-use BitWasp\Bitcoin\Tests\AbstractTestCase;
-
-class DashTestnetTest extends AbstractTestCase
-{
-    public function testDashTestnetNetwork()
-    {
-        $network = new DashTestnet();
-        $this->assertEquals('8b', $network->getAddressByte());
-        $this->assertEquals('13', $network->getP2shByte());
-        $this->assertEquals('ef', $network->getPrivByte());
-        $this->assertEquals('04358394', $network->getHDPrivByte());
-        $this->assertEquals('043587cf', $network->getHDPubByte());
-        $this->assertEquals('ffcae2ce', $network->getNetMagicBytes());
-        $this->assertEquals("DarkCoin Signed Message", $network->getSignedMessageMagic());
-    }
-}
diff --git a/tests/Network/Networks/DogecoinTest.php b/tests/Network/Networks/DogecoinTest.php
deleted file mode 100644
index 98a18510d..000000000
--- a/tests/Network/Networks/DogecoinTest.php
+++ /dev/null
@@ -1,23 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace BitWasp\Bitcoin\Tests\Network\Networks;
-
-use BitWasp\Bitcoin\Network\Networks\Dogecoin;
-use BitWasp\Bitcoin\Tests\AbstractTestCase;
-
-class DogecoinTest extends AbstractTestCase
-{
-    public function testDogecoinNetwork()
-    {
-        $network = new Dogecoin();
-        $this->assertEquals('1e', $network->getAddressByte());
-        $this->assertEquals('16', $network->getP2shByte());
-        $this->assertEquals('9e', $network->getPrivByte());
-        $this->assertEquals('02fac398', $network->getHDPrivByte());
-        $this->assertEquals('02facafd', $network->getHDPubByte());
-        $this->assertEquals('c0c0c0c0', $network->getNetMagicBytes());
-        $this->assertEquals("Dogecoin Signed Message", $network->getSignedMessageMagic());
-    }
-}
diff --git a/tests/Network/Networks/DogecoinTestnetTest.php b/tests/Network/Networks/DogecoinTestnetTest.php
deleted file mode 100644
index 8b1a065ce..000000000
--- a/tests/Network/Networks/DogecoinTestnetTest.php
+++ /dev/null
@@ -1,23 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace BitWasp\Bitcoin\Tests\Network\Networks;
-
-use BitWasp\Bitcoin\Network\Networks\DogecoinTestnet;
-use BitWasp\Bitcoin\Tests\AbstractTestCase;
-
-class DogecoinTestnetTest extends AbstractTestCase
-{
-    public function testDogecoinTestnetNetwork()
-    {
-        $network = new DogecoinTestnet();
-        $this->assertEquals('71', $network->getAddressByte());
-        $this->assertEquals('c4', $network->getP2shByte());
-        $this->assertEquals('f1', $network->getPrivByte());
-        $this->assertEquals('04358394', $network->getHDPrivByte());
-        $this->assertEquals('043587cf', $network->getHDPubByte());
-        $this->assertEquals('dcb7c1fc', $network->getNetMagicBytes());
-        $this->assertEquals("Dogecoin Signed Message", $network->getSignedMessageMagic());
-    }
-}
diff --git a/tests/Network/Networks/LitecoinTest.php b/tests/Network/Networks/LitecoinTest.php
deleted file mode 100644
index d54599b6d..000000000
--- a/tests/Network/Networks/LitecoinTest.php
+++ /dev/null
@@ -1,24 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace BitWasp\Bitcoin\Tests\Network\Networks;
-
-use BitWasp\Bitcoin\Network\Networks\Litecoin;
-use BitWasp\Bitcoin\Tests\AbstractTestCase;
-
-class LitecoinTest extends AbstractTestCase
-{
-    public function testLitecoinNetwork()
-    {
-        $network = new Litecoin();
-        $this->assertEquals('30', $network->getAddressByte());
-        $this->assertEquals('32', $network->getP2shByte());
-        $this->assertEquals('b0', $network->getPrivByte());
-        $this->assertEquals('019d9cfe', $network->getHDPrivByte());
-        $this->assertEquals('019da462', $network->getHDPubByte());
-        $this->assertEquals('dbb6c0fb', $network->getNetMagicBytes());
-        $this->assertEquals('ltc', $network->getSegwitBech32Prefix());
-        $this->assertEquals("Litecoin Signed Message", $network->getSignedMessageMagic());
-    }
-}
diff --git a/tests/Network/Networks/LitecoinTestnetTest.php b/tests/Network/Networks/LitecoinTestnetTest.php
deleted file mode 100644
index ce991691a..000000000
--- a/tests/Network/Networks/LitecoinTestnetTest.php
+++ /dev/null
@@ -1,24 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace BitWasp\Bitcoin\Tests\Network\Networks;
-
-use BitWasp\Bitcoin\Network\Networks\LitecoinTestnet;
