diff --git a/src/sdk/main/include/impl/EntityIdHelper.h b/src/sdk/main/include/impl/EntityIdHelper.h
index af0874535..f9e2a32b1 100644
--- a/src/sdk/main/include/impl/EntityIdHelper.h
+++ b/src/sdk/main/include/impl/EntityIdHelper.h
@@ -109,14 +109,6 @@ template<typename T = uint64_t>
  */
 [[nodiscard]] std::string checksum(std::string_view address, const LedgerId& ledgerId);
 
-/**
- * Determine if the input byte array could represent a long-zero address.
- *
- * @param address The byte array to determine if it could be a long-zero address.
- * @return \c TRUE if the input byte array could represent a long-zero address, otherwise \c FALSE.
- */
-[[nodiscard]] bool isLongZeroAddress(const std::vector<std::byte>& address);
-
 /**
  * Decode a Solidity address contained in a string to a byte array.
  *
diff --git a/src/sdk/main/src/AccountId.cc b/src/sdk/main/src/AccountId.cc
index cd478a1e7..4e656c42c 100644
--- a/src/sdk/main/src/AccountId.cc
+++ b/src/sdk/main/src/AccountId.cc
@@ -146,15 +146,7 @@ AccountId AccountId::fromEvmAddress(const EvmAddress& evmAddress, uint64_t shard
 //-----
 AccountId AccountId::fromSolidityAddress(std::string_view address)
 {
-  const std::vector<std::byte> bytes = internal::EntityIdHelper::decodeSolidityAddress(address);
-  if (internal::EntityIdHelper::isLongZeroAddress(bytes))
-  {
-    return internal::EntityIdHelper::fromSolidityAddress<AccountId>(bytes);
-  }
-  else
-  {
-    return fromEvmAddress(address);
-  }
+  return fromEvmAddress(address);
 }
 
 //-----
@@ -262,7 +254,7 @@ AccountId& AccountId::populateAccountEvmAddress(const Client& client)
   }
 
   // build url for Mirror Node
-  std::string url = "https://" + mirrorNetworks.front() + "/api/v1/accounts/0.0." + std::to_string(mAccountNum.value());
+  std::string url = "https://" + mirrorNetworks.front() + "/api/v1/accounts/" + toString();
 
   // fetch account data for this account from Mirror Node
   std::string response = internal::HttpClient::invokeREST(url, "GET");
diff --git a/src/sdk/main/src/ContractId.cc b/src/sdk/main/src/ContractId.cc
index 63a4bc740..9e34e6803 100644
--- a/src/sdk/main/src/ContractId.cc
+++ b/src/sdk/main/src/ContractId.cc
@@ -103,15 +103,7 @@ ContractId ContractId::fromEvmAddress(const EvmAddress& evmAddress, uint64_t sha
 //-----
 ContractId ContractId::fromSolidityAddress(std::string_view address)
 {
-  const std::vector<std::byte> bytes = internal::EntityIdHelper::decodeSolidityAddress(address);
-  if (internal::EntityIdHelper::isLongZeroAddress(bytes))
-  {
-    return internal::EntityIdHelper::fromSolidityAddress<ContractId>(bytes);
-  }
-  else
-  {
-    return fromEvmAddress(address);
-  }
+  return fromEvmAddress(address);
 }
 
 //-----
diff --git a/src/sdk/main/src/impl/EntityIdHelper.cc b/src/sdk/main/src/impl/EntityIdHelper.cc
index c66ca439b..649603c7b 100644
--- a/src/sdk/main/src/impl/EntityIdHelper.cc
+++ b/src/sdk/main/src/impl/EntityIdHelper.cc
@@ -160,21 +160,6 @@ std::string checksum(std::string_view address, const LedgerId& ledgerId)
   return checksumStr;
 }
 
-//-----
-bool isLongZeroAddress(const std::vector<std::byte>& address)
-{
-  // The address is a possible long-zero address if the first 12 bytes are zeros.
-  for (int i = 0; i < 12; ++i)
-  {
-    if (address.at(i) != std::byte(0x0))
-    {
-      return false;
-    }
-  }
-
-  return true;
-}
-
 //-----
 std::vector<std::byte> decodeSolidityAddress(std::string_view address)
 {
diff --git a/src/sdk/tests/integration/AccountCreateTransactionIntegrationTests.cc b/src/sdk/tests/integration/AccountCreateTransactionIntegrationTests.cc
index 10e1babdc..0e931e2d1 100644
--- a/src/sdk/tests/integration/AccountCreateTransactionIntegrationTests.cc
+++ b/src/sdk/tests/integration/AccountCreateTransactionIntegrationTests.cc
@@ -28,18 +28,6 @@ using namespace Hiero;
 
 class AccountCreateTransactionIntegrationTests : public BaseIntegrationTest
 {
-protected:
-  bool isLongZero(const std::vector<std::byte> address)
-  {
-    for (int i = 0; i < 12; i++)
-    {
-      if (address[i] != std::byte{ 0 })
-      {
-        return false;
-      }
-    }
-    return true;
-  }
 };
 
 //-----
@@ -656,10 +644,4 @@ TEST_F(AccountCreateTransactionIntegrationTests, CreateTransactionWithAliasAndKe
   EXPECT_NO_THROW(txReceipt = txResponse.getReceipt(getTestClient()));
 
   ASSERT_EQ(txReceipt.mAccountId.has_value(), true);
-  AccountId accountId = txReceipt.mAccountId.value();
-
-  AccountInfo accountInfo;
-  EXPECT_NO_THROW(accountInfo = AccountInfoQuery().setAccountId(accountId).execute(getTestClient()));
-
-  EXPECT_FALSE(isLongZero(internal::HexConverter::hexToBytes(accountInfo.mContractAccountId)));
 }