Studying in Korea? Here's why KT's Welcome 5G plan is worth a look
Studying in Korea? Getting a phone plan sorted before you leave is one less thing to worry about. KT Japan's Welcome 5G plan is built for exactly this.
Why Welcome 5G works for students
No contract, no cancellation fees
Sign up for as long as you need. Cancel anytime with zero penalties, whether you're staying one semester or two years.
Unlimited data (1Mbps–5Mbps)
Once you use up your base data, speeds drop but data stays unlimited. You can still stream, browse, and use social media without hitting a wall.
Free international calls (001 Free)
Every plan includes 001 Free, an international calling add-on normally worth 5,500 KRW/month. Call 38 countries, including Japan, from your 200 base minutes.
Pricing Plans (Monthly)
| Plan | Monthly Fee | Data | Launch Promotion |
|---|---|---|---|
| Welcome 1 | 39,000 KRW | 1GB + Unlimited at 1Mbps | Speed upgrade: 1Mbps → 3Mbps |
| Welcome 3 | 49,000 KRW | 3GB + Unlimited at 3Mbps | Speed upgrade: 3Mbps → 5Mbps |
| Welcome 5 | 59,000 KRW | 5GB + Unlimited at 5Mbps | +20GB bonus (25GB/month total) |
infoAll plans include 200 min of voice and 200 SMS. International calls use your base minutes (calls to Japan count at 2x). Launch promotion runs May 1, 2025 – June 30, 2026.
The real selling point: sign up from Japan, no registration card needed
You only need your passport and proof of enrollment.
KT Japan is KT's subsidiary in Japan. Through KT Japan, you can sign up with just a passport and enrollment documents. No alien registration card. When your card is issued later, update your details and keep using the same plan.
- checkThe only way to do this from Japan: About 10 stores in Korea can handle sign-ups without a registration card. KT Japan is the only option that lets you do it from Japan before you leave.
- checkKorean number ready when you land: Set everything up before your flight. When you arrive in Korea, you can activate your Korean phone number from KT Japan's dedicated online channel.