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Autonomous System

AS31673

Uniserver Internet B.V.

Announced IPs
58,112
CIDR prefixes
37
ASN
AS31673

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.

70/100
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 10-20Gbps
Geographic scope Europe
Traffic ratio Balanced
Peering policy Restrictive
IRR record RIPE::AS-UNISERVER

Present at 3 internet exchanges: AMS-IX, NL-ix 2, NL-ix: Main

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
62.148.160.0/19 8.2K
79.6%
Uniserver Internet B.V. NL
80.247.160.0/20 4.1K
10.9%
Uniserver Internet B.V. NL Overijssel Kampen
81.26.208.0/20 4.1K
17.0%
Uniserver Internet B.V. NL
81.93.48.0/20 4.1K
12.4%
Uniserver Internet B.V. NL
84.38.224.0/20 4.1K
90.3%
Uniserver Internet B.V. NL South Holland Schiedam
85.255.208.0/20 4.1K
10.6%
Uniserver Internet B.V. NL
5.39.168.0/21 2.0K
4.1%
Uniserver Internet B.V. NL North Holland Wormerveer
31.171.200.0/21 2.0K
0.0%
Uniserver Internet B.V. NL
83.143.184.0/21 2.0K
7.3%
Uniserver Internet B.V. NL Utrecht Houten
94.126.64.0/21 2.0K
22.9%
Uniserver Internet B.V. NL
178.248.152.0/21 2.0K
1.1%
Uniserver Internet B.V. NL North Holland Kortenhoef
87.237.100.0/22 1.0K
0.0%
Uniserver Internet B.V. NL
185.2.24.0/22 1.0K
2.4%
Uniserver Internet B.V. NL
185.52.212.0/22 1.0K
0.0%
Uniserver Internet B.V. NL
185.62.208.0/22 1.0K
1.0%
Uniserver Internet B.V. NL
185.87.152.0/22 1.0K
100.0%
Uniserver Internet B.V. NL
185.88.188.0/22 1.0K
0.0%
Uniserver Internet B.V. NL
185.111.120.0/22 1.0K
1.7%
Uniserver Internet B.V. NL
185.139.148.0/22 1.0K
42.3%
Uniserver Internet B.V. NL
185.181.84.0/22 1.0K
0.3%
Uniserver Internet B.V. NL
185.185.164.0/22 1.0K
21.3%
Uniserver Internet B.V. NL
185.210.24.0/22 1.0K
0.1%
Uniserver Internet B.V. NL
193.239.88.0/22 1.0K
15.8%
Uniserver Internet B.V. NL
194.56.84.0/22 1.0K
3.9%
Uniserver Internet B.V. NL
195.69.72.0/22 1.0K
99.5%
Uniserver Internet B.V. NL
83.136.18.0/23 512
27.5%
Uniserver Internet B.V. NL
87.237.96.0/23 512
5.9%
Uniserver Internet B.V. NL
185.89.18.0/23 512
0.0%
Uniserver Internet B.V. NL
185.121.92.0/23 512
99.6%
Uniserver Internet B.V. NL
185.168.86.0/23 512
10.7%
Uniserver Internet B.V. NL
185.226.136.0/23 512
0.2%
Uniserver Internet B.V. NL
193.30.6.0/23 512
0.2%
Uniserver Internet B.V. NL
83.136.17.0/24 256
25.0%
Uniserver Internet B.V. NL
87.237.98.0/24 256
30.9%
Uniserver Internet B.V. NL
185.121.94.0/24 256
99.6%
Uniserver Internet B.V. NL North Holland Amsterdam
185.168.85.0/24 256
2.0%
Uniserver Internet B.V. NL
193.36.186.0/24 256
5.5%
Uniserver Internet B.V. NL

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS31673 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
84.38.239.0/24 11,853 2026-07-14 12:23:19
185.121.92.0/23 11,814 2026-07-26 21:44:51
185.121.94.0/24 11,698 2026-07-26 21:45:08
185.139.148.0/22 11,635 2026-07-26 21:45:11
84.38.224.0/20 11,615 2026-07-26 21:44:38
81.93.48.0/20 11,539 2026-07-26 21:45:03
31.171.200.0/21 11,533 2026-07-26 21:45:11
5.39.168.0/21 11,516 2026-07-26 21:45:11
81.26.208.0/20 11,505 2026-07-26 21:44:50
87.237.96.0/21 11,396 2026-07-26 21:45:11
80.247.160.0/20 11,390 2026-07-26 21:45:20
185.226.136.0/23 11,382 2026-07-26 21:45:09
85.255.208.0/20 11,373 2026-07-26 21:45:11
193.239.88.0/22 11,347 2026-07-26 21:45:20
185.181.84.0/22 11,331 2026-07-26 21:45:25
185.168.86.0/23 11,326 2026-07-26 21:45:20
94.126.64.0/21 11,321 2026-07-26 21:45:11
185.87.152.0/22 11,312 2026-07-26 21:45:20
185.111.120.0/22 11,309 2026-07-26 21:45:11
185.168.85.0/24 11,298 2026-07-26 21:45:25
178.248.152.0/21 11,298 2026-07-26 21:45:11
62.148.160.0/19 11,294 2026-07-26 21:45:20
83.143.184.0/21 11,277 2026-07-26 21:45:20
185.2.24.0/22 11,263 2026-07-26 21:45:25
193.30.6.0/23 11,259 2026-07-26 21:45:20
195.69.72.0/22 11,255 2026-07-26 21:45:25
185.52.212.0/22 11,253 2026-07-26 21:45:25
185.185.164.0/22 11,205 2026-07-26 21:45:25
185.62.208.0/22 11,164 2026-07-26 21:45:20
83.143.185.0/24 7,586 2026-07-06 10:58:46
83.136.19.0/24 6,671 2026-07-26 21:44:58
83.136.17.0/24 6,576 2026-07-26 21:45:13
83.136.18.0/24 6,561 2026-07-26 21:45:13
193.36.186.0/24 6,435 2026-07-26 21:45:24
185.88.188.0/22 5,178 2026-07-26 21:44:59
194.56.84.0/22 5,013 2026-07-26 21:45:20
185.89.18.0/23 4,905 2026-07-26 21:45:11
84.38.238.0/24 3,048 2026-06-10 12:57:31
31.171.206.0/24 2,606 2026-07-08 19:18:04
5.39.173.0/24 2,510 2026-07-06 14:57:55
85.255.212.0/24 2,470 2026-07-13 06:46:18
185.210.24.0/22 1,947 2026-06-24 17:20:51
5.39.174.0/24 37 2026-05-20 00:06:29

Frequently Asked Questions

What is AS31673?

AS31673 is an Autonomous System Number assigned to Uniserver Internet B.V.. 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 AS31673 announce?

AS31673 announces 58.1K IPv4 addresses distributed across 37 routed CIDR prefixes. The network is registered in The Netherlands.

Who operates AS31673?

AS31673 is operated by Uniserver Internet B.V.. The organization is based in The Netherlands. You can view all IP ranges and related ASNs on the organization page.

What country is AS31673 registered in?

AS31673 is registered in The Netherlands. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-27 00:10:32 UTC
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