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Autonomous System

AS30851

Sileman Sp. z o.o.

Announced IPs
37,120
CIDR prefixes
25
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 v1.2.0 — 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
85.198.208.0/20 127,738 2026-09-10 19:34:58
85.11.110.0/23 122,618 2026-09-10 19:34:58
217.173.168.0/23 122,454 2026-09-10 19:34:58
217.173.170.0/23 122,023 2026-09-10 19:34:58
83.142.173.0/24 105,044 2026-09-10 19:34:46
85.11.64.0/20 59,302 2026-09-10 19:33:01
85.11.112.0/20 51,907 2026-09-10 19:03:32
85.11.80.0/20 51,868 2026-09-10 19:03:32
85.11.64.0/18 51,736 2026-09-10 19:03:32
85.11.96.0/20 51,321 2026-09-10 19:03:33
85.198.192.0/20 50,171 2026-09-10 19:03:33
85.198.224.0/20 49,691 2026-09-10 18:23:07
217.173.160.0/22 47,434 2026-09-10 19:03:32
193.24.204.0/22 39,005 2026-09-10 19:03:33
83.142.168.0/22 35,867 2026-09-10 19:24:04
85.198.200.0/24 35,852 2026-09-10 19:24:04
85.11.110.0/24 35,791 2026-09-10 19:24:14
85.198.220.0/22 35,785 2026-09-10 19:24:04
85.11.111.0/24 35,755 2026-09-10 19:24:14
217.173.164.0/22 34,820 2026-09-10 19:26:34
83.142.175.0/24 33,362 2026-09-10 19:24:04
83.142.172.0/22 33,141 2026-09-10 19:24:04
85.198.240.0/20 31,721 2026-08-05 05:04:33
217.173.168.0/22 30,662 2026-09-10 19:26:34
83.142.170.0/24 30,299 2026-09-10 19:24:04
83.142.171.0/24 28,517 2026-09-10 19:24:14
85.11.88.0/21 28,262 2026-09-10 19:24:14
85.198.240.0/21 26,519 2026-09-10 18:12:23
85.198.252.0/22 26,493 2026-09-10 18:43:16
217.173.172.0/22 25,641 2026-09-10 19:26:34
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
85.198.251.250/32 717 2026-09-05 19:45:51
85.11.97.139/32 716 2026-09-05 19:45:51
85.11.66.135/32 716 2026-09-05 19:45:51
85.11.67.177/32 618 2026-09-05 19:45:51
217.173.161.1/32 618 2026-09-09 22:05:21
85.11.67.254/32 617 2026-09-05 19:45:51
217.173.160.1/32 616 2026-09-09 22:05:21
85.11.67.241/32 616 2026-09-05 19:45:51
85.11.67.225/32 616 2026-09-05 19:45:51
85.11.67.193/32 616 2026-09-05 19:45:51
85.198.227.97/32 615 2026-09-05 19:45:51
85.11.75.121/32 615 2026-09-05 19:45:51
85.198.234.65/32 615 2026-09-05 19:45:51

Showing top 50 of 103 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.

Last updated: 2026-09-10 19:39:06 UTC
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