diff --git a/api/service/explorer/structs.go b/api/service/explorer/structs.go
index 6445a526c..18550bccd 100644
--- a/api/service/explorer/structs.go
+++ b/api/service/explorer/structs.go
@@ -94,8 +94,8 @@ func GetTransaction(tx *types.Transaction, accountBlock *types.Block) *Transacti
 	return &Transaction{
 		ID:        tx.Hash().Hex(),
 		Timestamp: strconv.Itoa(int(accountBlock.Time().Int64() * 1000)),
-		From:      msg.From().Hex(),
-		To:        msg.To().Hex(),
+		From:      msg.From().Hex(), // TODO ek – use bech32
+		To:        msg.To().Hex(),   // TODO ek – use bech32
 		Value:     msg.Value(),
 		Bytes:     strconv.Itoa(int(tx.Size())),
 		Data:      hex.EncodeToString(tx.Data()),
diff --git a/api/service/explorer/structs_test.go b/api/service/explorer/structs_test.go
index 954bd23e0..31ecb7af6 100644
--- a/api/service/explorer/structs_test.go
+++ b/api/service/explorer/structs_test.go
@@ -22,6 +22,6 @@ func TestGetTransaction(t *testing.T) {
 
 	tx := GetTransaction(tx1, block)
 	assert.Equal(t, tx.ID, tx1.Hash().Hex(), "should be equal tx1.Hash()")
-	assert.Equal(t, tx.To, tx1.To().Hex(), "should be equal tx1.To()")
+	assert.Equal(t, tx.To, tx1.To().Hex(), "should be equal tx1.To()") // TODO ek – use bech32
 	assert.Equal(t, tx.Bytes, strconv.Itoa(int(tx1.Size())), "should be equal tx1.Size()")
 }
diff --git a/cmd/client/wallet/main.go b/cmd/client/wallet/main.go
index c7d274501..0dc91a92a 100644
--- a/cmd/client/wallet/main.go
+++ b/cmd/client/wallet/main.go
@@ -272,19 +272,19 @@ func processNewCommnad() {
 	if err != nil {
 		fmt.Printf("new account error: %v\n", err)
 	}
-	fmt.Printf("account: %s\n", account.Address.Hex())
+	fmt.Printf("account: %s\n", common2.MustAddressToBech32(account.Address))
 	fmt.Printf("URL: %s\n", account.URL)
 }
 
 func _exportAccount(account accounts.Account) {
-	fmt.Printf("account: %s\n", account.Address.Hex())
+	fmt.Printf("account: %s\n", common2.MustAddressToBech32(account.Address))
 	fmt.Printf("URL: %s\n", account.URL)
 	pass := utils.AskForPassphrase("Original Passphrase: ")
 	newpass := utils.AskForPassphrase("Export Passphrase: ")
 
 	data, err := ks.Export(account, pass, newpass)
 	if err == nil {
-		filename := fmt.Sprintf(".hmy/%s.key", account.Address.Hex())
+		filename := fmt.Sprintf(".hmy/%s.key", common2.MustAddressToBech32(account.Address))
 		f, err := os.OpenFile(filename, os.O_CREATE|os.O_WRONLY, 0644)
 		if err != nil {
 			panic("Failed to open keystore")
@@ -316,7 +316,7 @@ func processListCommand() {
 
 	allAccounts := ks.Accounts()
 	for _, account := range allAccounts {
-		fmt.Printf("account: %s\n", account.Address.Hex())
+		fmt.Printf("account: %s\n", common2.MustAddressToBech32(account.Address))
 		fmt.Printf("URL: %s\n", account.URL)
 	}
 }
@@ -330,7 +330,7 @@ func processExportCommand() {
 
 	allAccounts := ks.Accounts()
 	for _, account := range allAccounts {
-		if acc == "" || acc == account.Address.Hex() {
+		if acc == "" || acc == common2.MustAddressToBech32(account.Address) {
 			_exportAccount(account)
 		}
 	}
@@ -360,7 +360,7 @@ func processImportCommnad() {
 	if err != nil {
 		panic("Failed to import the private key")
 	}
-	fmt.Printf("Private key imported for account: %s\n", account.Address.Hex())
+	fmt.Printf("Private key imported for account: %s\n", common2.MustAddressToBech32(account.Address))
 }
 
