CN2 GIA Explained: Why It Costs More and Why It's 10x Faster

You have probably heard us talk about "CN2 GIA" — the premium network that makes Overwall fast. But what does that actually mean? Why is it faster? And why does it cost so much?

1. The "Internet Highway" Analogy

All international internet traffic leaving China travels through physical fiber-optic cables owned by three state carriers: China Telecom, China Unicom, and China Mobile. China Telecom is the largest and offers multiple tiers of service.

Think of it like a highway system:

• 163 (ChinaNet): The public 10-lane highway. It's cheap. But at 8 PM, it's a parking lot. Everyone (1 billion people) is on it. Packet loss routinely reaches 20–30%.
• CN2 GT: The "HOV Lane." Slightly better, but still gets clogged near the exits. Becoming congested since 2019.
• CN2 GIA (Global Internet Access): The private, VIP toll road built next to the highway. Only banks, governments, and Overwall use it. It is practically empty.

2. The Cost Reality

Bandwidth in China is the most expensive in the world. CN2 GIA IP transit costs over $100 per Mbps per month. A 1 Gbps port can cost upward of $100,000/month.

The math is simple: Cheap VPNs ($10/mo) physically cannot afford CN2 GIA. If you are paying $10, you are on the 163 highway. Period.

Overwall pays the premium so your data takes the fast lane. That cost is reflected in the $47/mo price — and it's why you get 100–300 Mbps while every traditional VPN is stuck at 2–10 Mbps on the same congested public cables.

3. Performance Metrics

4. Why Overwall Uses CN2 GIA

We prioritize business continuity. CN2 GIA capacity is extremely limited and hard to obtain even at full price. You need a commercial IP transit agreement with China Telecom directly, a registered entity, a minimum commitment, and months of procurement.

Overwall maintains dedicated infrastructure on this network so you don't have to. When you connect, you share a private commercial cable with a small number of users—not millions—which is why the speed holds at peak hours.

5. Is It Worth It?

If you value your time at more than $2/hour, yes. One missed Zoom call, one failed file upload, one evening of buffering Netflix — and you've already "lost" more than the monthly cost of Overwall.

Quality has a price. CN2 GIA is that price. And Overwall is how you access it.

See which providers use CN2 GIA in our Best VPN for China 2026 comparison — with real speed tests from inside China.

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