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WorldIP.io
Autonomous System

AS15576

NTS workspace AG

Announced IPs
46,592
CIDR prefixes
38
ASN
AS15576

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 Balanced
Peering policy Selective
IRR record RIPE::AS15576:AS-NTS

Present at 6 internet exchanges: SwissIX: Peering, AMS-IX, RomandIX: Romandix Lan, CIXP, VIX, BIX

AS15576 — global IP footprint

Cities where AS15576 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

View on 3D globe →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
212.103.64.0/19 8.2K
23.7%
NTS workspace AG CH Bern Bern
217.11.208.0/20 4.1K
41.6%
NTS workspace AG CH Aargau Eiken
217.68.224.0/20 4.1K
0.6%
NTS workspace AG CH — —
217.146.160.0/20 4.1K
4.1%
NTS workspace AG CH Zurich Adliswil
77.95.120.0/21 2.0K
18.7%
NTS workspace AG CH — —
85.118.216.0/21 2.0K
0.0%
NTS workspace AG CH — —
87.237.168.0/21 2.0K
96.2%
NTS workspace AG CH Vaud Avenches
94.126.248.0/21 2.0K
74.4%
NTS workspace AG CH Bern Hünibach
188.92.224.0/21 2.0K
12.4%
NTS workspace AG CH — —
217.197.128.0/21 2.0K
41.1%
NTS workspace AG CH — —
88.214.4.0/22 1.0K
0.0%
NTS workspace AG CH — —
185.63.148.0/22 1.0K
0.4%
NTS workspace AG CH — —
185.75.152.0/22 1.0K
1.2%
NTS workspace AG CH Zug Baar
185.79.200.0/22 1.0K
0.1%
NTS workspace AG CH — —
185.98.152.0/22 1.0K
7.0%
NTS workspace AG CH — —
185.218.240.0/22 1.0K
0.3%
NTS workspace AG CH — —
185.254.76.0/22 1.0K
25.0%
NTS workspace AG CH — —
193.138.212.0/22 1.0K
5.1%
NTS workspace AG CH — —
94.176.192.0/23 512
1.2%
NTS workspace AG CH — —
185.187.120.0/23 512
1.0%
NTS workspace AG CH Bern Zollikofen
185.253.192.0/23 512
2.1%
NTS workspace AG CH — —
195.189.252.0/23 512
5.1%
NTS workspace AG CH — —
203.56.114.0/23 512
98.8%
NTS workspace AG CH — —
91.198.79.0/24 256
5.1%
NTS workspace AG CH — —
91.199.198.0/24 256
3.1%
NTS workspace AG CH — —
185.63.148.0/24 256
0.4%
NTS workspace AG CH — —
193.17.76.0/24 256
21.1%
NTS workspace AG CH — —
193.43.27.0/24 256
4.7%
NTS workspace AG CH — —
193.43.183.0/24 256
7.0%
NTS workspace AG CH — —
193.47.103.0/24 256
11.3%
NTS workspace AG CH — —
193.47.190.0/24 256
5.1%
NTS workspace AG CH — —
193.104.116.0/24 256
0.4%
NTS workspace AG CH — —
193.200.157.0/24 256
3.5%
NTS workspace AG CH — —
193.222.138.0/24 256
39.8%
NTS workspace AG CH — —
194.11.160.0/24 256
0.0%
NTS workspace AG CH — —
194.153.94.0/24 256
3.9%
NTS workspace AG CH — —
194.176.116.0/24 256
5.9%
NTS workspace AG CH — —
195.137.172.0/24 256
23.0%
NTS workspace AG CH — —
195.216.227.0/24 256
8.2%
NTS workspace AG CH — —

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS15576 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
195.216.227.0/24 766,075 2026-11-09 10:09:34
193.138.212.0/22 765,923 2026-11-09 10:09:34
217.146.160.0/20 763,690 2026-11-09 10:09:34
217.197.128.0/21 759,379 2026-11-09 10:09:35
185.75.152.0/22 324,427 2026-11-09 10:08:33
195.137.172.0/24 321,863 2026-11-09 10:08:33
185.79.202.0/23 321,009 2026-11-09 10:08:33
185.187.120.0/23 319,947 2026-11-09 10:08:33
88.214.4.0/22 312,815 2026-11-09 10:08:33
185.218.240.0/22 310,044 2026-11-09 10:08:33
217.68.224.0/20 308,945 2026-11-09 10:08:33
94.176.192.0/23 307,637 2026-11-09 10:08:33
193.43.27.0/24 304,315 2026-11-09 10:08:33
193.222.138.0/24 303,343 2026-11-09 10:08:33
193.104.116.0/24 297,832 2026-11-09 10:08:33
195.189.252.0/23 282,707 2026-11-09 10:08:33
185.79.200.0/23 281,939 2026-11-09 10:08:33
188.92.224.0/21 276,902 2026-11-09 10:08:33
185.254.76.0/22 275,062 2026-11-09 10:08:33
193.47.103.0/24 270,973 2026-11-09 10:08:33
91.199.198.0/24 270,222 2026-11-09 10:08:33
193.43.183.0/24 253,770 2026-11-09 10:08:33
185.253.192.0/23 243,167 2026-11-09 10:08:33
185.63.148.0/24 225,622 2026-11-09 10:08:33
194.176.116.0/24 220,678 2026-11-09 10:08:33
91.198.79.0/24 213,730 2026-11-09 10:08:33
193.47.190.0/24 212,790 2026-11-09 10:08:33
193.17.76.0/24 204,014 2026-11-09 10:08:33
193.200.157.0/24 194,241 2026-11-09 10:08:33
185.98.152.0/22 194,189 2026-11-09 10:08:33
194.153.94.0/24 189,716 2026-11-09 10:08:33
203.56.114.0/23 179,546 2026-11-09 10:08:33
193.8.77.0/24 115,504 2026-07-30 09:34:55
77.95.120.0/21 81,210 2026-11-09 09:59:34
87.237.168.0/22 71,597 2026-11-09 09:49:10
217.11.208.0/20 67,617 2026-11-09 09:49:10
212.103.64.0/19 66,198 2026-11-09 09:49:10
85.118.216.0/21 60,162 2026-11-09 09:49:10
87.237.172.0/22 58,281 2026-11-09 09:49:10
94.126.248.0/21 56,696 2026-11-09 09:49:10
194.11.160.0/24 17,035 2026-11-09 08:53:51
212.103.64.0/24 16,328 2026-11-09 08:54:54
91.198.229.0/24 12,347 2026-10-04 01:35:50
185.63.149.0/24 610 2026-11-08 11:58:57
185.63.150.0/23 607 2026-11-08 11:58:57
91.198.229.9/32 64 2026-07-14 03:00:04
212.103.89.211/32 9 2026-07-08 21:09:53
91.198.229.128/32 7 2026-06-04 12:18:11
217.11.217.147/32 6 2026-07-08 21:09:53

Showing top 49 of 50 announced prefixes by sample volume.

Frequently Asked Questions

What is AS15576?

AS15576 is an Autonomous System Number assigned to NTS workspace AG. 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 AS15576 announce?

AS15576 announces 46.6K IPv4 addresses distributed across 38 routed CIDR prefixes. The network is registered in Switzerland.

Who operates AS15576?

AS15576 is operated by NTS workspace AG. The organization is based in Switzerland. You can view all IP ranges and related ASNs on the organization page.

What country is AS15576 registered in?

AS15576 is registered in Switzerland. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-11-09 10:09:05 UTC
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