diff --git a/account.go b/account.go
index aea379bd..6248fe11 100644
--- a/account.go
+++ b/account.go
@@ -104,10 +104,11 @@ func (p *addressParser) ParseAddress(ctx context.Context, address string) (ton.A
 	if len(bytesAddress) == 36 {
 		checksum := uint64(binary.BigEndian.Uint16(bytesAddress[34:36]))
 		if checksum == crc.CalculateCRC(crc.XMODEM, bytesAddress[0:34]) {
+			testnetOnly := bytesAddress[0]&0b10000000 != 0
 			bounce := bytesAddress[0]&0x11 == 0x11
 			accountID.Workchain = int32(int8(bytesAddress[1]))
 			copy(accountID.Address[:], bytesAddress[2:34])
-			return ton.Address{ID: accountID, Bounce: bounce, StateInit: nil}, nil
+			return ton.Address{ID: accountID, Bounce: bounce, StateInit: nil, TestnetOnly: testnetOnly}, nil
 		}
 	}
 	if !strings.Contains(address, ".") {
diff --git a/address_test.go b/address_test.go
index cc6a3b25..89f87819 100644
--- a/address_test.go
+++ b/address_test.go
@@ -12,39 +12,52 @@ func TestParseAddress(t *testing.T) {
 		parseToHumanAddress = iota
 		parseToRawAddress
 		parseDnsToRawAddress
+		parseTestnetOnlyAddress
 	)
 
 	type testCase struct {
-		name      string
-		typeParse int
-		request   string
-		response  string
+		name                string
+		typeParse           int
+		request             string
+		response            string
+		responseTestnetOnly bool
 	}
 
 	for _, test := range []testCase{
 		{
-			name:      "Parse to raw address",
-			typeParse: parseToHumanAddress,
-			request:   "0:91d73056e035232f09aaf8242a1d51eea98b6a5bebbf8ac0c9e521d02a1a4bdb",
-			response:  "EQCR1zBW4DUjLwmq-CQqHVHuqYtqW-u_isDJ5SHQKhpL2wQV",
+			name:                "Parse to raw address",
+			typeParse:           parseToHumanAddress,
+			request:             "0:91d73056e035232f09aaf8242a1d51eea98b6a5bebbf8ac0c9e521d02a1a4bdb",
+			response:            "EQCR1zBW4DUjLwmq-CQqHVHuqYtqW-u_isDJ5SHQKhpL2wQV",
+			responseTestnetOnly: false,
 		},
 		{
-			name:      "Parse to human address",
-			typeParse: parseToRawAddress,
-			request:   "EQCR1zBW4DUjLwmq-CQqHVHuqYtqW-u_isDJ5SHQKhpL2wQV",
-			response:  "0:91d73056e035232f09aaf8242a1d51eea98b6a5bebbf8ac0c9e521d02a1a4bdb",
+			name:                "Parse to human address",
+			typeParse:           parseToRawAddress,
+			request:             "EQCR1zBW4DUjLwmq-CQqHVHuqYtqW-u_isDJ5SHQKhpL2wQV",
+			response:            "0:91d73056e035232f09aaf8242a1d51eea98b6a5bebbf8ac0c9e521d02a1a4bdb",
+			responseTestnetOnly: false,
 		},
 		{
-			name:      "Parse dns to raw address",
-			typeParse: parseDnsToRawAddress,
-			request:   "blackpepper.ton",
-			response:  "0:44556b55c15052eb44c6b75a9eccbc6280d32d598d12e975f435195795bb11d5",
+			name:                "Parse dns to raw address",
+			typeParse:           parseDnsToRawAddress,
+			request:             "blackpepper.ton",
+			response:            "0:44556b55c15052eb44c6b75a9eccbc6280d32d598d12e975f435195795bb11d5",
+			responseTestnetOnly: false,
 		},
 		{
-			name:      "Parse dns to raw address",
-			typeParse: parseDnsToRawAddress,
-			request:   "subbotin.ton",
-			response:  "0:2cf3b5b8c891e517c9addbda1c0386a09ccacbb0e3faf630b51cfc8152325acb",
+			name:                "Parse dns to raw address",
+			typeParse:           parseDnsToRawAddress,
+			request:             "subbotin.ton",
+			response:            "0:2cf3b5b8c891e517c9addbda1c0386a09ccacbb0e3faf630b51cfc8152325acb",
+			responseTestnetOnly: false,
+		},
+		{
+			name:                "Parse only testnet",
+			typeParse:           parseTestnetOnlyAddress,
+			request:             "kQCR1zBW4DUjLwmq-CQqHVHuqYtqW-u_isDJ5SHQKhpL27-f",
+			response:            "0:91d73056e035232f09aaf8242a1d51eea98b6a5bebbf8ac0c9e521d02a1a4bdb",
+			responseTestnetOnly: true,
 		},
 	} {
 		t.Run(test.name, func(t *testing.T) {
@@ -54,15 +67,19 @@ func TestParseAddress(t *testing.T) {
 			}
 			switch test.typeParse {
 			case parseToHumanAddress:
-				if account.ID.ToHuman(true, false) != test.response {
+				if account.ID.ToHuman(true, false) != test.response && account.TestnetOnly != test.responseTestnetOnly {
 					t.Fatalf("not equal address")
 				}
 			case parseToRawAddress:
-				if account.ID.ToRaw() != test.response {
+				if account.ID.ToRaw() != test.response && account.TestnetOnly != test.responseTestnetOnly {
 					t.Fatalf("not equal address")
 				}
 			case parseDnsToRawAddress:
-				if account.ID.ToRaw() != test.response {
+				if account.ID.ToRaw() != test.response && account.TestnetOnly != test.responseTestnetOnly {
+					t.Fatalf("not equal address")
+				}
+			case parseTestnetOnlyAddress:
+				if account.ID.ToRaw() != test.response && account.TestnetOnly != test.responseTestnetOnly {
 					t.Fatalf("not equal address")
 				}
 			}
diff --git a/ton/address.go b/ton/address.go
index 965326e5..544d9f9f 100644
--- a/ton/address.go
+++ b/ton/address.go
@@ -9,7 +9,8 @@ import (
 // Address is a high-level abstraction containing additional information besides AccountID,
 // which is useful for building more advanced workflows.
 type Address struct {
-	ID        AccountID
-	Bounce    bool
-	StateInit *tlb.StateInit
+	ID          AccountID
+	Bounce      bool
+	StateInit   *tlb.StateInit
+	TestnetOnly bool
 }