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 1 internet exchange: BBIX Tokyo
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 45.112.128.0/22 | 1.0K |
91.1%
|
PF LINK SYSTEMS | SG | — | — |
| 103.48.164.0/22 | 1.0K |
0.0%
|
Child Wisdom Limited | JP | — | — |
| 103.51.36.0/22 | 1.0K |
0.0%
|
Child Wisdom Limited | JP | — | — |
| 103.205.72.0/22 | 1.0K |
93.2%
|
PF LINK SYSTEMS | SG | — | — |
| 103.108.236.0/23 | 512 |
0.0%
|
PF LINK SYSTEMS | JP | — | — |
| 103.95.30.0/24 | 256 |
0.0%
|
PF LINK SYSTEMS | JP | — | — |
| 103.108.238.0/24 | 256 |
0.0%
|
PF LINK SYSTEMS | JP | — | — |
| 103.215.173.0/24 | 256 |
0.0%
|
PF LINK SYSTEMS | JP | — | — |
| 103.218.6.0/24 | 256 |
0.0%
|
PF LINK SYSTEMS | HK | — | — |
| 123.253.218.0/24 | 256 |
0.0%
|
PF LINK SYSTEMS | HK | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS137445 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 |
|---|---|---|
| 103.108.238.0/24 | 5,714 | 2026-08-01 04:05:17 |
| 103.215.173.0/24 | 5,713 | 2026-08-01 04:06:23 |
| 103.108.237.0/24 | 5,692 | 2026-08-01 04:05:17 |
| 45.112.128.0/22 | 5,598 | 2026-08-01 03:49:17 |
| 103.205.72.0/22 | 5,512 | 2026-08-01 04:06:18 |
| 103.48.164.0/22 | 5,502 | 2026-08-01 04:04:35 |
| 103.51.36.0/22 | 5,485 | 2026-08-01 04:04:36 |
| 103.108.236.0/24 | 5,202 | 2026-08-01 04:05:17 |
| 103.218.6.0/24 | 5,157 | 2026-08-01 04:06:24 |
| 123.253.218.0/24 | 5,045 | 2026-08-01 04:11:17 |
| 103.95.30.0/24 | 4,776 | 2026-08-01 04:05:10 |
Frequently Asked Questions
What is AS137445?
AS137445 is an Autonomous System Number assigned to PF LINK SYSTEMS. 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 AS137445 announce?
AS137445 announces 5.9K IPv4 addresses distributed across 10 routed CIDR prefixes. The network is registered in Japan.
Who operates AS137445?
AS137445 is operated by PF LINK SYSTEMS. The organization is based in Japan. You can view all IP ranges and related ASNs on the organization page.
What country is AS137445 registered in?
AS137445 is registered in Japan. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
