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What is an ASN? Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.
The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS203958 at robtex .
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Stub AS
Stub AS 1 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more
Other Pingable IPs IP Address ASN Details 189.15.66.198 Ping AS53006 ALGAR TELECOM S/A #189 6.11ms from Barueri, BR 68.145.41.54 Ping AS6327 Shaw Communications #81 4.69ms from Calgary, CA 222.237.117.22 Ping AS9318 SK Broadband Co Ltd #40 7.12ms from Incheon, KR 217.57.48.246 Ping AS3269 Telecom Italia S.p.A. #41 4.26ms from Milan, IT 182.99.166.86 Ping AS4134 CHINANET BACKBONE #5 3.50ms from Nanchang, CN 192.111.93.182 Ping AS393262 Todyl, Inc. #26,729 0.22ms from Toronto, CA 117.235.151.70 Ping AS9829 National Internet Backbone #36 11.45ms from Delhi, IN 39.174.153.102 Ping AS56041 China Mobile communications corporation #398 8.98ms from Hangzhou, CN 23.99.116.230 Ping AS8075 Microsoft Corporation #235 0.32ms from Hong Kong, HK 1.229.191.102 Ping AS9318 SK Broadband Co Ltd #40 1.73ms from Incheon, KR
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Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more. Traceroute →
$ traceroute -a -n -q1 -f4 -m18 194.187.55.232
traceroute to 194.187.55.232 (194.187.55.232 ): 18 hops max, 52 byte packets
Measurement taken from IPinfo ProbeNet in Zuerich, CH
On November 13, 2026
Neighbours by global rank Log scale. The dashed line marks this network.
Powered by IP to ASN data IPs in this network linked to physical places, based on their Wi-Fi networks.
Places IPs 1 1 New IPinfo Places identifies hotels, airports, stadiums, and more with building-level precision.
Explore Places There are 1 peers for this ASN.
ASN Name Rank AS12324 Maria Curie-Sklodowska University #7,462
There are 1 upstreams for this ASN.
ASN Name Rank AS12324 Maria Curie-Sklodowska University #7,462
There are 0 downstreams for this ASN.
No downstreams found.
Important routers in AS203958 Share of IPv4 footprint per hexagon Less More
Held location over 90 days 100%
Held location over 1 year 98%
Median days between moves 256 days
Geolocation scope City How consistently this network's IPs hold their geolocation. Read relative to the network type, not as a quality score.
There are 11 domain names hosted across 6 IP addresses on this ASN.
A pronounced day/night rhythm — the signature of a consumer/eyeball network whose users sleep at night.
Times shown in Poland local time (UTC+1). Less More
Peak hour 11:00–12:00
Active hours 17 hrs
Weekend vs weekday weekdays heavier
Busiest day Tue
Network type Education
Geography Poland 
Museum