AS9959 — KOREASTOCKEXCHANGE-AS KOREA STOCK EXCHANGE
AS9959 announces 12 IPv4 prefixes covering 4,608 addresses and 0 IPv6 prefixes.
About this network
AS9959 (KOREASTOCKEXCHANGE-AS-KR) is registered to the Korea Stock Exchange — the institution that, together with the Korea Futures Exchange and KOSDAQ, was consolidated into today's Korea Exchange (KRX), South Korea's sole securities and derivatives exchange operator, headquartered in Busan with market operations in Seoul. The registry handle preserves the pre-merger name.
What it's used for
RIS sees 18 announced IPv4 prefixes totalling 4,608 addresses, no IPv6, and 4 observed BGP neighbours. Every announcement is a /24. That is a deliberate shape for a financial market operator: small, precisely-scoped blocks that can be routed, filtered and moved independently, drawn from several ranges (203.235/16 provides about half of them, with others in 210.206, 210.126, 211.180, 115.22, 106.249 and 210.113).
Four BGP neighbours is more than a plain single-homed enterprise and far fewer than any provider. It fits an organisation that needs resilient, multi-homed reachability — an exchange cannot afford a single upstream failure to isolate its market-data and member-connectivity systems — without having any interest in selling transit or peering broadly. Read the addresses as exchange infrastructure: market data distribution, member/broker connectivity, disclosure and corporate services.
Notable
- KRX operates the Stock Market, KOSDAQ and Derivatives market divisions; addresses here belong to the market operator itself, not to the brokerages that connect to it.
- The exclusively-/24 announcement pattern and multi-homing are typical of financial-sector networks where routing control matters more than table efficiency.
- No IPv6 is announced.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 106.249.45.0/24
- 115.22.32.0/23
- 203.235.0.0/23
- 203.235.2.0/24
- 203.235.4.0/22
- 203.235.9.0/24
- 203.235.10.0/23
- 210.113.148.0/24
- 210.126.140.0/24
- 210.206.131.0/24
- 210.206.132.0/24
- 211.180.155.0/24
Upstream networks
Adjacent networks
Routing security
- RPKI: 0 valid, 0 invalid and 18 not-found announcements; 0 ROAs.
- ASPA: none published.
- IRR: 89% of announcements registered; 20 route objects.
- Listed in as-sets: AS-ANC-CUSTOMER-PROXY-REGISTER, AS-DACOM, AS-HANARO, AS-HURRICANE, AS-IIJ, AS-KDDCUSTOMER2, AS-KORNETBGP, AS-KORNETRE, AS-PACNET-CUSTOMER-PROXY-REGISTER, AS-SEJONG, AS-SHINBIRO, AS-SKBROADBAND, AS-XO-B, AS198949:AS-SD, AS2497:AS-IIJ, AS3491:AS-CUSTOMERS-AP, AS3491:AS-CUSTOMERS-TEST, AS58453:AS-ASIAASCUST, AS58453:AS-ASIAASCUST, AS58453:AS-ASIATEST, AS58453:AS-ASIATEST2, AS63529:AS-63529-AS-IMPORT-AS23764.
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