 func processBalancesCommand() {
@@ -373,14 +373,14 @@ func processBalancesCommand() {
 		allAccounts := ks.Accounts()
 		for i, account := range allAccounts {
 			fmt.Printf("Account %d:\n", i)
-			fmt.Printf("    Address: %s\n", account.Address.Hex())
+			fmt.Printf("    Address: %s\n", common2.MustAddressToBech32(account.Address))
 			for shardID, balanceNonce := range FetchBalance(account.Address) {
 				fmt.Printf("    Balance in Shard %d:  %s, nonce: %v \n", shardID, convertBalanceIntoReadableFormat(balanceNonce.balance), balanceNonce.nonce)
 			}
 		}
 	} else {
 		address := common2.ParseAddr(*balanceAddressPtr)
-		fmt.Printf("Account: %s:\n", address.Hex())
+		fmt.Printf("Account: %s:\n", common2.MustAddressToBech32(address))
 		for shardID, balanceNonce := range FetchBalance(address) {
 			fmt.Printf("    Balance in Shard %d:  %s, nonce: %v \n", shardID, convertBalanceIntoReadableFormat(balanceNonce.balance), balanceNonce.nonce)
 		}
diff --git a/cmd/harmony/main.go b/cmd/harmony/main.go
index 063d498ee..716c84d0b 100644
--- a/cmd/harmony/main.go
+++ b/cmd/harmony/main.go
@@ -18,6 +18,7 @@ import (
 	"github.com/harmony-one/harmony/consensus"
 	"github.com/harmony-one/harmony/core"
 	"github.com/harmony-one/harmony/drand"
+	"github.com/harmony-one/harmony/internal/common"
 	nodeconfig "github.com/harmony-one/harmony/internal/configs/node"
 	"github.com/harmony-one/harmony/internal/ctxerror"
 	"github.com/harmony-one/harmony/internal/genesis"
@@ -173,7 +174,7 @@ func initSetup() {
 
 	foundAccount := false
 	for _, account := range allAccounts {
-		if genesisAccount.Address == account.Address.Hex() {
+		if common.ParseAddr(genesisAccount.Address) == account.Address {
 			myAccount = account
 			foundAccount = true
 			break
@@ -187,7 +188,7 @@ func initSetup() {
 
 	genesisAccount.ShardID = uint32(accountIndex % core.GenesisShardNum)
 
-	fmt.Printf("My Account: %s\n", myAccount.Address.Hex())
+	fmt.Printf("My Account: %s\n", common.MustAddressToBech32(myAccount.Address))
 	fmt.Printf("Key URL: %s\n", myAccount.URL)
 	fmt.Printf("My Genesis Account: %v\n", *genesisAccount)
 
@@ -313,7 +314,7 @@ func setUpConsensusAndNode(nodeConfig *nodeconfig.ConfigType) *node.Node {
 	currentNode.NodeConfig.SetRole(nodeconfig.NewNode)
 	currentNode.StakingAccount = myAccount
 	utils.GetLogInstance().Info("node account set",
-		"address", currentNode.StakingAccount.Address.Hex())
+		"address", common.MustAddressToBech32(currentNode.StakingAccount.Address))
 
 	if gsif, err := consensus.NewGenesisStakeInfoFinder(); err == nil {
 		currentConsensus.SetStakeInfoFinder(gsif)
diff --git a/cmd/keygen/main.go b/cmd/keygen/main.go
index 6103ba5a7..d2407a3df 100644
--- a/cmd/keygen/main.go
+++ b/cmd/keygen/main.go
@@ -9,6 +9,8 @@ import (
 	"strconv"
 
 	crypto2 "github.com/ethereum/go-ethereum/crypto"
+
+	"github.com/harmony-one/harmony/internal/common"
 )
 
 var (
@@ -38,7 +40,7 @@ func main() {
 			}
 			crypto2.FromECDSA(priKey)
 
