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Summary IP address summary information Name
Washington University Country
Website
Hosted domains
111 IPv4 addresses
73,984 IPv6 addresses
1.58 × 1029 ASN type
Education Registry
ARIN Allocated
33 years ago on Mar 16, 1993 Updated
14 years ago on Apr 2, 2012
WHOIS
ASHandle: █████
OrgID: █████
ASName: ██████
ASNumber: AS█████
RegDate: ████-██-██
Updated: ████-██-██
TechHandle: ████-████
Source: ████
Powered by ASN to WHOIS data Important routers in AS2552
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 AS2552 at robtex .
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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 -f5 128.252.99.236
traceroute to 128.252.99.236 (128.252.99.236 ): 64 hops max, 52 byte packets
Measurement taken from IPinfo ProbeNet in Chicago, US
On October 16, 2026
Netblock Company Num of IPs Washington University
65,536 Washington University
8,192 Washington University
256
Powered by IP Ranges data There are 4 peers for this ASN.
ASN Name Rank AS174 Cogent Communications, LLC #6 AS1239 Cogent Communications, LLC AS3356 Level 3 Parent, LLC #2 AS11537 Internet2 #337
There are 2 upstreams for this ASN.
ASN Name Rank AS174 Cogent Communications, LLC #6 AS3356 Level 3 Parent, LLC #2
There are 0 downstreams for this ASN.
No downstreams found.
Important routers in AS2552 Share of IPv4 footprint per hexagon Less More
Held location over 90 days 88%
Held location over 1 year 81%
Median days between moves 49 days
Geolocation scope National How consistently this network's IPs hold their geolocation. Read relative to the network type, not as a quality score.
There are 111 domain names hosted across 45 IP addresses on this ASN.
Pingable IPs 118 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more
IP Address ASN Details 65.254.111.100 Ping AS2552 Washington University #15,113 12.88ms from Chicago, US 128.252.208.48 Ping AS2552 Washington University #15,113 6.50ms from Chicago, US 128.252.183.253 Ping AS2552 Washington University #15,113 7.62ms from Chicago, US 128.252.53.133 Ping AS2552 Washington University #15,113 7.49ms from Chicago, US 128.252.146.150 Ping AS2552 Washington University #15,113 6.29ms from Chicago, US 128.252.44.57 Ping AS2552 Washington University #15,113 6.17ms from Chicago, US 128.252.236.2 Ping AS2552 Washington University #15,113 7.24ms from Chicago, US 128.252.100.247 Ping AS2552 Washington University #15,113 6.11ms from Chicago, US 128.252.88.109 Ping AS2552 Washington University #15,113 6.08ms from Chicago, US 128.252.93.128 Ping AS2552 Washington University #15,113 6.08ms from Chicago, US
Show more
Activity A pronounced day/night rhythm — the signature of a consumer/eyeball network whose users sleep at night.
Places IPs in this network linked to physical places, based on their Wi-Fi networks.
Places IPs 31 27 4 New IPinfo Places identifies hotels, airports, stadiums, and more with building-level precision.
Explore Places Times shown in United States local time (UTC-6). Less More
Peak hour 09:00–10:00
Active hours 15 hrs
Weekend vs weekday weekdays heavier
Busiest day Tue
Network type Education
Geography United States 
University
Business Services