AS51840
CSL Data Centre Services Limited
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 v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 185.27.56.0/22 | 1.0K |
3.2%
|
CSL Data Centre Services Limited | MT | — | — |
| 185.64.56.0/22 | 1.0K |
5.9%
|
CSL Data Centre Services Limited | MT | — | — |
| 185.176.196.0/22 | 1.0K |
0.1%
|
CSL Data Centre Services Limited | MT | — | — |
| 185.177.48.0/22 | 1.0K |
0.4%
|
CSL Data Centre Services Limited | MT | — | — |
| 185.218.148.0/22 | 1.0K |
0.3%
|
CSL Data Centre Services Limited | MT | Birkirkara | Birkirkara |
| 91.220.139.0/24 | 256 |
3.5%
|
CSL Data Centre Services Limited | MT | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS51840 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 |
|---|---|---|
| 185.218.151.0/24 | 9,093 | 2026-07-22 09:34:11 |
| 185.218.148.0/24 | 9,090 | 2026-07-22 09:34:11 |
| 185.218.148.0/22 | 9,069 | 2026-07-22 09:34:11 |
| 185.177.51.0/24 | 9,055 | 2026-07-22 09:34:11 |
| 185.176.196.0/24 | 7,868 | 2026-07-22 09:34:41 |
| 185.177.48.0/22 | 7,835 | 2026-07-22 09:34:41 |
| 185.64.59.0/24 | 7,816 | 2026-07-22 09:34:41 |
| 185.176.198.0/23 | 7,623 | 2026-07-22 09:34:41 |
| 185.176.197.0/24 | 7,184 | 2026-07-22 09:50:08 |
| 185.27.56.0/22 | 5,071 | 2026-07-22 09:38:05 |
| 185.27.58.0/24 | 5,061 | 2026-07-22 09:50:08 |
| 185.64.56.0/22 | 5,024 | 2026-07-22 09:38:05 |
| 185.177.50.0/24 | 5,012 | 2026-07-22 09:38:05 |
| 185.27.56.0/24 | 4,928 | 2026-07-22 09:50:08 |
| 185.218.150.0/24 | 4,923 | 2026-07-22 09:50:08 |
| 185.27.59.0/24 | 4,882 | 2026-07-22 09:50:08 |
| 185.27.57.0/24 | 4,875 | 2026-07-22 09:50:08 |
| 185.177.48.0/24 | 4,873 | 2026-07-22 09:50:08 |
| 185.177.49.0/24 | 4,824 | 2026-07-22 09:50:08 |
| 185.176.199.0/24 | 4,816 | 2026-07-22 09:50:08 |
| 91.220.139.0/24 | 4,805 | 2026-07-22 09:50:08 |
| 185.176.198.0/24 | 4,800 | 2026-07-22 09:50:08 |
| 185.64.57.0/24 | 4,796 | 2026-07-22 09:50:08 |
| 185.64.58.0/24 | 4,772 | 2026-07-22 09:50:08 |
| 185.64.56.0/24 | 4,723 | 2026-07-22 09:50:08 |
Frequently Asked Questions
What is AS51840?
AS51840 is an Autonomous System Number assigned to CSL Data Centre Services Limited. 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 AS51840 announce?
AS51840 announces 5.4K IPv4 addresses distributed across 6 routed CIDR prefixes. The network is registered in Malta.
Who operates AS51840?
AS51840 is operated by CSL Data Centre Services Limited. The organization is based in Malta. You can view all IP ranges and related ASNs on the organization page.
What country is AS51840 registered in?
AS51840 is registered in Malta. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
