Autonomous system
AS9466 UUNET-JP-AP UUNET Japan Limited
Unclassified APNIC
Summary
Verizon Japan (formerly UUNET Japan)
isp enterprise transit legacy
AS9466 (UUNET-JP-AP) is the Japanese network of what is now Verizon Japan Limited. The handle preserves its origin: UUNET Japan was the local arm of UUNET, the pioneering commercial internet provider that passed through MCI WorldCom and ultimately into Verizon Business. Registry and lookup sources now show the organisation as Verizon Japan Limited even though the APNIC as-name was never changed.
What it's used for
RIS observes 22 IPv4 prefixes totalling about 84,000 addresses, 2 IPv6 prefixes (2401:6bff::/40 and 2401:6bff:8000::/40), and only 3 BGP neighbours.
That neighbour count is the key to reading this network. Eighty-four thousand addresses is real scale, but three peers is not a carrier's peering footprint. This is a regional arm attached to a global backbone: it takes transit from Verizon's own Asia-Pacific network and interconnects with a small number of Japanese providers, rather than building an independent peering edge of its own. What it serves is Verizon Business's enterprise customers in Japan — corporate IP connectivity, managed services and the address space assigned to them — not a retail eyeball base.
The prefix list supports that. Alongside a legacy 138.198.0.0/16 there is a long tail of /19s, /21s, /22s and many /24s spread across 202.x, 203.x and a scattering of newer ranges. Sub-/24 fragmentation across many unrelated blocks is what an enterprise service provider's inventory looks like: each customer site or service gets its own small assignment out of whatever space was available at the time.
Notable
- The
138.198.0.0/16is classic UUNET-era space and by far the largest single block the AS originates. - The AS name is a fossil. "UUNET" as an operating brand has not existed for many years; the network behind this number is Verizon's.
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.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 30 prefixes · 82.94K addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 32 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS9466- Registry name
- UUNET-JP-AP
- Registrant
- Verizon Japan Limited
- Abuse contact
- abuse@verizon.com
- Registered
- 2008-09-04
- Last changed
- 2020-05-27
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 70% valid · 16 valid, 7 with no ROA
- ROAs
- 16 authorising AS9466
- ASPA
- no ASPA record
- IRR
- 87% registered · 20 of 23 announcements 1 other origin
- Route objects
- 22 naming AS9466
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 1,772 prefixes, as published 2026-10-15. 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