Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Trust score 65 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 6 internet exchanges: JPIX TOKYO, BBIX Tokyo, JPIX OSAKA, BBIX Fukuoka, BBIX Osaka, JPNAP Fukuoka
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 42.83.0.0/18 | 16.4K |
89.4%
|
BTV CO.,LTD. | JP | Miyazaki | Miyakonojō |
| 219.103.0.0/19 | 8.2K |
95.4%
|
BTV CO.,LTD. | JP | Miyazaki | Miyakonojō |
| 203.211.32.0/20 | 4.1K |
97.3%
|
BTV CO.,LTD. | JP | Kagoshima | Shibushi |
| 153.124.224.0/21 | 2.0K |
94.6%
|
BTV CO.,LTD. | JP | Miyazaki | Nagata |
| 163.131.104.0/21 | 2.0K |
0.0%
|
BTV CO.,LTD. | JP | Kagoshima | Shibushi |
| 182.23.216.0/21 | 2.0K |
95.5%
|
BTV CO.,LTD. | JP | — | — |
| 203.211.48.0/21 | 2.0K |
97.3%
|
BTV CO.,LTD. | JP | Kagoshima | Kagoshima |
| 103.205.48.0/22 | 1.0K |
90.1%
|
BTV CO.,LTD. | JP | Kagoshima | Shibushi |
| 219.100.88.0/22 | 1.0K |
92.5%
|
BTV CO.,LTD. | JP | Miyazaki | Miyakonojō |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS18135 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 203.211.32.0/20 | 5,083 | 2026-07-28 00:17:47 |
| 203.211.48.0/21 | 5,076 | 2026-07-28 00:17:47 |
| 182.23.216.0/21 | 5,069 | 2026-07-28 00:17:47 |
| 163.131.104.0/22 | 5,041 | 2026-07-28 00:19:51 |
| 163.131.108.0/22 | 5,035 | 2026-07-28 00:19:51 |
| 153.124.224.0/21 | 5,032 | 2026-07-28 00:17:47 |
| 219.103.0.0/19 | 5,022 | 2026-07-28 00:17:47 |
| 219.100.88.0/22 | 5,012 | 2026-07-28 00:17:47 |
| 103.205.48.0/22 | 4,972 | 2026-07-28 00:17:47 |
| 42.83.0.0/18 | 4,740 | 2026-07-28 00:17:47 |
Frequently Asked Questions
What is AS18135?
AS18135 is an Autonomous System Number assigned to BTV CO.,LTD.. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS18135 announce?
AS18135 announces 38.9K IPv4 addresses distributed across 9 routed CIDR prefixes. The network is registered in Japan.
Who operates AS18135?
AS18135 is operated by BTV CO.,LTD.. The organization is based in Japan. You can view all IP ranges and related ASNs on the organization page.
What country is AS18135 registered in?
AS18135 is registered in Japan. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
