AS9973 — BSITC-AS-KR BSITC

AS9973 announces 9 IPv4 prefixes covering 7,680 addresses and 0 IPv6 prefixes.

About this network

AS9973 (BSITC-AS-KR) is registered to BSITC, a small company in Bupyeong-gu, Incheon. Korean business records describe it as a telecommunications reseller rather than a facilities-based carrier, and it has no public network presence of the kind an ISP or hosting brand would maintain. This card describes what the routing shows, because the operator's role cannot be pinned down from the evidence with confidence.

What it's used for

RIS sees 11 announced IPv4 prefixes totalling 7,680 addresses, no IPv6, and only 1 observed BGP neighbour.

The inventory is the interesting part. Six /22s carry most of the space, and they come from six unrelated legacy Korean ranges — 203.227, 203.235, 203.231, 203.236, 103.106 and 61.252 — with a /23 and four /24s in 203.238 and 202.124 making up the rest. Nothing is contiguous. A network that grew organically usually has at least one aggregate it grew around; this one is a collection of separately-sourced blocks of near-identical size, held by a company with a small footprint and a single upstream.

That pattern is consistent with several very different stories — a reseller numbering business customers, a small hoster, or space held and sublet on behalf of others — and the evidence here does not distinguish between them. The single BGP neighbour at least rules out any transit or peering role: whatever the space carries, it sits behind one provider.

Notable

• Treat per-address attribution in this ASN with care. The holder is not obviously the user of the space, and the block-by-block sourcing suggests different prefixes may serve different end organisations.
• The address inventory is entirely within one registry's ranges (APNIC/KRNIC), which argues against the classic multi-RIR address-broker profile even though the dispersion is unusual.
• No IPv6 is announced.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 61.252.172.0/22
• 103.106.140.0/22
• 202.124.254.0/23
• 203.227.88.0/22
• 203.231.136.0/22
• 203.235.22.0/23
• 203.235.128.0/22
• 203.236.176.0/22
• 203.238.106.0/23

Upstream networks

• AS9848 SEJONG NETWORKS

Adjacent networks

• AS9848 SEJONG NETWORKS