Autonomous system
AS4685 ASAHI-NET Asahi Net
Residential ARIN
Summary
Asahi Net, Inc.
isp legacy
ASAHI-NET — Asahi Net, Inc., a long-running Japanese internet service provider serving consumers and businesses nationwide.
What it's used for
- Fixed broadband internet access — fibre and, historically, ADSL — for Japanese households and small businesses, plus mobile data as an MVNO.
Notable
- A classic eyeball network: most addresses here terminate at subscriber homes, so an IP in this space is a residential user far more often than a server.
- Asahi Net rides on NTT's FLET'S fibre access and on NTT DoCoMo's radio network for its mobile service, rather than owning last-mile infrastructure itself.
Interesting
- The company began in 1990 as a PC-communication (dial-up BBS) service and moved to internet access in 1994 — one of the Japanese providers that made the jump from the pre-web online-service era. It has been publicly listed in Tokyo since 2007.
- Asahi Net is one of the few Japanese ISPs to offer English-language support, which makes it a common pick for foreign residents.
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 6 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| BroadBand Internet eXchange Tokyo | Tokyo, Japan | 101.203.88.183 |
| JPIX Tokyo | Tokyo, Japan | 210.171.224.125 |
| BroadBand Internet eXchange Osaka | Osaka, Japan | 218.100.9.36 |
| Equinix Internet Exchange Tokyo | Tokyo, Japan | 203.190.230.27 |
| JPIX Osaka | Osaka, Japan | 103.246.232.163 |
| Network Service Provider IXP (Distributed IX in Edo) | Tokyo, Japan | 202.249.2.104 |
Transit providers
11 upstream, 0 downstream and 14 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS2914 | NTT America, Inc. | 1,351 |
| AS2519 | ARTERIA Networks Corporation | 871 |
| AS6939 | Hurricane Electric LLC | 682 |
| AS2497 | Internet Initiative Japan Inc. | 222 |
| AS2516 | KDDI CORPORATION | 179 |
| AS24482 | SG.GS | 64 |
| AS17639 | Converge ICT Solutions Inc. | 63 |
| AS8966 | EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC | 62 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 60 prefixes · 1.28M addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 62 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS4685- Registry name
- ASAHI-NET
- Registered
- 1995-08-30
- Last changed
- 2010-07-01
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 64 valid, 0 with no ROA
- ROAs
- 64 authorising AS4685
- ASPA
- no ASPA record
- IRR
- 100% registered · 64 of 64 announcements
- Route objects
- 68 naming AS4685
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: 431 networks and 1,768 prefixes, as published 2026-10-12. 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