diff --git a/core/vm/jump_table.go b/core/vm/jump_table.go
index 4ee7cfabf6..a5655bc9c3 100644
--- a/core/vm/jump_table.go
+++ b/core/vm/jump_table.go
@@ -189,7 +189,7 @@ func instructionSetForConfig(config ctypes.ChainConfigurator, bn *big.Int) JumpT
 	if config.IsForked(config.GetECIP1080Transition, bn) {
 		enableSelfBalance(&instructionSet)
 	}
-	if config.IsForked(config.GetEIP2200Transition, bn) {
+	if config.IsForked(config.GetEIP2200Transition, bn) && !config.IsForked(config.GetEIP2200DisableTransition, bn) {
 		enable2200(&instructionSet) // Net metered SSTORE - https://eips.ethereum.org/EIPS/eip-2200
 	}
 	return instructionSet
diff --git a/params/config_classic.go b/params/config_classic.go
index b12a6a71ba..57df984295 100644
--- a/params/config_classic.go
+++ b/params/config_classic.go
@@ -54,21 +54,25 @@ var (
 		EIP214FBlock: big.NewInt(8772000),
 		EIP658FBlock: big.NewInt(8772000),
 
-		// Constantinople eq
+		// Constantinople eq, aka Agharta
 		EIP145FBlock:  big.NewInt(9573000),
 		EIP1014FBlock: big.NewInt(9573000),
 		EIP1052FBlock: big.NewInt(9573000),
 
-		// Istanbul eq
-		EIP152FBlock:  big.NewInt(10500839),
-		EIP1108FBlock: big.NewInt(10500839),
-		EIP1344FBlock: big.NewInt(10500839),
+		// Istanbul eq, aka Aztlan
+		// ECIP-1061
+		EIP152FBlock:  big.NewInt(10_500_839),
+		EIP1108FBlock: big.NewInt(10_500_839),
+		EIP1344FBlock: big.NewInt(10_500_839),
 		EIP1884FBlock: nil,
-		EIP2028FBlock: big.NewInt(10500839),
-		EIP2200FBlock: big.NewInt(10500839), // RePetersburg (=~ re-1283)
+		EIP2028FBlock: big.NewInt(10_500_839),
+		EIP2200FBlock: big.NewInt(10_500_839), // RePetersburg (=~ re-1283)
 
-		EIP1283FBlock:   nil,
-		PetersburgBlock: nil, // Un1283
+		// ECIP-1078, aka Phoenix Fix
+		EIP2200DisableFBlock: big.NewInt(10_500_839),
+		EIP1283FBlock:        big.NewInt(10_500_839),
+		EIP1706FBlock:        big.NewInt(10_500_839),
+		ECIP1080FBlock:       big.NewInt(10_500_839),
 
 		DisposalBlock:      big.NewInt(5900000),
 		ECIP1017FBlock:     big.NewInt(5000000),
diff --git a/params/config_kotti.go b/params/config_kotti.go
index 0cb182b90c..35a9abc121 100644
--- a/params/config_kotti.go
+++ b/params/config_kotti.go
@@ -57,12 +57,13 @@ var (
 		EIP214FBlock: big.NewInt(716617),
 		EIP658FBlock: big.NewInt(716617),
 
-		// Constantinople eq
+		// Constantinople eq, aka Agharta
 		EIP145FBlock:  big.NewInt(1705549),
 		EIP1014FBlock: big.NewInt(1705549),
 		EIP1052FBlock: big.NewInt(1705549),
 
-		// Istanbul eq
+		// Istanbul eq, aka Aztlan
+		// ECIP-1061
 		EIP152FBlock:  big.NewInt(2058191),
 		EIP1108FBlock: big.NewInt(2058191),
 		EIP1344FBlock: big.NewInt(2058191),
@@ -70,6 +71,12 @@ var (
 		EIP2028FBlock: big.NewInt(2058191),
 		EIP2200FBlock: big.NewInt(2058191), // RePetersburg (== re-1283)
 
