Autonomous system
AS18072 STREAMWING NTT Communications, Corp.
Unclassified APNIC
Summary
NTT DOCOMO BUSINESS
business japan ntt
STREAMWING is held by NTT DOCOMO BUSINESS, Inc.
What it's used for
- The address space is registered under the netname
STREAMWING-CIDR-BLK-JPwith the Japan Network Information Center. - The AS announces 1280 IPv4 addresses across 2 prefixes and maintains 1 observed neighbour, indicating a small-scale business or internal corporate estate rather than a transit or large access network.
Notable
- The RDAP registrants for both prefixes are listed as Japan Network Information Center, which is consistent with the Japanese allocation authority for the announced blocks.
- The address inventory consists of two IPv4 blocks: 219.101.48.0/22 and 219.101.63.0/24.
- The operator is part of the NTT Group, a major Japanese telecommunications and technology conglomerate.
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 |
|---|---|---|
| AS4713 | NTT DOCOMO BUSINESS,Inc. | 295 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 1.28K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 2 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS18072- Registry name
- STREAMWING
- Abuse contact
- hostmaster@nic.ad.jp
- Registered
- 2001-12-27
- Last changed
- 2025-12-04
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 5 with no ROA
- ROAs
- 0 authorising AS18072
- ASPA
- no ASPA record
- IRR
- 100% registered · 5 of 5 announcements
- Route objects
- 17 naming AS18072
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 2026-10-20. 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