Gudeok-ro 321beon-gil, Seodaesin-dong 3(sam)-ga, Seo-gu postal codes (30)
On Gudeok-ro 321beon-gil in Seodaesin-dong 3(sam)-ga, Seo-gu the postal code depends on the building number: numbers 8–24 use 49226, numbers 30–78-1 use 49225. Data as of August 2026.
| Address | Postal code | Building |
|---|---|---|
| Gudeok-ro 321beon-gil 8 | 49226 | |
| Gudeok-ro 321beon-gil 8-5 | 49226 | |
| Gudeok-ro 321beon-gil 8-7 | 49226 | |
| Gudeok-ro 321beon-gil 10 | 49226 | |
| Gudeok-ro 321beon-gil 14 | 49226 | |
| Gudeok-ro 321beon-gil 16-7 | 49226 | |
| Gudeok-ro 321beon-gil 16-8 | 49226 | 정호빌라 |
| Gudeok-ro 321beon-gil 18 | 49226 | |
| Gudeok-ro 321beon-gil 22 | 49226 | 대윤스위트빌라 |
| Gudeok-ro 321beon-gil 24 | 49226 | 오션스타 |
| Gudeok-ro 321beon-gil 30 | 49225 | |
| Gudeok-ro 321beon-gil 32 | 49225 | |
| Gudeok-ro 321beon-gil 36 | 49225 | |
| Gudeok-ro 321beon-gil 38 | 49225 | |
| Gudeok-ro 321beon-gil 40 | 49225 | |
| Gudeok-ro 321beon-gil 44 | 49225 | |
| Gudeok-ro 321beon-gil 44-1 | 49225 | |
| Gudeok-ro 321beon-gil 50 | 49225 | 도영빌리지 |
| Gudeok-ro 321beon-gil 58 | 49225 | |
| Gudeok-ro 321beon-gil 62-4 | 49225 | |
| Gudeok-ro 321beon-gil 62-8 | 49225 | |
| Gudeok-ro 321beon-gil 62-12 | 49225 | |
| Gudeok-ro 321beon-gil 64 | 49225 | |
| Gudeok-ro 321beon-gil 66 | 49225 | |
| Gudeok-ro 321beon-gil 68 | 49225 | |
| Gudeok-ro 321beon-gil 70 | 49225 | |
| Gudeok-ro 321beon-gil 72 | 49225 | |
| Gudeok-ro 321beon-gil 72-1 | 49225 | |
| Gudeok-ro 321beon-gil 78 | 49225 | |
| Gudeok-ro 321beon-gil 78-1 | 49225 |