-			fmt.Printf("{Address: \"%s\", Private: \"%s\", Public: \"%s\"},\n", crypto2.PubkeyToAddress(priKey.PublicKey).Hex(), hex.EncodeToString(crypto2.FromECDSA(priKey)), crypto2.PubkeyToAddress(priKey.PublicKey).Hex())
+			fmt.Printf("{Address: \"%s\", Private: \"%s\", Public: \"%s\"},"+"\n", common.MustAddressToBech32(crypto2.PubkeyToAddress(priKey.PublicKey)), hex.EncodeToString(crypto2.FromECDSA(priKey)), common.MustAddressToBech32(crypto2.PubkeyToAddress(priKey.PublicKey)))
 		}
 	} else {
 		fmt.Println("Unable to parse # as the argument.")
diff --git a/consensus/consensus.go b/consensus/consensus.go
index d0bb44aa2..01ed5eb7b 100644
--- a/consensus/consensus.go
+++ b/consensus/consensus.go
@@ -15,6 +15,7 @@ import (
 	"github.com/harmony-one/harmony/core/state"
 	"github.com/harmony-one/harmony/core/types"
 	bls_cosi "github.com/harmony-one/harmony/crypto/bls"
+	common2 "github.com/harmony-one/harmony/internal/common"
 	nodeconfig "github.com/harmony-one/harmony/internal/configs/node"
 	"github.com/harmony-one/harmony/internal/ctxerror"
 	"github.com/harmony-one/harmony/internal/genesis"
@@ -217,7 +218,7 @@ func New(host p2p.Host, ShardID uint32, leader p2p.Peer, blsPriKey *bls.SecretKe
 	consensus.commitSigs = map[common.Address]*bls.Sign{}
 	consensus.CommitteeAddresses = make(map[common.Address]bool)
 
-	consensus.validators.Store(utils.GetBlsAddress(leader.ConsensusPubKey).Hex(), leader)
+	consensus.validators.Store(common2.MustAddressToBech32(utils.GetBlsAddress(leader.ConsensusPubKey)), leader)
 
 	// For now use socket address as ID
 	// TODO: populate Id derived from address
diff --git a/consensus/consensus_service.go b/consensus/consensus_service.go
index bf7caa421..cf8c19438 100644
--- a/consensus/consensus_service.go
+++ b/consensus/consensus_service.go
@@ -8,6 +8,7 @@ import (
 	"time"
 
 	"github.com/harmony-one/harmony/crypto/hash"
+	common2 "github.com/harmony-one/harmony/internal/common"
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/rlp"
@@ -380,7 +381,7 @@ func (consensus *Consensus) AddPeers(peers []*p2p.Peer) int {
 	count := 0
 
 	for _, peer := range peers {
-		_, ok := consensus.validators.LoadOrStore(utils.GetBlsAddress(peer.ConsensusPubKey).Hex(), *peer)
+		_, ok := consensus.validators.LoadOrStore(common2.MustAddressToBech32(utils.GetBlsAddress(peer.ConsensusPubKey)), *peer)
 		if !ok {
 			consensus.pubKeyLock.Lock()
 			if _, ok := consensus.CommitteeAddresses[peer.ConsensusPubKey.GetAddress()]; !ok {
@@ -510,7 +511,7 @@ func (consensus *Consensus) verifySenderKey(msg *msg_pb.Message) (*bls.PublicKey
 	senderAddr := common.BytesToAddress(addrBytes[:])
 
 	if !consensus.IsValidatorInCommittee(senderAddr) {
-		return nil, fmt.Errorf("Validator address %s is not in committee", senderAddr.Hex())
+		return nil, fmt.Errorf("Validator address %s is not in committee", common2.MustAddressToBech32(senderAddr))
 	}
 	return senderKey, nil
 }
@@ -525,7 +526,7 @@ func (consensus *Consensus) verifyViewChangeSenderKey(msg *msg_pb.Message) (*bls
 	senderAddr := common.BytesToAddress(addrBytes[:])
 
 	if !consensus.IsValidatorInCommittee(senderAddr) {
-		return nil, common.Address{}, fmt.Errorf("Validator address %s is not in committee", senderAddr.Hex())
+		return nil, common.Address{}, fmt.Errorf("Validator address %s is not in committee", common2.MustAddressToBech32(senderAddr))
 	}
 	return senderKey, senderAddr, nil
 }
diff --git a/consensus/consensus_service_test.go b/consensus/consensus_service_test.go
index fd3df7f66..c282ff6c3 100644
--- a/consensus/consensus_service_test.go
+++ b/consensus/consensus_service_test.go
@@ -7,6 +7,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 
 	"github.com/harmony-one/harmony/crypto/bls"
+	common2 "github.com/harmony-one/harmony/internal/common"
 
 	msg_pb "github.com/harmony-one/harmony/api/proto/message"
 	"github.com/harmony-one/harmony/internal/utils"
@@ -28,7 +29,7 @@ func TestGetPeerFromID(t *testing.T) {
 		t.Fatalf("Cannot craeate consensus: %v", err)
 	}
 	leaderAddress := utils.GetAddressFromBlsPubKey(leader.ConsensusPubKey)
-	l := consensus.GetPeerByAddress(leaderAddress.Hex())
+	l := consensus.GetPeerByAddress(common2.MustAddressToBech32(leaderAddress))
 	if l.IP != leader.IP || l.Port != leader.Port {
 		t.Errorf("leader IP not equal")
 	}
diff --git a/core/state/statedb_test.go b/core/state/statedb_test.go
index edcae241d..b17e1fc31 100644
--- a/core/state/statedb_test.go
+++ b/core/state/statedb_test.go
@@ -33,6 +33,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/harmony-one/harmony/core/types"
+	common2 "github.com/harmony-one/harmony/internal/common"
 )
 
