AS131916
Tokyo Bay Network Co.,Ltd.
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
- Isp allocation +5
- Trust score 70 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 1 internet exchange: JPNAP Tokyo: Peering
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 163.131.128.0/18 | 16.4K |
94.7%
|
Tokyo Bay Network Co.,Ltd. | JP | Tokyo | Kameido |
| 163.131.112.0/20 | 4.1K |
48.3%
|
Tokyo Bay Network Co.,Ltd. | JP | Tokyo | Shirakawa |
| 157.65.216.0/21 | 2.0K |
0.0%
|
Tokyo Bay Network Co.,Ltd. | JP | Tokyo | Kameido |
| 202.16.104.0/21 | 2.0K |
0.0%
|
Tokyo Bay Network Co.,Ltd. | JP | Tokyo | Kameido |
| 202.247.136.0/21 | 2.0K |
92.8%
|
Tokyo Bay Network Co.,Ltd. | JP | Fukuoka | Chūōku |
| 202.247.184.0/21 | 2.0K |
95.1%
|
Tokyo Bay Network Co.,Ltd. | JP | Tokyo | Kameido |
| 103.91.4.0/22 | 1.0K |
26.0%
|
Tokyo Bay Network Co.,Ltd. | JP | — | — |
| 219.100.12.0/22 | 1.0K |
0.0%
|
Tokyo Bay Network Co.,Ltd. | JP | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS131916 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 |
|---|---|---|
| 157.65.216.0/21 | 4,063 | 2026-07-20 04:08:18 |
| 163.131.124.0/22 | 3,770 | 2026-07-20 04:08:18 |
| 163.131.120.0/22 | 3,760 | 2026-07-20 04:08:18 |
| 163.131.112.0/22 | 3,757 | 2026-07-20 04:08:18 |
| 202.247.184.0/21 | 3,743 | 2026-07-20 04:08:19 |
| 202.247.136.0/22 | 3,741 | 2026-07-20 04:08:19 |
| 202.247.140.0/22 | 3,729 | 2026-07-20 04:08:19 |
| 202.16.104.0/21 | 3,722 | 2026-07-20 04:08:19 |
| 163.131.128.0/18 | 3,703 | 2026-07-20 04:08:18 |
| 163.131.116.0/22 | 3,702 | 2026-07-20 04:08:18 |
| 219.100.12.0/22 | 3,650 | 2026-07-20 04:08:19 |
| 103.91.4.0/22 | 3,598 | 2026-07-20 04:08:18 |
Frequently Asked Questions
What is AS131916?
AS131916 is an Autonomous System Number assigned to Tokyo Bay Network 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 AS131916 announce?
AS131916 announces 30.7K IPv4 addresses distributed across 8 routed CIDR prefixes. The network is registered in Japan.
Who operates AS131916?
AS131916 is operated by Tokyo Bay Network Co.,Ltd.. The organization is based in Japan. You can view all IP ranges and related ASNs on the organization page.
What country is AS131916 registered in?
AS131916 is registered in Japan. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
