Autonomous system
AS9525 DBFI-AS DB Securities Co.,Ltd.
Unclassified RIPE
Summary
DB Securities
enterprise legacy
AS9525 (DBFI-AS) is held by DB Securities Co., Ltd., a Seoul-based Korean brokerage and investment bank belonging to the DB Group. The firm traded as Dongbu Securities before the group rebranded to DB, and more recently as DB Financial Investment — the DBFI handle preserves that intermediate name.
What it's used for
A single-prefix corporate edge. RIS sees exactly 1 IPv4 prefix — 128.134.127.0/24, 256 addresses — no IPv6, and 1 observed neighbour. There is no ambiguity in that shape: one /24 behind one upstream is the internet-facing boundary of a financial firm, sized for public web and trading front ends and remote access. Everything that matters to a brokerage — order routing to the exchange, market-data feeds, back-office systems — runs on private circuits and internal address space, never on the routed /24.
The prefix itself is worth a second look: 128.134.0.0/16 is legacy class-B space long associated with Korean networks, and this /24 is a slice of it. Holding a piece of that range, plus a low four-digit AS number, means the firm has been multihomed in its own right since the early days of Korean commercial internet, even though the routed footprint has never needed to grow.
Notable
- The registry handle, the company name and the group brand all disagree with each other by a generation — a normal outcome for a long-lived registration through repeated corporate rebranding.
- One prefix, one neighbour, no IPv6: about as small as a routed enterprise presence gets while still justifying an AS number at all.
- The AS exists for address portability and multihoming capability rather than for scale.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS9526 | KOSCOM | 62 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-21, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 256 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| KR | Korea, Republic of | 1 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS9525- Registry name
- DBFI-AS-KR
- Abuse contact
- hostmaster@nic.or.kr
- Registered
- 1999-05-13
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 1 with no ROA
- ROAs
- 0 authorising AS9525
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 3 naming AS9525
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,779 prefixes, as published 2026-10-22. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere