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Autonomous System

AS15576

NTS workspace AG

Announced IPs
46,848
CIDR prefixes
40
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.

53/100
Caution
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 1 MOAS prefix — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS15576 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.

PrefixOrigin ASNsLast detected (UTC)
0.0.0.0/0 AS15576, AS212271 2026-07-23 21:23:42

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
23.8%
NTS workspace AG CH Bern Bern
217.11.208.0/20 4.1K
39.3%
NTS workspace AG CH Aargau Eiken
217.68.224.0/20 4.1K
0.5%
NTS workspace AG CH
217.146.160.0/20 4.1K
3.9%
NTS workspace AG CH Aargau Frick
77.95.120.0/21 2.0K
17.6%
NTS workspace AG CH
85.118.216.0/21 2.0K
0.0%
NTS workspace AG CH
87.237.168.0/21 2.0K
96.0%
NTS workspace AG CH Aargau Stetten
94.126.248.0/21 2.0K
69.1%
NTS workspace AG CH Bern Hünibach
188.92.224.0/21 2.0K
12.1%
NTS workspace AG CH
217.197.128.0/21 2.0K
40.1%
NTS workspace AG CH
87.237.172.0/22 1.0K
98.9%
NTS workspace AG CH Aargau Stetten
88.214.4.0/22 1.0K
0.0%
NTS workspace AG CH
185.63.148.0/22 1.0K
0.0%
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
5.9%
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
5.4%
NTS workspace AG CH
94.176.192.0/23 512
1.0%
NTS workspace AG CH
185.187.120.0/23 512
1.0%
NTS workspace AG CH Bern Zollikofen
185.253.192.0/23 512
2.3%
NTS workspace AG CH Bern Köniz
195.189.252.0/23 512
4.9%
NTS workspace AG CH
203.56.114.0/23 512
99.6%
NTS workspace AG CH
91.198.79.0/24 256
4.7%
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
193.8.77.0/24 256
0.0%
NTS workspace AG CH
193.17.76.0/24 256
20.3%
NTS workspace AG CH
193.43.27.0/24 256
4.7%
NTS workspace AG CH
193.43.183.0/24 256
6.3%
NTS workspace AG CH
193.47.103.0/24 256
0.4%
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
37.9%
NTS workspace AG CH
194.11.160.0/24 256
0.0%
NTS workspace AG CH
194.153.94.0/24 256
3.1%
NTS workspace AG CH
194.176.116.0/24 256
5.9%
NTS workspace AG CH
195.137.172.0/24 256
21.5%
NTS workspace AG CH
195.216.227.0/24 256
7.0%
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
195.216.227.0/24 279,827 2026-07-23 21:29:26
193.138.212.0/22 279,757 2026-07-23 21:29:26
217.146.160.0/20 278,945 2026-07-23 21:29:26
217.197.128.0/21 277,300 2026-07-23 21:29:26
185.75.152.0/22 129,332 2026-07-23 21:28:27
185.79.202.0/23 127,433 2026-07-23 21:28:27
195.137.172.0/24 126,985 2026-07-23 21:28:27
185.187.120.0/23 125,814 2026-07-23 21:28:27
88.214.4.0/22 123,709 2026-07-23 21:28:27
185.218.240.0/22 122,624 2026-07-23 21:28:27
217.68.224.0/20 120,636 2026-07-23 21:28:27
193.43.27.0/24 120,511 2026-07-23 21:28:27
94.176.192.0/23 119,621 2026-07-23 21:28:27
193.104.116.0/24 117,854 2026-07-23 21:28:27
185.79.200.0/23 110,698 2026-07-23 21:28:27
195.189.252.0/23 110,160 2026-07-23 21:28:27
188.92.224.0/21 107,858 2026-07-23 21:28:27
185.254.76.0/22 107,176 2026-07-23 21:28:27
193.47.103.0/24 106,488 2026-07-23 21:28:27
91.199.198.0/24 105,305 2026-07-23 21:28:27
193.8.77.0/24 104,618 2026-07-23 21:28:27
193.43.183.0/24 98,925 2026-07-23 21:28:27
193.222.138.0/24 98,513 2026-07-23 21:28:27
185.253.192.0/23 94,442 2026-07-23 21:28:27
185.63.148.0/24 86,267 2026-07-23 21:28:27
194.176.116.0/24 83,844 2026-07-23 21:28:27
193.47.190.0/24 79,697 2026-07-23 21:28:27
91.198.79.0/24 77,946 2026-07-23 21:28:27
193.17.76.0/24 74,309 2026-07-23 21:28:27
193.200.157.0/24 70,555 2026-07-23 21:28:27
185.98.152.0/22 70,281 2026-07-23 21:28:27
194.153.94.0/24 67,378 2026-07-23 21:28:27
203.56.114.0/23 65,767 2026-07-23 21:28:27
77.95.120.0/21 29,887 2026-07-23 21:20:53
87.237.168.0/22 26,796 2026-07-23 21:20:53
217.11.208.0/20 24,995 2026-07-23 21:20:53
212.103.64.0/19 24,453 2026-07-23 21:20:53
85.118.216.0/21 21,945 2026-07-23 21:20:53
87.237.172.0/22 21,051 2026-07-23 21:20:53
94.126.248.0/21 20,359 2026-07-23 21:20:53
194.11.160.0/24 4,799 2026-07-23 20:30:57
212.103.64.0/24 4,215 2026-07-23 20:30:58
185.63.150.0/23 170 2026-07-23 15:51:50
185.63.149.0/24 170 2026-07-23 15:51:50
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
0.0.0.0/0 1 2026-06-09 23:01:56

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 46.8K IPv4 addresses distributed across 40 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: 2026-07-23 21:25:31 UTC
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