diff --git a/client/rpc-core/src/types/block_number.rs b/client/rpc-core/src/types/block_number.rs
index 986bbafe2d..1ece65e96f 100644
--- a/client/rpc-core/src/types/block_number.rs
+++ b/client/rpc-core/src/types/block_number.rs
@@ -63,6 +63,7 @@ impl BlockNumber {
 	pub fn to_min_block_num(&self) -> Option<u64> {
 		match *self {
 			BlockNumber::Num(ref x) => Some(*x),
+			BlockNumber::Earliest => Some(0),
 			_ => None,
 		}
 	}
@@ -193,6 +194,9 @@ mod tests {
 	fn match_block_number(block_number: BlockNumber) -> Option<u64> {
 		match block_number {
 			BlockNumber::Num(number) => Some(number),
+			BlockNumber::Earliest => Some(0),
+			BlockNumber::Latest => Some(1000),
+			BlockNumber::Pending => Some(1001),
 			_ => None,
 		}
 	}
@@ -202,9 +206,15 @@ mod tests {
 		let bn_dec: BlockNumber = serde_json::from_str(r#""42""#).unwrap();
 		let bn_hex: BlockNumber = serde_json::from_str(r#""0x45""#).unwrap();
 		let bn_u64: BlockNumber = serde_json::from_str(r#"420"#).unwrap();
+		let bn_tag_earliest: BlockNumber = serde_json::from_str(r#""earliest""#).unwrap();
+		let bn_tag_latest: BlockNumber = serde_json::from_str(r#""latest""#).unwrap();
+		let bn_tag_pending: BlockNumber = serde_json::from_str(r#""pending""#).unwrap();
 
 		assert_eq!(match_block_number(bn_dec).unwrap(), 42);
 		assert_eq!(match_block_number(bn_hex).unwrap(), 69);
 		assert_eq!(match_block_number(bn_u64).unwrap(), 420);
+		assert_eq!(match_block_number(bn_tag_earliest).unwrap(), 0);
+		assert_eq!(match_block_number(bn_tag_latest).unwrap(), 1000);
+		assert_eq!(match_block_number(bn_tag_pending).unwrap(), 1001);
 	}
 }
diff --git a/ts-tests/tests/test-log-tags.ts b/ts-tests/tests/test-log-tags.ts
new file mode 100644
index 0000000000..94f7f3203e
--- /dev/null
+++ b/ts-tests/tests/test-log-tags.ts
@@ -0,0 +1,57 @@
+import { expect } from "chai";
+import { step } from "mocha-steps";
+import { TransactionReceipt } from "web3-core";
+
+import { GENESIS_ACCOUNT, GENESIS_ACCOUNT_PRIVATE_KEY } from "./config";
+import { createAndFinalizeBlock, describeWithFrontier, customRequest } from "./util";
+
+describeWithFrontier("Frontier RPC (Log BlockNumber tags)", (context) => {
+	const TEST_CONTRACT_BYTECODE =
+		"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";
+
+	const EXPECTED_LOGS = 3;
+
+	async function sendTransaction(context) {
+		const tx = await context.web3.eth.accounts.signTransaction(
+			{
+				from: GENESIS_ACCOUNT,
+				data: TEST_CONTRACT_BYTECODE,
+				value: "0x00",
+				gasPrice: "0x3B9ACA00",
+				gas: "0x100000",
+			},
+			GENESIS_ACCOUNT_PRIVATE_KEY
+		);
+
+		await customRequest(context.web3, "eth_sendRawTransaction", [tx.rawTransaction]);
+		return tx;
+	}
+
+	before("Send some transactions across blocks", async function () {
+		for (var i = 0; i < EXPECTED_LOGS; i++) {
+			await sendTransaction(context);
+			await createAndFinalizeBlock(context.web3);
+		}
+	});
+
+	step("EthFilterApi::getFilterLogs - should handle earliest and latest tags", async function () {
+		let createFilter = await customRequest(context.web3, "eth_newFilter", [
+			{
+				fromBlock: "earliest",
+				toBlock: "latest",
+			},
+		]);
+		let poll = await customRequest(context.web3, "eth_getFilterLogs", [createFilter.result]);
+		expect(poll.result.length).to.be.eq(EXPECTED_LOGS);
+	});
+
+	step("EthApi::getLogs - should handle earliest and latest tags", async function () {
+		let request = await customRequest(context.web3, "eth_getLogs", [
+			{
+				fromBlock: "earliest",
+				toBlock: "latest",
+			},
+		]);
+		expect(request.result.length).to.be.eq(EXPECTED_LOGS);
+	});
+});