Autonomous system
AS4725 ODN SoftBank Corp.
Residential RIPE
Summary
ODN (SoftBank)
isp residential eyeball dsl
ODN ("Open Data Network", INFOSPHERE/odn.ad.jp) is a long-running Japanese consumer ISP now operated by SoftBank Corp., inherited from the former Japan Telecom.
What it's used for
- Residential and small-business internet access in Japan (DSL and fibre), one of SoftBank's fixed-line consumer brands.
Notable
- An "eyeball" network: addresses here are home connections in Japan, not servers.
- Part of SoftBank's fixed-line portfolio; SoftBank also runs mobile and other fixed broadband networks under separate ASNs.
Interesting
- The
odn.ad.jpdomain dates to the early Japanese dial-up/DSL era, when Open Data Network was one of the country's better-known consumer providers.
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 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Network Service Provider IXP (Distributed IX in Edo) | Tokyo, Japan | 202.249.2.118 |
Transit providers
1 upstream, 10 downstream and 15 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS17676 | SoftBank Corp. | 7,920 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 165 prefixes · 1.92M addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 166 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS4725- Registry name
- ODN
- Registered
- 1995-08-30
- Last changed
- 2022-06-13
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0.7% valid · 1 valid, 136 with no ROA
- ROAs
- 1 authorising AS4725
- ASPA
- no ASPA record
- IRR
- 100% registered · 137 of 137 announcements
- Route objects
- 114 naming AS4725
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: 442 networks and 1,784 prefixes, as published 2026-10-19. 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