Autonomous system
AS55900 GLBB-JP GLBB Japan KK
Unclassified ARIN NSP
Summary
GLBB Japan
isp residential business japan
GLBB-JP is operated by GLBB Japan KK.
What it's used for
- The address space carries netnames such as
GLBB-NET,GLBB-UP1,GLBB-UP2,GLBB-UP4,GLBB-UP6, andATCC-YOKOTA, with reverse DNS entries pointing tojptransit.netandglbb.ne.jp. - The AS announces 52,992 IPv4 addresses across 29 prefixes and 1 IPv6 prefix, while maintaining 24 observed neighbours, a ratio consistent with an access or eyeball network serving end-users.
- Traffic from this AS consists of subscriber eyeballs and business users, as GLBB Japan provides communication platforms for individuals and businesses.
Notable
- Registrants for the largest prefixes are listed as Japan Network Information Center (JPNIC) with IRT-JPNIC-JP, which is standard for Japanese address space allocation, while the AS holder is GLBB Japan KK.
- The address inventory includes a mix of /20, /21, /22, /23, and /24 prefixes, with the largest block being 180.131.224.0/19.
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 4 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| BroadBand Internet eXchange Tokyo | Tokyo, Japan | 101.203.88.138 |
| JPIX Tokyo | Tokyo, Japan | 210.171.225.58 |
| BroadBand Internet eXchange Osaka | Osaka, Japan | 218.100.9.121 |
| Equinix Internet Exchange Tokyo | Tokyo, Japan | 203.190.230.113 |
Transit providers
8 upstream, 8 downstream and 30 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 2026-10-31, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 29 prefixes · 52.99K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 30 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS55900- Registry name
- GLBB-JP
- Registered
- 2010-11-29
- Last changed
- 2013-08-27
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- GLBB Japan
- Also known as
- GLBB
- Network type
- NSP
- Scope
- Global
- Traffic ratio
- Balanced
- Peering policy
- Selective
- IRR as-set
AS-GLBB-TRANSIT- Present at
- 7 exchanges
- Facilities
- 14 facilities
- Website
- https://www.glbb.jp/en/company/
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 · 32 valid, 0 with no ROA
- ROAs
- 25 authorising AS55900
- ASPA
- no ASPA record
- IRR
- 100% registered · 32 of 32 announcements
- Route objects
- 85 naming AS55900
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: 447 networks and 1,843 prefixes, as published 2026-11-01. 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