AS2552

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Summary

IP address summary information
Name	Washington University
Country	United States
Website	host.io/wustl.edu·wustl.edu
Hosted domains	108
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

Ranking

#15,165

Overall rank

among 74,666 networks

Traffic

#9,463

Infrastructure

#12,989

#2,493inUnited States

Learn how ASN rankings work

Geolocation

Share of IPv4 footprint per hexagonLessMore

Countries by IPv4 share

United States
100%

Held location over 90 days: 80%
Held location over 1 year: 81%
Median days between moves: 29 days
Geolocation scope: National

How consistently this network's IPs hold their geolocation. Read relative to the network type, not as a quality score.

Activity

A pronounced day/night rhythm — the signature of a consumer/eyeball network whose users sleep at night.

Mon

IP Ranges

Netblock	Company	Num of IPs
128.252.0.0/16	Washington University	65,536
65.254.96.0/19	Washington University	8,192
192.31.46.0/24	Washington University	256

IP Ranges

WHOIS


  ASHandle:       █████
  OrgID:          █████
  ASName:         ██████
  ASNumber:       AS█████
  RegDate:        ████-██-██
  Updated:        ████-██-██
  TechHandle:     ████-████
  Source:         ████

Hosted Domains

There are 108 domain names hosted across 41 IP addresses on this ASN.

IP Address	Domain	Count
128.252.146.52		28
128.252.167.136		19
128.252.35.111		5
128.252.93.181		4
128.252.146.79		4

Places

IPs in this network linked to physical places, based on their Wi-Fi networks.

Places IPs26
University23
Retail2
Business Services1

Category	In AS2552	Example IP
University	23	128.252.154.17
Retail	2	65.254.111.221
Business Services	1

Places

Peers

There are 3 peers for this ASN.

ASN	Name	Rank
AS174	Cogent Communications, LLC
AS3356	Level 3 Parent, LLC
AS11537	Internet2

Upstreams

There are 2 upstreams for this ASN.

ASN	Name	Rank
AS174	Cogent Communications, LLC
AS3356	Level 3 Parent, LLC

Downstreams

There are 0 downstreams for this ASN.

No downstreams found.

Pingable IPs

118 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more

IP Address	ASN	Details
128.252.85.254 Ping	AS2552Washington University	11.47ms from Chicago, US
128.252.13.13 Ping	AS2552Washington University	8.21ms from Chicago, US
128.252.217.14 Ping	AS2552Washington University	8.31ms from Chicago, US
65.254.96.188 Ping	AS2552Washington University	8.09ms from Chicago, US
128.252.142.254 Ping	AS2552Washington University	11.21ms from Chicago, US
128.252.3.162 Ping	AS2552Washington University	9.33ms from Chicago, US
65.254.97.131 Ping	AS2552Washington University	8.06ms from Chicago, US
65.254.100.90 Ping	AS2552Washington University	7.90ms from Chicago, US
128.252.100.244 Ping	AS2552Washington University	8.23ms from Chicago, US
128.252.205.253 Ping	AS2552Washington University	8.37ms from Chicago, US

Other Pingable IPs

IP Address	ASN	Details

Pingable IPs

Important routers in AS2552


128.252.41.217	University City, United States
128.252.188.5	University City, United States
128.252.1.63	University City, United States
128.252.1.43	University City, United States
128.252.188.13	University City, United States
128.252.100.225	University City, United States
128.252.188.9	University City, United States
128.252.100.213	University City, United States
128.252.188.1	University City, United States
128.252.88.93	University City, United States

Important routers in AS2552

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.Traceroute →

$ traceroute -a -n -q1 -m12 128.252.43.142

traceroute to 128.252.43.142 (128.252.43.142): 12 hops max, 52 byte packets

1 [AS58329] 45.155.249.3 0.318 ms

2 [AS58329] 79.132.129.16 0.399 ms

3 [AS174] 149.6.110.20 1.118 ms

4 [AS174] 154.25.10.129 2.012 ms

5 [AS174] 154.54.72.189 8.818 ms

6 [AS174] 154.54.166.122 73.824 ms

7 [AS174] 154.54.30.121 77.441 ms

8 [AS174] 154.54.45.178 79.139 ms

9 [AS174] 38.142.4.162 79.16 ms

10 *

11 *

12 *

Measurement taken from

IPinfo ProbeNet in The Hague, NL

On September 24, 2026

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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AS2552

Summary

Ranking

Geolocation

Countries by IPv4 share

Activity

IP Ranges

IP Ranges

WHOIS

Hosted Domains

Places

Places

Peers

Upstreams

Downstreams

Pingable IPs

Other Pingable IPs

Pingable IPs

Important routers in AS2552

Important routers in AS2552

Traceroute

Related Networks

AS136

AS17004

AS17111

AS18807

AS394957

What is an ASN?

An API built with users in mind: reliable, accurate, and easy-to-use

Our IP tools

What is my IP?

Map IPs

Summarize IPs

Traceroute

Ranking

IP Ranges

Important routers in AS2552

Geolocation

Countries by IPv4 share

Pingable IPs

Other Pingable IPs

Activity

Places

AS136

AS17004

AS17111

AS18807

AS394957

AS395159