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Autonomous System

AS31673

Uniserver Internet B.V.

Announced IPs
57,088
CIDR prefixes
36
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 v1.3.0 — 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
84.9%
Uniserver Internet B.V. NL — —
80.247.160.0/20 4.1K
11.6%
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
13.5%
Uniserver Internet B.V. NL — —
84.38.224.0/20 4.1K
94.5%
Uniserver Internet B.V. NL South Holland Schiedam
85.255.208.0/20 4.1K
10.8%
Uniserver Internet B.V. NL — —
5.39.168.0/21 2.0K
4.4%
Uniserver Internet B.V. NL Overijssel Almelo
31.171.200.0/21 2.0K
6.9%
Uniserver Internet B.V. NL — —
83.143.184.0/21 2.0K
7.7%
Uniserver Internet B.V. NL Utrecht Houten
94.126.64.0/21 2.0K
23.0%
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
99.5%
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
55.3%
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
22.5%
Uniserver Internet B.V. NL — —
193.239.88.0/22 1.0K
16.2%
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
100.0%
Uniserver Internet B.V. NL — —
83.136.18.0/23 512
29.5%
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
98.6%
Uniserver Internet B.V. NL — —
185.168.86.0/23 512
10.5%
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
29.7%
Uniserver Internet B.V. NL — —
87.237.98.0/24 256
30.9%
Uniserver Internet B.V. NL — —
185.121.94.0/24 256
98.4%
Uniserver Internet B.V. NL — —
185.168.85.0/24 256
2.0%
Uniserver Internet B.V. NL — —
193.36.186.0/24 256
5.1%
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
5.39.168.0/21 26,488 2026-11-12 03:01:48
84.38.224.0/20 21,024 2026-11-12 01:31:51
31.171.200.0/21 21,004 2026-11-12 01:31:51
81.26.208.0/20 20,625 2026-11-12 01:31:51
81.93.48.0/20 20,606 2026-11-12 01:31:51
185.121.92.0/23 20,531 2026-11-12 01:31:51
87.237.96.0/21 20,346 2026-11-12 01:31:51
62.148.160.0/19 20,311 2026-11-12 01:31:51
85.255.208.0/20 20,297 2026-11-12 01:31:51
185.121.94.0/24 20,290 2026-11-12 01:31:51
80.247.160.0/20 20,281 2026-11-12 01:31:51
94.126.64.0/21 20,177 2026-11-12 01:31:51
185.139.148.0/22 20,157 2026-11-12 01:31:51
83.143.184.0/21 20,115 2026-11-12 01:31:51
185.226.136.0/23 19,944 2026-11-12 01:36:26
178.248.152.0/21 19,827 2026-11-12 01:31:51
185.111.120.0/22 19,810 2026-11-12 01:31:51
185.87.152.0/22 19,792 2026-11-12 01:31:51
185.181.84.0/22 19,765 2026-11-12 01:31:51
185.168.86.0/23 19,746 2026-11-12 01:31:51
193.239.88.0/22 19,734 2026-11-12 01:31:51
185.168.85.0/24 19,723 2026-11-12 01:31:51
185.62.208.0/22 19,703 2026-11-12 01:31:51
185.2.24.0/22 19,686 2026-11-12 01:31:51
185.52.212.0/22 19,674 2026-11-12 01:31:51
193.30.6.0/23 19,651 2026-11-12 01:31:51
195.69.72.0/22 19,622 2026-11-12 01:31:51
185.185.164.0/22 19,606 2026-11-12 01:31:51
84.38.239.0/24 17,178 2026-09-25 17:04:57
195.69.74.0/24 16,123 2026-09-14 13:47:40
83.136.19.0/24 15,555 2026-11-12 03:26:34
83.136.17.0/24 15,335 2026-11-12 03:26:34
83.136.18.0/24 15,303 2026-11-12 03:26:34
193.36.186.0/24 14,820 2026-11-12 01:31:51
185.88.188.0/22 13,812 2026-11-12 01:31:51
194.56.84.0/22 13,398 2026-11-12 01:31:51
185.89.18.0/23 10,640 2026-09-11 08:02:57
83.143.185.0/24 7,586 2026-07-06 10:58:46
185.226.136.0/24 5,177 2026-10-06 14:08:19
185.139.148.0/24 5,048 2026-08-07 14:30:19
84.38.238.0/24 3,048 2026-06-10 12:57:31
81.26.219.0/24 2,931 2026-07-27 06:25:17
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 57.1K IPv4 addresses distributed across 36 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: 2026-11-12 03:24:06 UTC
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