+		// ECIP-1078, aka Phoenix Fix
+		EIP2200DisableFBlock: big.NewInt(2_208_203),
+		EIP1283FBlock:        big.NewInt(2_208_203),
+		EIP1706FBlock:        big.NewInt(2_208_203),
+		ECIP1080FBlock:       big.NewInt(2_208_203),
+
 		ECIP1017FBlock:    big.NewInt(5000000),
 		ECIP1017EraRounds: big.NewInt(5000000),
 
diff --git a/params/config_mordor.go b/params/config_mordor.go
index d54e7eb7d5..a1104d6ae5 100644
--- a/params/config_mordor.go
+++ b/params/config_mordor.go
@@ -51,12 +51,13 @@ var (
 		EIP214FBlock: big.NewInt(0),
 		EIP658FBlock: big.NewInt(0),
 
-		// Constantinople eq
+		// Constantinople eq, aka Agharta
 		EIP145FBlock:  big.NewInt(301243),
 		EIP1014FBlock: big.NewInt(301243),
 		EIP1052FBlock: big.NewInt(301243),
 
-		// Istanbul eq
+		// Istanbul eq, aka Aztlan
+		// ECIP-1061
 		EIP152FBlock:  big.NewInt(778507),
 		EIP1108FBlock: big.NewInt(778507),
 		EIP1344FBlock: big.NewInt(778507),
@@ -64,6 +65,12 @@ var (
 		EIP2028FBlock: big.NewInt(778507),
 		EIP2200FBlock: big.NewInt(778507), // RePetersburg (== re-1283)
 
+		// ECIP-1078, aka Phoenix Fix
+		EIP2200DisableFBlock: big.NewInt(976_231),
+		EIP1283FBlock:        big.NewInt(976_231),
+		EIP1706FBlock:        big.NewInt(976_231),
+		ECIP1080FBlock:       big.NewInt(976_231),
+
 		DisposalBlock:      big.NewInt(0),
 		ECIP1017FBlock:     big.NewInt(0),
 		ECIP1017EraRounds:  big.NewInt(2000000),
diff --git a/params/types/ctypes/configurator_iface.go b/params/types/ctypes/configurator_iface.go
index e5a5389b7e..3e9293dc0f 100644
--- a/params/types/ctypes/configurator_iface.go
+++ b/params/types/ctypes/configurator_iface.go
@@ -108,6 +108,8 @@ type CatHerder interface {
 	SetEIP1108Transition(n *uint64) error
 	GetEIP2200Transition() *uint64
 	SetEIP2200Transition(n *uint64) error
+	GetEIP2200DisableTransition() *uint64
+	SetEIP2200DisableTransition(n *uint64) error
 	GetEIP1344Transition() *uint64
 	SetEIP1344Transition(n *uint64) error
 	GetEIP1884Transition() *uint64
diff --git a/params/types/genesisT/genesis.go b/params/types/genesisT/genesis.go
index 396f8a4cbf..c789028934 100644
--- a/params/types/genesisT/genesis.go
+++ b/params/types/genesisT/genesis.go
@@ -488,6 +488,14 @@ func (g *Genesis) SetEIP2200Transition(n *uint64) error {
 	return g.Config.SetEIP2200Transition(n)
 }
 
+func (g *Genesis) GetEIP2200DisableTransition() *uint64 {
+	return g.Config.GetEIP2200DisableTransition()
+}
+
+func (g *Genesis) SetEIP2200DisableTransition(n *uint64) error {
+	return g.Config.SetEIP2200DisableTransition(n)
+}
+
 func (g *Genesis) GetEIP1344Transition() *uint64 {
 	return g.Config.GetEIP1344Transition()
 }
diff --git a/params/types/goethereum/goethereum_configurator.go b/params/types/goethereum/goethereum_configurator.go
index e943cebf3d..bfd773dfab 100644
--- a/params/types/goethereum/goethereum_configurator.go
+++ b/params/types/goethereum/goethereum_configurator.go
@@ -326,6 +326,17 @@ func (c *ChainConfig) SetEIP2200Transition(n *uint64) error {
 	return nil
 }
 
