We’re excited to announce that the USDC Explorer by Range now supports Circle’s Cross-Chain Transfer Protocol v2 (CCTP v2) – in addition to full coverage of CCTP v1.

With this update, users, developers, and compliance teams can now track every cross-chain USDC transfer, regardless of which version of CCTP was used, all from a single interface.

What’s CCTP v2 

Circle’s original CCTP (v1) was a major step forward for cross-chain stablecoin transfers. It enabled USDC to be burned on a source chain and re-minted on a destination chain, removing the need for traditional bridge liquidity and improving native asset guarantees.

However, CCTP v2 is a complete redesign focused on modularity, improved user experience, and speed. Key improvements include:

• Better composability: CCTP v2 introduces a more modular framework that allows for complex flows using Hooks (e.g., mint+swap, mint+call).

• Support for arbitrary contract calls: With the Hooks functionality, developers can create richer dApp interactions tied to USDC transfers.

• Faster transfers: CCTP v2 introduces the ability to perform faster-than-finality transfers, significantly reducing transfer times from minutes to seconds (vs Standard speed which is about 13 to 19 minutes for Ethereum and L2 chains).

You can learn more about CCTP v2 here.

CCTP v2 operates with a distinct set of smart contracts and APIs, which are not backwards compatible with the v1 contracts, and as such, is forming its own distinct network of supported blockchains and ecosystems.

As of today, CCTP v2 is supported by Avalanche, Arbitrum, Base, Ethereum, Linea and Sonic, transfers between which are all tracked on our USDC Explorer.

All CCTP v1 transfers are also fully tracked on Range’s USDC Explorer. V1 is currently used by Aptos, Arbitrum, Avalanche, Base, Ethereum, Noble, OP Mainnet, Polygon PoS, Solana, Sui, and Unichain.

Why we built the USDC Explorer

The crypto landscape is now fundamentally multi-chain first. With apps and users interacting across dozens of chains and rollups, visibility into stablecoin flows, especially USDC, is more important than ever.

However, cross-chain transactions are inherently complex, as wrapped assets, abstracted bridges, relayers, and delayed finality make it difficult to track where value is moving.

USDC is now effectively the default cross-chain settlement layer. Circle's infrastructure, especially with CCTP v2, enables the safe, predictable, and native movement of dollars across chains. As more applications, treasuries, and real-world assets settle onchain, stablecoin transparency and traceability become non-negotiable. 

That’s where USDC Explorer – also known as USDC Trail – comes in. It provides a unified view of every cross-chain transfer of USDC via CCTP (v1 and v2).

We built USDC Explorer to serve multiple audiences:

• Developers debugging USDC flows or building CCTP-powered apps

• Investigators tracing funds across multiple ecosystems

• Compliance teams verifying wallet activity and bridge provenance

• Users who are trying to understand the status of their cross-chain USDC transfer

By acting as an explorer aggregation layer, Range makes USDC movement transparent, regardless of which chain it originates from or ends on. And now, with support for CCTP v2, we’re fully ready for the next generation of cross-chain applications.

Track cross-chain USDC transfers here.