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Autonomous System

AS30851

Sileman Sp. z o.o.

Announced IPs
35,072
CIDR prefixes
18
ASN
AS30851

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.

65/100
Moderate
How this score is built

Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →

Network profile

Source: PeeringDB →
Network type NSP
Traffic level 20-50Gbps
Geographic scope Regional
Traffic ratio Mostly Inbound
Peering policy Restrictive
IRR record AS-SGMI

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.

PrefixAnnouncement samplesLast seen
217.173.168.0/23 705,777 2026-10-27 09:19:52
217.173.170.0/23 703,444 2026-10-27 09:19:52
85.198.208.0/20 671,137 2026-10-27 09:19:52
85.11.110.0/23 658,289 2026-10-27 09:19:52
83.142.173.0/24 351,400 2026-10-27 09:18:09
85.11.64.0/20 93,621 2026-10-27 09:17:59
85.11.112.0/20 85,776 2026-10-27 09:17:59
85.11.80.0/20 85,687 2026-10-27 09:17:59
85.11.64.0/18 85,612 2026-10-27 09:17:59
85.11.96.0/20 85,148 2026-10-27 09:17:59
85.198.192.0/20 83,422 2026-10-27 09:17:59
85.198.224.0/20 82,639 2026-10-27 09:17:59
217.173.160.0/22 78,895 2026-10-27 09:17:59
193.24.204.0/22 70,841 2026-10-27 09:17:59
85.198.240.0/21 59,862 2026-10-27 09:17:55
85.198.252.0/22 59,857 2026-10-27 09:17:55
83.142.168.0/22 47,439 2026-10-27 09:18:09
85.11.110.0/24 47,358 2026-10-27 09:18:09
85.198.200.0/24 47,241 2026-10-27 09:18:09
85.11.111.0/24 47,205 2026-10-27 09:18:09
85.198.220.0/22 47,162 2026-10-27 09:18:09
217.173.164.0/22 46,124 2026-10-27 09:18:09
83.142.175.0/24 44,782 2026-10-27 09:18:09
83.142.172.0/22 44,616 2026-10-27 09:18:09
217.173.168.0/22 41,825 2026-10-27 09:18:09
83.142.170.0/24 41,678 2026-10-27 09:18:09
83.142.171.0/24 39,493 2026-10-27 09:18:09
85.11.88.0/21 39,311 2026-10-27 09:18:09
217.173.172.0/22 36,748 2026-10-27 09:18:09
85.198.240.0/20 31,721 2026-08-05 05:04:33
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
85.11.97.139/32 1,165 2026-10-26 23:21:55
85.11.66.135/32 1,163 2026-10-26 23:21:55
85.198.251.250/32 1,162 2026-10-26 23:21:55
85.11.67.177/32 1,066 2026-10-26 23:21:55
85.11.67.254/32 1,066 2026-10-26 23:21:55
85.11.67.241/32 1,065 2026-10-26 23:21:55
85.11.75.121/32 1,064 2026-10-26 23:21:55
85.11.67.225/32 1,063 2026-10-26 23:21:55
85.11.67.193/32 1,063 2026-10-26 23:21:55
85.11.67.129/32 1,062 2026-10-26 23:21:55
85.11.66.33/32 1,062 2026-10-26 23:21:55
85.198.234.65/32 1,062 2026-10-26 23:21:55
85.198.235.1/32 1,061 2026-10-26 23:21:55

Showing top 50 of 115 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 35.1K IPv4 addresses distributed across 18 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.

Last updated: 2026-10-27 09:24:05 UTC
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