Autonomous system
AS38639 HANABI NTT DOCOMO BUSINESS, Inc.
Unclassified ARIN
Summary
NTT DOCOMO BUSINESS
business telecom japan
HANABI is operated by NTT DOCOMO BUSINESS, Inc.
What it's used for
- The address space carries corporate and business telecommunications infrastructure, with netnames including
NTTECL-JP,NTT-C, andIAC-CIDR-BLK-JP. - The AS announces 13,312 IPv4 addresses across 7 prefixes and 30 IPv6 prefixes, maintaining 11 observed neighbours.
- Traffic from this AS consists of business data communication, long-distance calls, and international connectivity services provided to corporate clients.
Notable
- Registrants include Nippon Telegraph and Telephone Corporation and the Japan Network Information Center, aligning with the NTT corporate family.
- NTT DOCOMO BUSINESS, Inc. was previously known as NTT Communications Corporation.
- The inventory includes a large /19 block and several smaller /22 to /24 blocks, alongside a subdivided IPv6 estate under
2402:c800::/33.
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
7 upstream, 0 downstream and 13 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 2026-10-17, 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 · 13.31K addresses IPv6 30 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 37 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS38639- Registry name
- HANABI
- Registered
- 2007-08-20
- Last changed
- 2025-07-11
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 7 valid, 0 with no ROA
- ROAs
- 11 authorising AS38639
- ASPA
- no ASPA record
- IRR
- 100% registered · 7 of 7 announcements
- Route objects
- 10 naming AS38639
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 1,783 prefixes, as published 2026-10-17. 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