diff --git a/apps/explorer/src/app/components/links/external-explorer-link/external-chain-icon.tsx b/apps/explorer/src/app/components/links/external-explorer-link/external-chain-icon.tsx
new file mode 100644
index 000000000..27f86d034
--- /dev/null
+++ b/apps/explorer/src/app/components/links/external-explorer-link/external-chain-icon.tsx
@@ -0,0 +1,34 @@
+import type { ChainIdMapping } from './external-chain';
+import { SUPPORTED_CHAIN_IDS, SUPPORTED_CHAIN_LABELS } from './external-chain';
+
+export const SUPPORTED_CHAIN_ICON_URLS: ChainIdMapping = {
+  '1': '/assets/chain-eth-logo.svg',
+  '100': '/assets/chain-gno-logo.svg',
+  '42161': '/assets/chain-arb-logo.svg',
+  '11155111': '/assets/chain-eth-logo.svg',
+};
+
+export type ExternalChainIconProps = {
+  chainId?: string;
+};
+
+export const ExternalChainIcon = ({
+  // If chainID is not provided, default to a non-existent chain
+  chainId = '-1',
+}: ExternalChainIconProps) => {
+  if (SUPPORTED_CHAIN_IDS.includes(chainId)) {
+    const url = SUPPORTED_CHAIN_ICON_URLS[chainId];
+    const alt = SUPPORTED_CHAIN_LABELS[chainId];
+
+    return (
+      <img
+        src={url}
+        className="inline-block w-4 h-4 mr-1 dark:invert"
+        alt={alt}
+        title={alt}
+      />
+    );
+  } else {
+    return null;
+  }
+};
diff --git a/apps/explorer/src/app/components/links/external-explorer-link/external-chain.ts b/apps/explorer/src/app/components/links/external-explorer-link/external-chain.ts
new file mode 100644
index 000000000..6a0a77ac1
--- /dev/null
+++ b/apps/explorer/src/app/components/links/external-explorer-link/external-chain.ts
@@ -0,0 +1,38 @@
+export type ChainIdMapping = {
+  [K in typeof SUPPORTED_CHAIN_IDS[number]]: string;
+};
+export const SUPPORTED_CHAIN_IDS: string[] = ['1', '100', '42161', '11155111'];
+
+export const SUPPORTED_CHAIN_LABELS: ChainIdMapping = {
+  '1': 'Ethereum',
+  '100': 'Gnosis',
+  '42161': 'Arbitrum',
+  '11155111': 'Sepolia',
+};
+
+export function getExternalExplorerLink(chainId: string, type: string) {
+  if (SUPPORTED_CHAIN_IDS.includes(chainId)) {
+    switch (chainId) {
+      case '1':
+        return 'https://etherscan.io';
+      case '100':
+        return 'https://gnosisscan.io';
+      case '42161':
+        return 'https://arbiscan.io';
+      case '11155111':
+        return 'https://sepolia.etherscan.io';
+      default:
+        return '#';
+    }
+  } else {
+    return '#';
+  }
+}
+
+export function getExternalChainLabel(chainId?: string) {
+  if (chainId && SUPPORTED_CHAIN_IDS.includes(chainId)) {
+    return SUPPORTED_CHAIN_LABELS[chainId];
+  } else {
+    return 'Custom Chain';
+  }
+}
diff --git a/apps/explorer/src/app/components/links/external-explorer-link/external-explorer-link.tsx b/apps/explorer/src/app/components/links/external-explorer-link/external-explorer-link.tsx
index 040d55ec4..29b0e54b6 100644
--- a/apps/explorer/src/app/components/links/external-explorer-link/external-explorer-link.tsx
+++ b/apps/explorer/src/app/components/links/external-explorer-link/external-explorer-link.tsx
@@ -1,4 +1,6 @@
 import Hash from '../hash';
+import { getExternalExplorerLink } from './external-chain';
+import { ExternalChainIcon } from './external-chain-icon';
 
