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 v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 154.52.52.0/23 | 512 |
0.0%
|
SD1-Telecom SRL | US | — | — |
| 81.2.148.0/24 | 256 |
21.5%
|
SD1-Telecom SRL | US | — | — |
| 154.52.36.0/24 | 256 |
0.0%
|
SD1-Telecom SRL | US | — | — |
| 154.52.49.0/24 | 256 |
0.0%
|
SD1-Telecom SRL | US | — | — |
| 154.52.51.0/24 | 256 |
0.0%
|
SD1-Telecom SRL | US | — | — |
| 194.13.142.0/24 | 256 |
0.0%
|
SD1-Telecom SRL | BE | Brussels Capital | Uccle |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS201042 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 |
|---|---|---|
| 81.2.148.0/24 | 39,708 | 2026-10-14 05:10:21 |
| 154.52.36.0/24 | 39,075 | 2026-10-14 05:10:21 |
| 154.52.49.0/24 | 38,474 | 2026-10-14 05:10:21 |
| 154.52.51.0/24 | 38,465 | 2026-10-14 05:10:21 |
| 194.13.142.0/24 | 35,468 | 2026-10-14 05:10:21 |
| 154.52.52.0/24 | 16,111 | 2026-10-14 05:10:39 |
| 154.52.53.0/24 | 1,794 | 2026-10-14 05:10:39 |
Frequently Asked Questions
What is AS201042?
AS201042 is an Autonomous System Number assigned to SD1-Telecom SRL. 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 AS201042 announce?
AS201042 announces 1.8K IPv4 addresses distributed across 6 routed CIDR prefixes. The network is registered in Belgium.
Who operates AS201042?
AS201042 is operated by SD1-Telecom SRL. The organization is based in Belgium. You can view all IP ranges and related ASNs on the organization page.
What country is AS201042 registered in?
AS201042 is registered in Belgium. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