 // Tests that updating a state trie does not leak any database writes prior to
@@ -280,7 +281,7 @@ func newTestAction(addr common.Address, r *rand.Rand) testAction {
 	action := actions[r.Intn(len(actions))]
 	var nameargs []string
 	if !action.noAddr {
-		nameargs = append(nameargs, addr.Hex())
+		nameargs = append(nameargs, common2.MustAddressToBech32(addr))
 	}
 	for _, i := range action.args {
 		action.args[i] = rand.Int63n(100)
@@ -366,7 +367,7 @@ func (test *snapshotTest) checkEqual(state, checkstate *DB) error {
 		var err error
 		checkeq := func(op string, a, b interface{}) bool {
 			if err == nil && !reflect.DeepEqual(a, b) {
-				err = fmt.Errorf("got %s(%s) == %v, want %v", op, addr.Hex(), a, b)
+				err = fmt.Errorf("got %s(%s) == %v, want %v", op, common2.MustAddressToBech32(addr), a, b)
 				return false
 			}
 			return true
diff --git a/core/types/shard_state.go b/core/types/shard_state.go
index 8dab0c683..912685e2a 100644
--- a/core/types/shard_state.go
+++ b/core/types/shard_state.go
@@ -9,6 +9,7 @@ import (
 	"github.com/harmony-one/bls/ffi/go/bls"
 	"golang.org/x/crypto/sha3"
 
+	common2 "github.com/harmony-one/harmony/internal/common"
 	"github.com/harmony-one/harmony/internal/ctxerror"
 )
 
@@ -208,5 +209,5 @@ func (n NodeID) Serialize() []byte {
 }
 
 func (n NodeID) String() string {
-	return "ECDSA: " + n.EcdsaAddress.Hex() + ", BLS: " + hex.EncodeToString(n.BlsPublicKey[:])
+	return "ECDSA: " + common2.MustAddressToBech32(n.EcdsaAddress) + ", BLS: " + hex.EncodeToString(n.BlsPublicKey[:])
 }
diff --git a/drand/drand.go b/drand/drand.go
index b8fd42076..9c1754b37 100644
--- a/drand/drand.go
+++ b/drand/drand.go
@@ -5,6 +5,7 @@ import (
 	"sync"
 
 	"github.com/harmony-one/harmony/crypto/hash"
+	common2 "github.com/harmony-one/harmony/internal/common"
 
 	"github.com/ethereum/go-ethereum/common"
 
@@ -91,7 +92,7 @@ func New(host p2p.Host, ShardID uint32, peers []p2p.Peer, leader p2p.Peer, confi
 	dRand.leader = leader
 	dRand.CommitteeAddresses = map[common.Address]bool{}
 	for _, peer := range peers {
-		dRand.validators.Store(utils.GetBlsAddress(peer.ConsensusPubKey).Hex(), peer)
+		dRand.validators.Store(common2.MustAddressToBech32(utils.GetBlsAddress(peer.ConsensusPubKey)), peer)
 		dRand.CommitteeAddresses[utils.GetBlsAddress(peer.ConsensusPubKey)] = true
 	}
 
@@ -136,7 +137,7 @@ func (dRand *DRand) AddPeers(peers []*p2p.Peer) int {
 	count := 0
 
 	for _, peer := range peers {
-		_, ok := dRand.validators.LoadOrStore(utils.GetBlsAddress(peer.ConsensusPubKey).Hex(), *peer)
+		_, ok := dRand.validators.LoadOrStore(common2.MustAddressToBech32(utils.GetBlsAddress(peer.ConsensusPubKey)), *peer)
 		if !ok {
 			dRand.pubKeyLock.Lock()
 			if _, ok := dRand.CommitteeAddresses[peer.ConsensusPubKey.GetAddress()]; !ok {
diff --git a/drand/drand_test.go b/drand/drand_test.go
index 529747fe4..335550a65 100644
--- a/drand/drand_test.go
+++ b/drand/drand_test.go
@@ -6,9 +6,11 @@ import (
 	"testing"
 
