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Summary IP address summary information Name
Stichting Centrum voor Wiskunde en Informatica Country
Website
Hosted domains
28 IPv4 addresses
1,280 IPv6 addresses
0 ASN type
Education Registry
RIPE Allocated
56 years ago on Jan 1, 1970 Updated
8 years ago on Nov 15, 2017
WHOIS
ASHandle: █████
OrgID: █████
ASName: ██████
ASNumber: AS█████
RegDate: ████-██-██
Updated: ████-██-██
TechHandle: ████-████
Source: ████
Powered by ASN to WHOIS data Important routers in AS1888
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 AS1888 at robtex .
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Stub AS
Stub AS
Pingable IPs 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 67.175.37.144 Ping AS7922 Comcast Cable Communications, LLC #1 3.39ms from Chicago, US 113.3.194.208 Ping AS4837 CHINA UNICOM China169 Backbone #10 5.14ms from Harbin, CN 104.33.151.80 Ping AS20001 Charter Communications Inc #89 5.73ms from Los Angeles, US 98.254.150.176 Ping AS7922 Comcast Cable Communications, LLC #1 10.41ms from Miami, US 187.74.11.16 Ping AS27699 TELEFÔNICA BRASIL S.A #30 4.23ms from Osasco, BR 46.153.245.224 Ping AS35819 Etihad Etisalat, a joint stock company #84 3.26ms from Riyadh, SA 189.230.96.208 Ping AS8151 Uninet S.A. de C.V. #4 16.91ms from Santiago de Queretaro, MX 102.40.17.64 Ping AS8452 TE-AS #17 3.96ms from Cairo, EG 18.134.78.208 Ping AS16509 Amazon.com, Inc. #24 0.18ms from London, GB 217.76.255.0 Ping AS216135 Fibrasur Operadores S.L. #29,779 7.60ms from Madrid, ES
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Traceroute Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more. Traceroute →
$ traceroute -a -n -q1 -f4 -m12 192.16.184.229
traceroute to 192.16.184.229 (192.16.184.229 ): 12 hops max, 52 byte packets
Measurement taken from IPinfo ProbeNet in London, GB
On September 17, 2026
Netblock Company Num of IPs Stichting Centrum voor Wiskunde en Informatica
512 Stichting Centrum voor Wiskunde en Informatica
256 Stichting Centrum voor Wiskunde en Informatica
256 Stichting Centrum voor Wiskunde en Informatica
256
Powered by IP Ranges data
There are 1 peers for this ASN.
ASN Name Rank AS1103 SURF B.V. #373
There are 1 upstreams for this ASN.
ASN Name Rank AS1103 SURF B.V. #373
There are 0 downstreams for this ASN.
No downstreams found.
Share of IPv4 footprint per hexagon Less More
Held location over 90 days 100%
Held location over 1 year 100%
Median days between moves 1,212 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 28 domain names hosted across 6 IP addresses on this ASN.
Activity A pronounced day/night rhythm — the signature of a consumer/eyeball network whose users sleep at night.
Times shown in Netherlands local time (UTC+1). Less More
Peak hour 10:00–11:00
Active hours 10 hrs (business hours)
Weekend vs weekday weekdays heavier
Busiest day Thu
Network type Education
Geography Netherlands 
