Sejong IX Center
Sejong Telecom, 137, Teheran-ro, Gangnam-gu, Seoul, 06132, KOREA, Seoul, 06132, KR
Carriers on-net
10
Ten networks and the KRIX(SEJONG) exchange sit at 137 Teheran-ro, in the middle of the Gangnam-gu office corridor, and both belong to the same company: Sejong Networks Co., Ltd. runs the building and the exchange inside it, so the interconnection on offer here is the operator's own rather than a neutral meeting point. By Seoul standards that is a small venue - KINX's Dogok site carries 55 networks and three exchanges, and Equinix SL1 carries 23. Sejong Networks keeps a second and quieter site at Dongcheon-dong in Yongin-si, south-east of the capital, with one network attached and no exchange.
Network ecosystem — 10 carriers on-net
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Frequently asked questions
What is the Sejong IX Center in Gangnam?
An interconnection site at 137 Teheran-ro run by Sejong Networks Co., Ltd., hosting ten networks and the KRIX(SEJONG) exchange.
Which company does the Sejong name refer to?
Sejong Networks Co., Ltd., the operator - not Sejong City, which is a separate place, and not the unrelated Sejong Telecom. The building is in Gangnam-gu, Seoul.
How does the Sejong IX Center compare with Seoul's larger interconnection sites?
It carries ten networks against 55 at KINX Dogok and 23 at Equinix SL1, so it is a niche venue rather than a metro hub.
What else does Sejong Networks operate in Korea?
A second facility at 325-230 Dongcheon-dong, Suji-gu, Yongin-si, with a single network and no exchange on site.