Autonomous system
AS59125 CYBERHOME FAMILY NET JAPAN INCORPORATED
Residential ARIN
Summary
Cyberhome
isp residential cable dsl
The AS handle CYBERHOME1 is held by Family Net Japan Incorporated.
What it's used for
- The address space carries residential broadband traffic, evidenced by reverse DNS records pointing to
cyberhome.jpand netnamesCYBERHOMEandFNJ-CIDR-BLK-JP. - The network announces 41,984 IPv4 addresses across 7 prefixes and 17 IPv6 prefixes, while maintaining 29 observed neighbours; this ratio of address volume to peering partners indicates an access network serving end-users rather than a transit provider.
- Traffic from this AS consists of subscriber eyeballs for cable and DSL internet services, as the operator is a regional ISP providing residential connectivity in Japan.
Notable
- All registrants for the announced prefixes are listed as Japan Network Information Center with IRT-JPNIC-JP, which aligns with the announcer's identity as a Japanese ISP.
- The address inventory is composed of multiple /19 and /20 blocks, including ranges in the 150.91, 160.237, 218.223, and 1.21 spaces, reflecting a consolidated estate for the operator's regional footprint.
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
Recorded at 4 exchanges in 3 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| BroadBand Internet eXchange Tokyo | Tokyo, Japan | 101.203.88.176 |
| JPIX Tokyo | Tokyo, Japan | 210.171.225.226 |
| BroadBand Internet eXchange Singapore | Singapore, Singapore | 103.231.152.55 |
| BroadBand Internet eXchange Hong Kong | Hong Kong, China | 103.203.158.55 |
Transit providers
9 upstream, 0 downstream and 11 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 7 prefixes · 41.98K addresses IPv6 17 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 24 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS59125- Registry name
- CYBERHOME1
- Registered
- 2013-09-09
- Last changed
- 2026-01-29
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 19 valid, 0 with no ROA
- ROAs
- 9 authorising AS59125
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 19 announcements
- Route objects
- 0 naming AS59125
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
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: 445 networks and 1,817 prefixes, as published 2026-10-27. 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