AS9273 — SICC-AS ITCENENTEC CO.,LTD.
AS9273 announces 4 IPv4 prefixes covering 76,032 addresses and 0 IPv6 prefixes.
About this network
AS9273 (SICC-AS) is held by ITCEN ENTEC Co., Ltd., a Korean systems-integration and IT-services company. The handle preserves the network's older identity: SICC is Ssangyong Information & Communication Corp, the long-running SI firm that was absorbed into the ITCEN group and renamed ITCEN ENTEC in December 2024. This is an IT services house that happens to hold carrier-era address space, not a service provider network.
What it's used for
The routing footprint is unusual in shape. AS9273 announces only four IPv4 prefixes but they cover roughly 76,032 addresses, because one of them is a legacy /16: 203.224.0.0/16. The rest is 203.244.0.0/19, 203.255.240.0/21 and a single 121.138.156.0/24. Just two BGP neighbours are observed. Four prefixes, two upstreams and a very large block is the classic profile of an end-site holder of legacy space, not of a network that sells connectivity — a transit provider would deaggregate for customers and peer widely, and an eyeball ISP would show far more routes. The address space is presumably used across the company's own systems-integration, managed-operations and data-centre work, which is what ITCEN ENTEC's business consists of: building and running information systems for Korean public institutions, education bodies, defence and financial clients.
Notable
- The /16 is legacy KRNIC-era space, allocated when the holder was a much bigger telecom-adjacent player; the small prefix count today shows the network was never re-purposed into a commercial ISP.
- The name on the handle is a trap: SICC does not correspond to any organisation currently trading under that name, and the modern operator's brand (ITCEN) appears nowhere in the registry object.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 121.138.156.0/24
- 203.224.0.0/16
- 203.244.0.0/19
- 203.255.240.0/21
Upstream networks
Adjacent networks
Routing security
- RPKI: 0 valid, 0 invalid and 4 not-found announcements; 0 ROAs.
- ASPA: none published.
- IRR: 75% of announcements registered; 3 route objects.
- Listed in as-sets: AS-DACOM, AS-HURRICANE, AS-KDDDMPEER, AS-KORNETBGP, AS-XO-B.
awaiting query
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