Autonomous system
AS18070 NDAC Global Network Core Co.,Ltd.
Residential AFRINIC Cable/DSL/ISP
Summary
Global Network Core
isp residential japan cable
The AS handle NDAC is held by Global Network Core Co.,Ltd., a Japanese cable and DSL internet service provider.
What it's used for
- The address space carries residential and business access traffic, evidenced by reverse DNS entries pointing to
nplus-net.jp, such as210-158-171-254.nplus-net.jpande5fw4344.nplus-net.jp. - The network announces 13056 IPv4 addresses across 7 prefixes and 16 IPv6 prefixes, while maintaining 15 observed neighbours; this ratio of address volume to peering partners indicates an access or eyeball network rather than a transit provider.
Notable
- All registrants for the announced prefixes are listed as Japan Network Information Center with IRT-JPNIC-JP, which is consistent with the holder's identity as a Japanese ISP.
- The address inventory consists of a mix of /20, /21, /22, /23, and /24 blocks, including the large
210.158.160.0/20and218.223.32.0/20ranges, alongside smaller subdivisions in the117.102.0.0/16space.
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 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| JPIX Tokyo | Tokyo, Japan | 210.171.224.199 |
| Echigo Internet Exchange | Niigata, Japan | 58.84.254.17 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, 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 · 13.06K addresses IPv6 16 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 23 |
Registry
Allocation record
- Registry
- AFRINIC
- Handle
AS18070- Registry name
- NDAC
- Abuse contact
- hostmaster@nic.ad.jp
- Registered
- 2001-12-27
- Last changed
- 2008-04-08
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Global Network Core Co., Ltd.
- Also known as
- NDAC
- Network type
- Cable/DSL/ISP
- Scope
- Regional
- Traffic ratio
- Balanced
- Peering policy
- Open
- IRR as-set
AS-18070- Present at
- 2 exchanges
- Website
- http://www.global-netcore.jp/
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 100% valid · 6 valid, 0 with no ROA
- ROAs
- 6 authorising AS18070
- ASPA
- no ASPA record
- IRR
- 100% registered · 6 of 6 announcements
- Route objects
- 12 naming AS18070
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: 446 networks and 1,852 prefixes, as published 2026-10-27. 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