 export enum EthExplorerLinkTypes {
   block = 'block',
@@ -9,6 +11,7 @@ export enum EthExplorerLinkTypes {
 export type ExternalExplorerLinkProps = Partial<typeof HTMLAnchorElement> & {
   id: string;
   type: EthExplorerLinkTypes;
+  // Defaults to Ethereum Mainnet, as chain support was added late
   chain?: string;
   code?: boolean;
 };
@@ -36,74 +39,3 @@ export const ExternalExplorerLink = ({
     </a>
   );
 };
-
-export const SUPPORTED_CHAIN_IDS: string[] = ['1', '100', '42161', '11155111'];
-
-type ChainIdMapping = {
-  [K in typeof SUPPORTED_CHAIN_IDS[number]]: string;
-};
-
-export const SUPPORTED_CHAIN_LABELS: ChainIdMapping = {
-  '1': 'Ethereum',
-  '100': 'Gnosis',
-  '42161': 'Arbitrum',
-  '11155111': 'Sepolia',
-};
-
-export const SUPPORTED_CHAIN_ICON_URLS: ChainIdMapping = {
-  '1': '/assets/chain-eth-logo.svg',
-  '100': '/assets/chain-gno-logo.svg',
-  '42161': '/assets/chain-arb-logo.svg',
-  '11155111': '/assets/chain-eth-logo.svg',
-};
-
-export function getExternalExplorerLink(chainId: string, type: string) {
-  if (SUPPORTED_CHAIN_IDS.includes(chainId)) {
-    switch (chainId) {
-      case '1':
-        return 'https://etherscan.io';
-      case '100':
-        return 'https://gnosisscan.io';
-      case '42161':
-        return 'https://arbiscan.io';
-      case '11155111':
-        return 'https://sepolia.etherscan.io';
-      default:
-        return '#';
-    }
-  } else {
-    return '#';
-  }
-}
-
-export function getExternalChainLabel(chainId?: string) {
-  if (chainId && SUPPORTED_CHAIN_IDS.includes(chainId)) {
-    return SUPPORTED_CHAIN_LABELS[chainId];
-  } else {
-    return 'Custom Chain';
-  }
-}
-
-type ExternalChainIconProps = {
-  chainId?: string;
-};
-
-export const ExternalChainIcon = ({
-  chainId = '-1',
-}: ExternalChainIconProps) => {
-  if (SUPPORTED_CHAIN_IDS.includes(chainId)) {
-    const url = SUPPORTED_CHAIN_ICON_URLS[chainId];
-    const alt = SUPPORTED_CHAIN_LABELS[chainId];
-
-    return (
-      <img
-        src={url}
-        className="inline-block w-4 h-4 mr-1 dark:invert"
-        alt={alt}
-        title={alt}
-      />
-    );
-  } else {
-    return null;
-  }
-};
diff --git a/apps/explorer/src/app/components/txs/details/chain-events/tx-contract-call.tsx b/apps/explorer/src/app/components/txs/details/chain-events/tx-contract-call.tsx
index b1cfc4717..2b7fc7927 100644
--- a/apps/explorer/src/app/components/txs/details/chain-events/tx-contract-call.tsx
+++ b/apps/explorer/src/app/components/txs/details/chain-events/tx-contract-call.tsx
@@ -3,8 +3,8 @@ import { t } from '@vegaprotocol/i18n';
 import {
   ExternalExplorerLink,
   EthExplorerLinkTypes,
-  getExternalChainLabel,
 } from '../../../links/external-explorer-link/external-explorer-link';
+import { getExternalChainLabel } from '../../../links/external-explorer-link/external-chain';
 import type { components } from '../../../../../types/explorer';
 import { defaultAbiCoder, base64 } from 'ethers/lib/utils';
 import { BigNumber } from 'ethers';
diff --git a/apps/explorer/src/app/components/txs/tx-order-type.tsx b/apps/explorer/src/app/components/txs/tx-order-type.tsx
index 8d300d426..239c55de1 100644
--- a/apps/explorer/src/app/components/txs/tx-order-type.tsx
+++ b/apps/explorer/src/app/components/txs/tx-order-type.tsx
@@ -1,7 +1,7 @@
 import { t } from '@vegaprotocol/i18n';
 import type { components } from '../../../types/explorer';
 import { VoteIcon } from '../vote-icon/vote-icon';
-import { ExternalChainIcon } from '../links/external-explorer-link/external-explorer-link';
+import { ExternalChainIcon } from '../links/external-explorer-link/external-chain-icon';
 
 interface TxOrderTypeProps {
   orderType: string;
diff --git a/apps/explorer/src/app/routes/oracles/components/oracle-eth-source.tsx b/apps/explorer/src/app/routes/oracles/components/oracle-eth-source.tsx
index b1154415b..30cb7e06b 100644
--- a/apps/explorer/src/app/routes/oracles/components/oracle-eth-source.tsx
+++ b/apps/explorer/src/app/routes/oracles/components/oracle-eth-source.tsx
@@ -3,8 +3,8 @@ import type { SourceType } from './oracle';
 import {
   ExternalExplorerLink,
   EthExplorerLinkTypes,
-  getExternalChainLabel,
 } from '../../../components/links/external-explorer-link/external-explorer-link';
+import { getExternalChainLabel } from '../../../components/links/external-explorer-link/external-chain';
 import { t } from 'i18next';
 
 interface OracleDetailsEthSourceProps {