 	bls2 "github.com/harmony-one/harmony/crypto/bls"
+	common2 "github.com/harmony-one/harmony/internal/common"
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/harmony-one/bls/ffi/go/bls"
+
 	msg_pb "github.com/harmony-one/harmony/api/proto/message"
 	"github.com/harmony-one/harmony/core/types"
 	"github.com/harmony-one/harmony/internal/utils"
@@ -95,7 +97,7 @@ func TestGetValidatorByPeerId(test *testing.T) {
 		test.Error("dRand should belong to a leader")
 	}
 
-	validatorAddress := utils.GetAddressFromBlsPubKey(validatorPubKey).Hex()
+	validatorAddress := common2.MustAddressToBech32(utils.GetAddressFromBlsPubKey(validatorPubKey))
 
 	if dRand.getValidatorPeerByAddress(validatorAddress) == nil {
 		test.Error("Unable to get validator by Peerid")
diff --git a/internal/hmyapi/util.go b/internal/hmyapi/util.go
index 40a0e63b1..e75cbfb32 100644
--- a/internal/hmyapi/util.go
+++ b/internal/hmyapi/util.go
@@ -7,6 +7,7 @@ import (
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/harmony-one/harmony/core/types"
+	common2 "github.com/harmony-one/harmony/internal/common"
 )
 
 // SubmitTransaction is a helper function that submits tx to txPool and logs a message.
@@ -21,7 +22,7 @@ func SubmitTransaction(ctx context.Context, b Backend, tx *types.Transaction) (c
 			return common.Hash{}, err
 		}
 		addr := crypto.CreateAddress(from, tx.Nonce())
-		log.Info("Submitted contract creation", "fullhash", tx.Hash().Hex(), "contract", addr.Hex())
+		log.Info("Submitted contract creation", "fullhash", tx.Hash().Hex(), "contract", common2.MustAddressToBech32(addr))
 	} else {
 		log.Info("Submitted transaction", "fullhash", tx.Hash().Hex(), "recipient", tx.To())
 	}
diff --git a/node/contract.go b/node/contract.go
index 2affd4c64..65da5b8db 100644
--- a/node/contract.go
+++ b/node/contract.go
@@ -12,10 +12,12 @@ import (
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/params"
+
 	"github.com/harmony-one/harmony/common/denominations"
 	"github.com/harmony-one/harmony/contracts"
 	"github.com/harmony-one/harmony/contracts/structs"
 	"github.com/harmony-one/harmony/core/types"
+	common2 "github.com/harmony-one/harmony/internal/common"
 	"github.com/harmony-one/harmony/internal/genesis"
 	"github.com/harmony-one/harmony/internal/utils"
 )
@@ -170,7 +172,7 @@ func (node *Node) CallFaucetContract(address common.Address) common.Hash {
 	// Temporary code to workaround explorer issue for searching new addresses (https://github.com/harmony-one/harmony/issues/503)
 	nonce := atomic.AddUint64(&node.ContractDeployerCurrentNonce, 1)
 	tx, _ := types.SignTx(types.NewTransaction(nonce-1, address, node.Consensus.ShardID, big.NewInt(0), params.TxGasContractCreation*10, nil, nil), types.HomesteadSigner{}, node.ContractDeployerKey)
-	utils.GetLogInstance().Info("Sending placeholder token to ", "Address", address.Hex())
+	utils.GetLogInstance().Info("Sending placeholder token to ", "Address", common2.MustAddressToBech32(address))
 	node.addPendingTransactions(types.Transactions{tx})
 	// END Temporary code
 
@@ -199,7 +201,7 @@ func (node *Node) callGetFreeTokenWithNonce(address common.Address, nonce uint64
 		return common.Hash{}
 	}
 	tx, _ := types.SignTx(types.NewTransaction(nonce, node.ContractAddresses[0], node.Consensus.ShardID, big.NewInt(0), params.TxGasContractCreation*10, nil, bytesData), types.HomesteadSigner{}, node.ContractDeployerKey)
-	utils.GetLogInstance().Info("Sending Free Token to ", "Address", address.Hex())
+	utils.GetLogInstance().Info("Sending Free Token to ", "Address", common2.MustAddressToBech32(address))
 
 	node.addPendingTransactions(types.Transactions{tx})
 	return tx.Hash()