+func (c *ChainConfig) GetEIP2200DisableTransition() *uint64 {
+	return nil
+}
+
+func (c *ChainConfig) SetEIP2200DisableTransition(n *uint64) error {
+	if n == nil {
+		return nil
+	}
+	return ctypes.ErrUnsupportedConfigFatal
+}
+
 func (c *ChainConfig) GetEIP1344Transition() *uint64 {
 	return bigNewU64(c.IstanbulBlock)
 }
diff --git a/params/types/multigeth/chain_config.go b/params/types/multigeth/chain_config.go
index f81b518c27..f18821af4b 100644
--- a/params/types/multigeth/chain_config.go
+++ b/params/types/multigeth/chain_config.go
@@ -151,7 +151,8 @@ type MultiGethChainConfig struct {
 	// EIP-2200: Rebalance net-metered SSTORE gas cost with consideration of SLOAD gas cost change
 	// It's a combined version of EIP-1283 + EIP-1706, with a structured definition so as to make it
 	// interoperable with other gas changes such as EIP-1884.
-	EIP2200FBlock *big.Int `json:"eip2200FBlock,omitempty"`
+	EIP2200FBlock        *big.Int `json:"eip2200FBlock,omitempty"`
+	EIP2200DisableFBlock *big.Int `json:"eip2200DisableFBlock,omitempty"`
 
 	// EIP-2384: Difficulty Bomb Delay (Muir Glacier)
 	eip2384Inferred bool
diff --git a/params/types/multigeth/chain_config_configurator.go b/params/types/multigeth/chain_config_configurator.go
index 039ce8274a..c2d3d5d5b7 100644
--- a/params/types/multigeth/chain_config_configurator.go
+++ b/params/types/multigeth/chain_config_configurator.go
@@ -318,6 +318,15 @@ func (c *MultiGethChainConfig) SetEIP2200Transition(n *uint64) error {
 	return nil
 }
 
+func (c *MultiGethChainConfig) GetEIP2200DisableTransition() *uint64 {
+	return bigNewU64(c.EIP2200DisableFBlock)
+}
+
+func (c *MultiGethChainConfig) SetEIP2200DisableTransition(n *uint64) error {
+	c.EIP2200DisableFBlock = setBig(c.EIP2200DisableFBlock, n)
+	return nil
+}
+
 func (c *MultiGethChainConfig) GetEIP1344Transition() *uint64 {
 	return bigNewU64(c.EIP1344FBlock)
 }
diff --git a/params/types/oldmultigeth/oldmultigeth_chain_config_configurator.go b/params/types/oldmultigeth/oldmultigeth_chain_config_configurator.go
index d5e7916691..bbab2b7570 100644
--- a/params/types/oldmultigeth/oldmultigeth_chain_config_configurator.go
+++ b/params/types/oldmultigeth/oldmultigeth_chain_config_configurator.go
@@ -314,6 +314,17 @@ func (c *ChainConfig) SetEIP2200Transition(n *uint64) error {
 	return nil
 }
 
+func (c *ChainConfig) GetEIP2200DisableTransition() *uint64 {
+	return nil
+}
+
+func (c *ChainConfig) SetEIP2200DisableTransition(n *uint64) error {
+	if n == nil {
+		return nil
+	}
+	return ctypes.ErrUnsupportedConfigFatal
+}
+
 func (c *ChainConfig) GetEIP1344Transition() *uint64 {
 	return bigNewU64(c.IstanbulBlock)
 }
diff --git a/params/types/parity/parity_configurator.go b/params/types/parity/parity_configurator.go
index f999bdb240..6a3bdb123f 100644
--- a/params/types/parity/parity_configurator.go
+++ b/params/types/parity/parity_configurator.go
@@ -250,6 +250,17 @@ func (spec *ParityChainSpec) SetEIP2200Transition(i *uint64) error {
 	return nil
 }
 
+func (spec *ParityChainSpec) GetEIP2200DisableTransition() *uint64 {
+	return nil
+}
+
+func (spec *ParityChainSpec) SetEIP2200DisableTransition(n *uint64) error {
+	if n == nil {
+		return nil
+	}
+	return ctypes.ErrUnsupportedConfigFatal
+}
+
 func (spec *ParityChainSpec) GetEIP1344Transition() *uint64 {
 	return spec.Params.EIP1344Transition.Uint64P()
 }