Run environment check
6 dimensions · leaks / fingerprint / consistency

ASN lookup result for AS55900 GLBB Japan KK — network size, BGP routing and registration

JPAS55900GLBB Japan KKISP
WHOIS Topology

Japan · APNICglbb.jp

Business linesHome broadband

IPv4 addresses

52,992

31 announced prefixes

IPv6 addresses

7.92 × 10²⁸

1 announced prefixes

BGP neighbours

…

CAIDA rank

#589

Customer cone 79 ASNs

Estimated users

131K

APNIC: 132K

RPKI

100% valid

0 invalid · 0 not covered

Average purity

92

183 sampled IPs

IXPs / facilities

7 / 14

Operator self-reported

History

How prefixes were announced and changed hands, registration changes, and outage or hijack incidents.

Loading routing history…

IP ranges

Currently announced prefixes with their RIR registration and geolocation.

PrefixRPKIRegistrationGeolocationAddresses
27.0.16.0/20ValidJPGLBBADMAPNICJPTomari4,096
104.222.192.0/20ValidJPGLBBADMAPNICJPJapan4,096
109.236.0.0/20ValidJPGLBBADMAPNICJPHanakoganei4,096
137.220.16.0/20ValidJPGLBBADMAPNICJPJapan4,096
172.97.80.0/20ValidJPGLBBADMAPNICJPJapan4,096
180.131.208.0/20ValidJPGLBBADMAPNICJPJapan4,096
180.131.224.0/20ValidJPGLBBADMAPNICJPJapan4,096
180.131.240.0/20ValidJPGLBBADMAPNICJPTokyo4,096
198.144.128.0/20ValidJPGLBBADMAPNICJPChatan4,096
104.222.208.0/21ValidJPGLBBADMAPNICJPJapan2,048
202.171.224.0/21ValidJPGLBBADMAPNICJPJapan2,048
218.223.128.0/21ValidJPJPNIC-NET-JPAPNICJPNakano City2,048
43.248.160.0/22ValidJPGLBBADMAPNICJPJapan1,024
103.7.88.0/22ValidJPGLBBADMAPNICJPAkasaka1,024
103.13.248.0/22ValidJPGLBBADMAPNICJPOkinawa1,024
103.250.92.0/22ValidJPGLBBADMAPNICJPKamiochiai1,024
104.222.216.0/22ValidJPGLBBADMAPNICJPJapan1,024
123.100.136.0/22ValidJPGLBBADMAPNICJPAkasaka1,024
123.100.156.0/22ValidJPGLBBADMAPNICJPNishigotanda1,024
202.12.244.0/22ValidJPGLBBADMAPNICJPTokyo1,024

/24 block profile

One square per /24: colour shows the risk type, shade how many addresses are flagged, stripes mark datacenter blocks. Click a square to see all 256 addresses.

/24s with data 24 / 207 （12%） · flagged 3

No risk flagsDatacenter (no flags)ProxyVPNAbuse / blocklistTorDarker = more flagged addresses; dashed = block screen only

202.171.224.0/213/8 with data · 0 flagged

123.100.136.0/223/4 with data · 1 flagged

202.12.244.0/223/4 with data · 0 flagged

109.236.0.0/202/16 with data · 0 flagged

137.220.16.0/202/16 with data · 0 flagged

180.131.240.0/202/16 with data · 2 flagged

218.223.128.0/212/8 with data · 0 flagged

27.0.16.0/201/16 with data · 0 flagged

180.131.208.0/201/16 with data · 0 flagged

180.131.224.0/201/16 with data · 0 flagged

198.144.128.0/201/16 with data · 0 flagged

103.7.88.0/221/4 with data · 0 flagged

Hover a square for its numbers; click to see all 256 addresses.

Each prefix shows its 64 /24s with the most data. Built daily from lookups, neighbour sampling, public lists and block screening.

IP reputation

IPs from this network that CleanIP has analysed: purity, abuse reports and the riskiest /24 blocks.

Purity distribution

85–100 15370–84 2450–69 50–49 1

0.02%

Share of IPv4 reported or blocklisted

9

Listed IPs

183

Analysed IPs

Riskiest /24 blocks

/24 blockFlaggedAnalysed
123.100.137.0/24340
123.100.136.0/24162
180.131.255.0/2411

Flagged = VPN, proxy, Tor or purity below 50. Samples come from user lookups and neighbour sampling, not every address in this network.

Geography

Where this network’s IPv4 addresses are located.

  • JP Japan
Scope
Single country
In registered country
100.0%

Estimated by sampling IPv4 ranges against a geolocation database.

Traffic observation

AS55900 · Last 7 days
Mobile vs. Desktop
Desktop 51.6%Mobile 48.4%
Desktop51.6%Mobile48.4%
Bot vs. Human
Human 85.8%Bot 14.2%
Human85.8%Bot14.2%

Adoption & Usage

Adoption and usage of key protocols

Internet Protocol (IP) Version
IPv4 87.5%IPv6 12.5%12.5%IPv6
IPv487.5%IPv612.5%
HTTP Version
HTTP/1.x
13.4%HTTP/2
63.4%HTTP/3
23.3%
HTTP vs. HTTPS
99.6% HTTPS (encrypted)
Plain HTTP 0.4%
TLS Version
TLS 1.0/1.1< 0.1%TLS 1.25.2%TLS 1.371.4%QUIC23.3%

Security & Attacks

Insights into network and application layer attack traffic

Layer 7 Attacks
GET
79.5%POST
17.9%PUT
1.1%OPTIONS
0.8%HEAD
0.6%

BGP Announcements

Hourly BGP route announcements over the last 7 days

109,582
7-day total
4,804
Hourly peak

Data: Cloudflare Radar, licensed under CC BY-NC 4.0

Activity

Hourly traffic over the last 7 days, normalized to this network’s peak.

A pronounced day/night rhythm, typical of networks with human users.

00061218
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Times in UTCLessMore
Peak hour
13:00–14:00
Active hours
19 hrs
Weekend vs weekday
Weekdays ≈ weekends
Busiest day
Wed

Datacenter Presence

Loading…

BGP upstreams and neighbours

AS55900Standalone page
Loading upstreams and neighbours…

WHOIS record

The registry’s record for this AS number: holder, status, dates and contacts.

Sources

Where the information on this page comes from and when it was updated.

InformationSourceUpdated
Registered countryRIR daily delegation statistics2026-10-23
Organization & company countryAS-to-organization data2026-10-22
Network typeCleanIP ASN canon2026-10-23
Exchanges & facilitiesOperator self-reported interconnection data2026-10-22
Announced prefixes & BGP neighboursPublic BGP routing data2026-10-23
IPv4 geographyGeolocation database—
RPKI validationRPKI ROA validation data2026-10-23
Rank & customer coneCAIDA AS Rank2026-10-01
Estimated users (APNIC)APNIC Labs user estimates2026-10-20
Network tagsPublic routing data community tags2026-10-23
IP reputationCleanIP lookups and neighbour sampling—

The page is taking longer to start. Some resources may not have loaded. Please try reloading.

Reload page

Multi-source cross-checks · In-house reputation data · Real data only

mimetic
mimetic
mimetic