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
- Multiple-origin (MOAS) routing anomaly −12
- Trust score 53 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
⚠ 1 MOAS prefix — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS30851 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.
| Prefix | Origin ASNs | Last detected (UTC) |
|---|---|---|
| 91.221.122.86/32 | AS30851, AS51931 | 2026-07-21 15:38:12 |
Network profile
Source: PeeringDB →Present at 1 internet exchange: EPIX.Katowice
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS30851 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 |
|---|---|---|
| 85.198.208.0/20 | 37,565 | 2026-07-22 00:49:09 |
| 85.11.110.0/23 | 36,344 | 2026-07-22 00:49:09 |
| 85.11.64.0/20 | 24,596 | 2026-07-22 00:12:44 |
| 85.11.64.0/18 | 24,455 | 2026-07-22 00:12:44 |
| 85.11.112.0/20 | 24,453 | 2026-07-22 00:12:44 |
| 85.11.80.0/20 | 24,435 | 2026-07-22 00:12:44 |
| 85.198.240.0/20 | 24,192 | 2026-07-22 00:13:06 |
| 83.142.168.0/22 | 24,092 | 2026-07-22 00:13:06 |
| 85.198.200.0/24 | 24,052 | 2026-07-22 00:13:06 |
| 85.198.220.0/22 | 23,982 | 2026-07-22 00:13:06 |
| 85.11.96.0/20 | 23,946 | 2026-07-22 00:12:44 |
| 217.173.164.0/22 | 23,794 | 2026-07-22 00:15:52 |
| 85.11.111.0/24 | 23,727 | 2026-07-22 00:13:06 |
| 85.11.110.0/24 | 23,727 | 2026-07-22 00:13:06 |
| 85.198.192.0/20 | 23,464 | 2026-07-22 00:12:44 |
| 85.198.224.0/20 | 22,924 | 2026-07-22 00:13:07 |
| 217.173.160.0/22 | 22,326 | 2026-07-22 00:13:43 |
| 83.142.175.0/24 | 21,587 | 2026-07-22 00:13:06 |
| 83.142.172.0/22 | 21,308 | 2026-07-22 00:13:06 |
| 217.173.168.0/22 | 19,670 | 2026-07-22 00:15:52 |
| 217.173.168.0/23 | 19,091 | 2026-07-22 00:49:09 |
| 217.173.170.0/23 | 19,068 | 2026-07-22 00:49:09 |
| 83.142.170.0/24 | 18,585 | 2026-07-22 00:13:06 |
| 83.142.171.0/24 | 16,796 | 2026-07-22 00:13:06 |
| 85.11.88.0/21 | 16,398 | 2026-07-22 00:13:06 |
| 83.142.173.0/24 | 16,201 | 2026-07-22 00:13:06 |
| 217.173.172.0/22 | 14,663 | 2026-07-22 00:15:52 |
| 193.24.204.0/22 | 13,674 | 2026-07-22 00:13:43 |
| 93.176.224.0/19 | 7,744 | 2026-07-13 06:46:18 |
| 93.176.192.0/18 | 6,592 | 2026-06-18 09:32:30 |
| 93.176.192.0/19 | 4,778 | 2026-07-13 18:26:16 |
| 93.176.240.0/20 | 3,002 | 2026-07-13 06:46:18 |
| 93.176.208.0/20 | 2,958 | 2026-07-13 06:46:18 |
| 93.176.192.0/20 | 2,939 | 2026-07-13 06:46:18 |
| 93.176.224.0/20 | 2,925 | 2026-07-13 06:46:18 |
| 85.198.251.250/32 | 112 | 2026-07-22 01:12:39 |
| 85.11.97.139/32 | 112 | 2026-07-22 01:12:39 |
| 85.11.66.135/32 | 111 | 2026-07-22 01:13:10 |
| 85.198.200.229/32 | 63 | 2026-07-20 20:48:04 |
| 85.198.222.51/32 | 63 | 2026-07-15 02:37:05 |
| 217.173.160.0/20 | 56 | 2026-07-19 23:16:40 |
| 193.24.207.126/32 | 53 | 2026-07-07 11:01:04 |
| 178.213.220.85/32 | 23 | 2026-07-13 15:47:08 |
| 178.213.222.51/32 | 22 | 2026-07-06 20:30:05 |
| 85.198.247.34/32 | 22 | 2026-07-21 12:38:29 |
| 178.213.216.168/32 | 21 | 2026-07-12 22:06:06 |
| 193.24.207.188/32 | 18 | 2026-07-19 23:35:24 |
| 85.11.111.226/32 | 17 | 2026-05-26 15:47:05 |
| 85.198.248.141/32 | 17 | 2026-06-01 19:43:04 |
| 178.213.220.166/32 | 16 | 2026-06-05 16:33:03 |
Showing top 50 of 78 announced prefixes by sample volume.
Frequently Asked Questions
What is AS30851?
AS30851 is an Autonomous System Number assigned to Sileman Sp. z o.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 AS30851 announce?
AS30851 announces 37.1K IPv4 addresses distributed across 25 routed CIDR prefixes. The network is registered in Poland.
Who operates AS30851?
AS30851 is operated by Sileman Sp. z o.o.. The organization is based in Poland. You can view all IP ranges and related ASNs on the organization page.
What country is AS30851 registered in?
AS30851 is registered in Poland. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
