Autonomous system
AS18289 TAO_TORONTO AT&T TAO Cloud Access Node
Hosting APNIC
Summary
AT&T Japan K.K.
business cloud att japan
TAO_TORONTO is the AS handle for AT&T Japan K.K., operating as an AT&T TAO Cloud Access Node.
What it's used for
- The space carries AT&T OpenNet AP infrastructure, evidenced by the netname
ATT-OPENNET-APand registrantAT&T Japan K.K. - The AS announces 1024 IPv4 addresses across 1 prefix with 1 observed neighbour, indicating a small, dedicated corporate or cloud access estate rather than a transit or large-scale residential network.
Notable
- The registrant
AT&T Japan K.K.aligns with the AT&T branding in the AS handle and netname. - The address inventory consists of a single /22 block (210.88.188.0/22), representing a compact, contiguous allocation typical of specific service deployments.
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, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS2686 | AT&T Enterprises, LLC | 60 |
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 1 prefixes · 1.02K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 1 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS17653 - AS18431- Registered
- 2016-09-30
- Last changed
- 2019-01-08
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 1 with no ROA
- ROAs
- 0 authorising AS18289
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 1 naming AS18289
Reputation
Classification and threat
Hosting Datacenter or cloud provider. Addresses are servers, not people.
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