asn.dev

Autonomous system

AS55615 DUZONBIZON-AS-KR DOUZONEBIZON

Unclassified APNIC

IPv4 addresses 27.90K 61 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly KR
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Douzonebizon

Korea, Republic of · AI-generated

korea business ipv4 broadband

The AS handle DUZONBIZON-AS-KR is held by Douzonebizon.

What it's used for

  • The address space carries netnames broadNnet-KR, DOUZONE-KR, and KORNET-KR, indicating a mix of broadband and corporate network segments.
  • The AS announces 27,904 IPv4 addresses across 61 prefixes with only 2 observed neighbours, a ratio that implies an access or edge network rather than a transit provider.
  • Traffic from this AS consists of subscriber broadband connections and business endpoints within the Republic of Korea.

Notable

  • Registrants for the largest prefixes are IRT-KRNIC-KR, which aligns with the Korean NIC registry for the announcer.
  • The inventory is composed entirely of IPv4 space, with no IPv6 prefixes announced.
  • The address inventory is fragmented into numerous /22, /23, and /24 blocks, suggesting a granular allocation strategy for different service tiers or geographic segments.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS4766Korea Telecom5,123
AS9318SK Broadband Co Ltd1,631

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 61 prefixes · 27.90K addresses IPv6 0 prefixes

CountryNamePrefixes
KRKorea, Republic of61

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS55615
Registry name
DUZONBIZON-AS-KR-KR
Abuse contact
hostmaster@nic.or.kr
Registered
2010-07-21
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 109 with no ROA
ROAs
0 authorising AS55615
ASPA
no ASPA record
IRR
100% registered · 109 of 109 announcements
Route objects
110 naming AS55615

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: 431 networks and 1,775 prefixes, as published 2026-10-11. 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

Cross-check