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Internet Routing

Why Does My ISP Route Traffic Through Another Country?

The Internet chooses network paths—not necessarily the shortest route on a map.

Many people run a traceroute and notice that their traffic passes through Singapore, Hong Kong, Japan, the United States, or another country before reaching its destination. This often looks like a detour, but in many cases it is simply how the global Internet is designed to operate.

Short Answer

Your ISP selects routes based on network connectivity rather than geographical distance.

Routing decisions usually consider capacity, peering relationships, network policies and overall stability.

As a result, Internet traffic passing through another country is completely normal.

How Does an ISP Choose a Route?

ISPs evaluate many factors when selecting a path, including:

  • Peering agreements.
  • Transit providers.
  • Network congestion.
  • Available capacity.
  • Operating costs.
  • BGP routing policies.

Because of these factors, the chosen route is not always the geographically shortest one.

Why Does Traffic Often Pass Through Major Internet Hubs?

Many international connections pass through large Internet Exchange (IX) locations such as:

  • Singapore.
  • Hong Kong.
  • Tokyo.
  • Los Angeles.
  • Frankfurt.
  • Amsterdam.

These cities host major interconnection facilities where networks exchange traffic efficiently.

The Shortest Distance Is Not Always the Fastest Route

Internet routing is not based solely on geography.

For example:

Japan → Singapore → Malaysia

may sometimes perform better than:

Japan → Malaysia

depending on available network paths, congestion and peering arrangements.

The quality of the complete route matters more than the number of countries involved.

Why Does Traceroute Sometimes Look Strange?

Traceroute displays responding routers—not physical fiber cables.

It cannot show:

  • The exact submarine cable route.
  • The physical cable length.
  • Every intermediate switching device.

Some routers also choose not to respond to traceroute, so the displayed path may not represent every part of the actual network route.

Can a VPN Change the Route?

Yes.

Without a VPN, your ISP normally determines the path your traffic follows.

With a VPN, traffic first travels to the VPN server, after which the VPN provider determines the remaining route.

This is why traceroute results can change dramatically when a VPN is enabled.

Can the Route Change During the Day?

Yes.

ISPs may adjust routes because of:

  • Scheduled maintenance.
  • Temporary failures.
  • Network congestion.
  • BGP routing updates.

As a result, the same destination may follow different paths at different times.

Is Routing Through Another Country Bad?

Not necessarily.

In many situations it can actually:

  • Reduce congestion.
  • Improve stability.
  • Provide better international connectivity.

In other situations, it may increase latency.

The overall performance depends on the complete network path rather than simply the countries shown in a traceroute.

Can Users Change the Route?

Most users cannot directly control their ISP's routing decisions.

However, the route may change by:

  • Using a different ISP.
  • Connecting through a VPN.
  • Using a dedicated routing service.
  • Selecting another server region.

These options may influence which network path your traffic ultimately follows.

Haipaida's Perspective

The Internet is designed to find a reliable working path—not necessarily the geographically shortest one.

Seeing another country appear in a traceroute does not automatically mean your ISP is taking an inefficient route or that something is wrong.

The factors that matter most are end-to-end latency, packet loss, congestion and overall connection stability—not simply how many countries your traffic passes through.

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