Autonomous system
AS23575 SKB-GOV-KR SK Broadband Co Ltd
Unclassified APNIC
Summary
SK Broadband
broadband residential korea isp
The AS handle SKB-GOV-KR is held by SK Broadband Co Ltd.
What it's used for
- The address space carries residential broadband traffic, indicated by the consistent netname
broadNnet-KRacross all sampled prefixes. - With 44,544 IPv4 addresses announced across 25 prefixes and only 7 observed neighbours, the high address-to-neighbour ratio implies this is an access or eyeball network rather than a transit provider.
Notable
- All registrants in the RDAP sample are listed as
IRT-KRNIC-KR, which aligns with the announcer's identity as a major South Korean telecommunications operator. - The inventory consists entirely of IPv4 space, with no IPv6 prefixes announced, and is concentrated in the 125.61.0.0/16 and 175.122.0.0/16 ranges.
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, 6 downstream and 7 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS17841 | NATIONAL INFORMATION RESOURCES SERVICE | 934 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 25 prefixes · 44.80K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| KR | Korea, Republic of | 25 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS23575- Registry name
- SKB-GOV-KR-KR
- Abuse contact
- hostmaster@nic.or.kr
- Registered
- 2002-12-24
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 19 with no ROA
- ROAs
- 0 authorising AS23575
- ASPA
- no ASPA record
- IRR
- 95% registered · 18 of 19 announcements
- Route objects
- 38 naming AS23575
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 1,773 prefixes, as published 2026-10-13. 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