Autonomous System details

AS2

University of Delaware  ·  udel.edu

United States

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AS2 – University of Delaware

Field Value
Country United States
Website udel.edu
Hosted domains 16
IPv4 addresses 69,632
IPv6 addresses 0
ASN type Education
Registry arin
Allocated 35 years ago on Jan 10, 1991
Updated 2 years ago on Nov 08, 2023

IP Ranges

Netblock Company Num of IPs
128.4.0.0/16 University of Delaware 65,536
91.143.144.0/20 South telephone company LLC 4,096

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS2
                                                OrgID:          AS2
                                                ASName:         AS2
                                                ASNumber:       AS2
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 16 domain names hosted across 9 IP addresses on this ASN.

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IP Address Domain Domains on this IP
128.4.31.8 ██████████ 8
91.143.148.26 ████████ 1
128.4.31.86 ██████████ 1
128.4.20.226 ██████████ 1
128.4.31.222 ████████ 1
91.143.157.140 ████████ 1
91.143.148.178 ██████████ 1
91.143.148.250 █████████ 1
128.4.31.87 ██████████ 1

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Peers

There are 23 peers for this ASN.

Peers Name
AS134599 Digital Dot Net (DDN)
AS136617 Fortune Telecom Company Limited
AS137453 Orange Communication
AS139928 Third Wave Technologies Ltd
AS152057 PT Dinoki Wayae Yoshe
AS199268 LANCOM inzeniring racunalniskig sistemov d.o.o.
AS203794 LLC Gals-Telecom
AS24213 PT. Arsen Kusuma Indonesia
AS266625 WCA TELECOM
AS266674 Cooperativa Eléctrica de Las Perdices Ltda.
AS266893 MULTIMEDIA NETWORK, S.A. DE C.V.
AS270792 luciano comin cardozo-me
AS29091 ipNX Nigeria Limited
AS34 University of Delaware
AS37254 Green Flash Trading
AS37302 Dube TradePort
AS37613 DOLPHIN TELECOMMUNICATION LIMITED
AS37628 KAB Technologies
AS41837 "South telephone company" LLC
AS4622 Indonesia Network Information Center
AS52752 Vegas Telecom Informática Ltda.
AS59362 KS Network Limited
AS63515 Indonesia Network Information Center
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Upstreams

There are 8 upstreams for this ASN.

upstreams Name
AS203794 LLC Gals-Telecom
AS266625 WCA TELECOM
AS266674 Cooperativa Eléctrica de Las Perdices Ltda.
AS266893 MULTIMEDIA NETWORK, S.A. DE C.V.
AS270792 luciano comin cardozo-me
AS34 University of Delaware
AS37302 Dube TradePort
AS41837 "South telephone company" LLC
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Downstreams

There are 2 downstreams for this ASN.

Downstreams Name
AS152057 PT Dinoki Wayae Yoshe
AS63515 Indonesia Network Information Center
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Pingable IPs

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

IP Address ASN Details
91.143.159.9 AS2 University of Delaware 22.28ms from Moscow, RU
128.4.31.222 AS2 University of Delaware 4.63ms from Reston, US
91.143.144.57 AS2 University of Delaware 20.64ms from Moscow, RU
91.143.155.1 AS2 University of Delaware 26.32ms from Moscow, RU
128.4.41.1 AS2 University of Delaware 4.82ms from Reston, US
91.143.151.100 AS2 University of Delaware 22.98ms from Moscow, RU
91.143.146.191 AS2 University of Delaware 22.06ms from Moscow, RU
128.4.10.227 AS2 University of Delaware 4.73ms from Ashburn, US
91.143.148.29 AS2 University of Delaware 20.35ms from Moscow, RU
91.143.149.246 AS2 University of Delaware 22.78ms from Moscow, RU
128.4.33.254 AS2 University of Delaware 4.43ms from Reston, US
128.4.5.217 AS2 University of Delaware 4.68ms from Reston, US
91.143.157.75 AS2 University of Delaware 21.14ms from Moscow, RU
91.143.156.33 AS2 University of Delaware 20.08ms from Moscow, RU
91.143.147.90 AS2 University of Delaware 22.38ms from Moscow, RU
91.143.158.37 AS2 University of Delaware 20.03ms from Moscow, RU
128.4.30.133 AS2 University of Delaware 4.48ms from Reston, US
91.143.150.28 AS2 University of Delaware 22.30ms from Moscow, RU
128.4.23.175 AS2 University of Delaware 4.86ms from Reston, US
128.4.21.110 AS2 University of Delaware 4.73ms from Reston, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
118.229.3.2 AS4538 China Education and Research Network Center 2.92ms from Beijing, CN
111.201.102.178 AS4808 China Unicom Beijing Province Network 3.50ms from Beijing, CN
34.219.126.18 AS16509 Amazon.com, Inc. 0.15ms from Boardman, US
37.189.65.66 AS3243 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A. 4.13ms from Braga, PT
3.148.35.66 AS16509 Amazon.com, Inc. 0.78ms from Columbus, US
151.53.27.66 AS1267 WIND TRE S.P.A. 6.47ms from Crotone, IT
209.91.109.178 AS852 TELUS Communications Inc. 0.70ms from Edmonton, CA
189.253.99.226 AS8151 UNINET 4.48ms from Guadalajara, MX
8.215.86.18 AS45102 Alibaba (US) Technology Co., Ltd. 0.69ms from Jakarta, ID
103.162.234.18 AS141732 Aone Network Pvt. Ltd 3.56ms from Kathmandu, NP
192.238.222.130 AS138995 Antbox Networks Limited 1.05ms from Kuala Lumpur, MY
88.21.112.66 AS3352 TELEFONICA DE ESPANA S.A.U. 9.68ms from Madrid, ES
62.110.53.82 AS3269 Telecom Italia S.p.A. 3.95ms from Milan, IT
38.96.16.242 AS174 Cogent Communications, LLC 0.69ms from New York City, US
104.90.83.50 AS16625 Akamai Technologies, Inc. 0.16ms from Philadelphia, US
131.153.69.34 AS20454 SECURED SERVERS LLC 0.32ms from Phoenix, US
3.163.179.162 AS16509 Amazon.com, Inc. 0.49ms from Seattle, US
220.70.136.146 AS4766 Korea Telecom 4.34ms from Seoul, KR
217.21.226.18 AS29672 S:t Erik Kommunikation AB 0.85ms from Stockholm, SE
175.98.174.130 AS9924 Taiwan Fixed Network, Telco and Network Service Provider. 1.34ms from Taipei, TW
169.155.243.210 AS14593 Space Exploration Technologies Corporation 12.78ms from Warsaw, PL
213.62.155.82 AS2686 AT&T Enterprises, LLC 0.58ms from Amsterdam, NL
103.102.8.34 AS13984 SD Data Center 0.22ms from Ashburn, US
131.96.208.2 AS10631 Georgia State University 0.22ms from Atlanta, US
157.96.139.50 AS16504 Granite Telecommunications LLC 1.00ms from Atlanta, US

Traceroute

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

$
traceroute -a -n -q1 -f2 -m9 128.4.80.153
traceroute to 128.4.80.153 (128.4.80.153): 9 hops max, 52 byte packets
3 *
4 *
5 *
6 [AS174] 154.54.169.177 22.981 ms
7 *
8 *
9 *
Measurement taken from IPinfo ProbeNet in Jacksonville, US
On

Related Networks

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 AS2 at robtex.

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