-use BitWasp\Bitcoin\Tests\AbstractTestCase;
-
-class LitecoinTestnetTest extends AbstractTestCase
-{
-    public function testLitecoinTestnetNetwork()
-    {
-        $network = new LitecoinTestnet();
-        $this->assertEquals('6f', $network->getAddressByte());
-        $this->assertEquals('3a', $network->getP2shByte());
-        $this->assertEquals('ef', $network->getPrivByte());
-        $this->assertEquals('04358394', $network->getHDPrivByte());
-        $this->assertEquals('043587cf', $network->getHDPubByte());
-        $this->assertEquals('f1c8d2fd', $network->getNetMagicBytes());
-        $this->assertEquals('tltc', $network->getSegwitBech32Prefix());
-        $this->assertEquals("Litecoin Signed Message", $network->getSignedMessageMagic());
-    }
-}
diff --git a/tests/Network/Networks/ViacoinTest.php b/tests/Network/Networks/ViacoinTest.php
deleted file mode 100644
index 50407ef10..000000000
--- a/tests/Network/Networks/ViacoinTest.php
+++ /dev/null
@@ -1,24 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace BitWasp\Bitcoin\Tests\Network\Networks;
-
-use BitWasp\Bitcoin\Network\Networks\Viacoin;
-use BitWasp\Bitcoin\Tests\AbstractTestCase;
-
-class ViacoinTest extends AbstractTestCase
-{
-    public function testViacoin()
-    {
-        $network = new Viacoin();
-        $this->assertEquals('47', $network->getAddressByte());
-        $this->assertEquals('21', $network->getP2shByte());
-        $this->assertEquals('c7', $network->getPrivByte());
-        $this->assertEquals('0488ade4', $network->getHDPrivByte());
-        $this->assertEquals('0488b21e', $network->getHDPubByte());
-        $this->assertEquals('cbc6680f', $network->getNetMagicBytes());
-        $this->assertEquals('via', $network->getSegwitBech32Prefix());
-        $this->assertEquals("Viacoin Signed Message", $network->getSignedMessageMagic());
-    }
-}
diff --git a/tests/Network/Networks/ViacoinTestnetTest.php b/tests/Network/Networks/ViacoinTestnetTest.php
deleted file mode 100644
index 30451c011..000000000
--- a/tests/Network/Networks/ViacoinTestnetTest.php
+++ /dev/null
@@ -1,24 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace BitWasp\Bitcoin\Tests\Network\Networks;
-
-use BitWasp\Bitcoin\Network\Networks\ViacoinTestnet;
-use BitWasp\Bitcoin\Tests\AbstractTestCase;
-
-class ViacoinTestnetTest extends AbstractTestCase
-{
-    public function testViacoinTestnetNetwork()
-    {
-        $network = new ViacoinTestnet();
-        $this->assertEquals('7f', $network->getAddressByte());
-        $this->assertEquals('c4', $network->getP2shByte());
-        $this->assertEquals('ff', $network->getPrivByte());
-        $this->assertEquals('04358394', $network->getHDPrivByte());
-        $this->assertEquals('043587cf', $network->getHDPubByte());
-        $this->assertEquals('92efc5a9', $network->getNetMagicBytes());
-        $this->assertEquals('tvia', $network->getSegwitBech32Prefix());
-        $this->assertEquals("Viacoin Signed Message", $network->getSignedMessageMagic());
-    }
-}
diff --git a/tests/SignedMessage/SignedMessageTest.php b/tests/SignedMessage/SignedMessageTest.php
index 50fc81914..605233a32 100644
--- a/tests/SignedMessage/SignedMessageTest.php
+++ b/tests/SignedMessage/SignedMessageTest.php
@@ -125,22 +125,4 @@ public function testInvalidMessage3(EcAdapterInterface $ecAdapter)
 
         $serializer->parse($invalid);
     }
-
-    public function testLitecoinFixture()
-    {
-        $network = NetworkFactory::litecoin();
-        $addressCreator = new AddressCreator();
-        $address = $addressCreator->fromString("LKueBopPJdhhniURL373SCQ3vx9evQbVSt", $network);
-        $message = "hey there";
-
-        $cpctSig = new Buffer(base64_decode("H7tlmAm+BRVYmFaNClCN096E+29GOVzy0sH0ev/AbPu4cIDD31G8BIfDghPP+G4tI3Nd0n3VWBB2t1dGtxhoGCQ="));
-        /** @var CompactSignatureSerializerInterface $compactSigSerializer */
-        $compactSigSerializer = EcSerializer::getSerializer(CompactSignatureSerializerInterface::class);
-        $parsed = $compactSigSerializer->parse($cpctSig);
-        $signedMessage = new SignedMessage($message, $parsed);
-
-        $signer = new MessageSigner();
-        $result = $signer->verify($signedMessage, $address, $network);
-        $this->assertTrue($result);
-    }
 }