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
- Enterprise allocation +4
- Trust score 69 / 100
Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Present at 3 internet exchanges: AMS-IX, NIX.CZ: Public peering VLAN, DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS2852 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 |
|---|---|---|
| 195.113.152.0/24 | 238,699 | 2026-06-24 11:22:17 |
| 146.102.19.0/24 | 60,298 | 2026-06-28 16:55:19 |
| 147.251.49.0/24 | 59,890 | 2026-09-06 05:29:00 |
| 193.84.160.0/20 | 19,203 | 2026-10-01 20:25:24 |
| 193.84.208.0/20 | 18,208 | 2026-10-01 20:26:44 |
| 195.113.226.0/24 | 17,791 | 2026-09-04 11:15:00 |
| 193.84.192.0/20 | 17,022 | 2026-10-01 20:08:40 |
| 193.84.32.0/20 | 16,384 | 2026-10-01 20:08:40 |
| 160.216.0.0/16 | 16,050 | 2026-10-01 20:25:24 |
| 147.230.0.0/16 | 14,711 | 2026-10-01 20:25:29 |
| 160.217.0.0/16 | 14,566 | 2026-10-01 20:15:47 |
| 193.84.104.0/22 | 14,414 | 2026-10-01 20:25:24 |
| 147.228.0.0/16 | 14,359 | 2026-10-01 20:25:29 |
| 158.196.0.0/16 | 14,343 | 2026-10-01 20:25:29 |
| 185.8.160.0/22 | 14,138 | 2026-10-01 20:25:24 |
| 78.128.128.0/17 | 14,031 | 2026-10-01 20:07:39 |
| 193.84.80.0/22 | 13,937 | 2026-10-01 20:25:24 |
| 195.113.0.0/16 | 13,929 | 2026-10-01 20:07:39 |
| 195.178.64.0/19 | 13,902 | 2026-10-01 20:07:39 |
| 193.84.192.0/19 | 13,853 | 2026-10-01 20:08:40 |
| 147.32.0.0/16 | 13,732 | 2026-10-01 20:25:29 |
| 147.231.0.0/16 | 13,478 | 2026-10-01 20:25:24 |
| 146.102.0.0/16 | 13,462 | 2026-10-01 20:25:24 |
| 158.194.0.0/16 | 13,428 | 2026-10-01 20:08:17 |
| 193.84.55.0/24 | 13,407 | 2026-10-01 20:25:24 |
| 193.84.53.0/24 | 13,388 | 2026-10-01 20:25:24 |
| 193.84.116.0/23 | 13,375 | 2026-10-01 20:25:24 |
| 193.84.56.0/21 | 13,331 | 2026-10-01 20:25:24 |
| 147.251.0.0/16 | 13,186 | 2026-10-01 20:25:29 |
| 147.33.0.0/16 | 13,028 | 2026-10-01 20:25:29 |
| 78.128.223.0/24 | 11,365 | 2026-06-03 22:10:20 |
| 195.178.88.0/24 | 11,033 | 2026-08-25 22:46:02 |
| 195.113.89.0/24 | 10,199 | 2026-06-28 19:56:47 |
| 195.113.144.0/24 | 6,651 | 2026-09-22 20:19:06 |
| 147.231.201.0/24 | 6,601 | 2026-06-18 10:15:45 |
| 158.194.161.0/24 | 4,892 | 2026-07-27 01:53:49 |
| 147.230.17.0/24 | 4,772 | 2026-06-29 09:12:03 |
| 147.230.156.0/24 | 4,277 | 2026-06-22 12:56:31 |
| 147.251.58.0/24 | 2,675 | 2026-06-03 22:27:57 |
| 147.231.163.0/24 | 2,670 | 2026-06-10 12:57:31 |
| 195.113.139.0/24 | 2,594 | 2026-07-09 07:06:13 |
| 147.231.28.0/24 | 2,571 | 2026-06-29 04:56:13 |
| 147.251.115.0/24 | 2,402 | 2026-09-12 14:18:56 |
| 193.84.45.0/24 | 2,365 | 2026-09-04 21:23:46 |
| 195.113.87.0/24 | 2,273 | 2026-09-25 02:04:08 |
| 195.113.132.0/24 | 1,973 | 2026-09-07 17:50:03 |
Frequently Asked Questions
What is AS2852?
AS2852 is an Autonomous System Number assigned to CESNET z.s.p.o.. 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 AS2852 announce?
AS2852 announces 849.9K IPv4 addresses distributed across 21 routed CIDR prefixes. The network is registered in Czechia.
Who operates AS2852?
AS2852 is operated by CESNET z.s.p.o.. The organization is based in Czechia. You can view all IP ranges and related ASNs on the organization page.
What country is AS2852 registered in?
AS2852 is registered in Czechia. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
