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 69,888
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
177.84.48.0/24 SCHIVAS TELECOM LTDA 256

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
128.4.31.87 ██████████ 1
91.143.148.26 ████████ 1
128.4.20.226 ██████████ 1
91.143.148.250 █████████ 1
128.4.31.86 ██████████ 1
91.143.157.140 ████████ 1
91.143.148.178 ██████████ 1
128.4.31.222 ████████ 1

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Peers

There are 25 peers for this ASN.

Peers Name
AS139928 Third Wave Technologies Ltd
AS203794 LLC Gals-Telecom
AS262579 GE Network Provedor de Internet LTDA
AS262706 Ultranet Telecomunicações Ltda
AS264075 K1 Telecom e Multimidia LTDA
AS265304 Brdsoft Solucoes de T.i e Telecomunicacoes LTDA
AS265398 nobre telecom ltda
AS266625 WCA TELECOM
AS266674 Cooperativa Eléctrica de Las Perdices Ltda.
AS266893 MULTIMEDIA NETWORK, S.A. DE C.V.
AS271529 ONLINE TELECOM.IP LTDA ME
AS271662 ULTRAXX SERVICOS DE CONECTIVIDADE LTDA
AS29049 Delta Telecom Ltd
AS29091 ipNX Nigeria Limited
AS31133 PJSC MegaFon
AS34 University of Delaware
AS37613 DOLPHIN TELECOMMUNICATION LIMITED
AS37628 KAB Technologies
AS41837 "South telephone company" LLC
AS49666 Telecommunication Infrastructure Company
AS52640 USCM - COMUNICACAO MULTIMIDIA LTDA.
AS52752 Vegas Telecom Informática Ltda.
AS53142 Friburgo Online LTDA ME
AS59362 KS Network Limited
AS8529 Zain Omantel International FZ-LLC
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Upstreams

There are 10 upstreams for this ASN.

upstreams Name
AS203794 LLC Gals-Telecom
AS262579 GE Network Provedor de Internet LTDA
AS266625 WCA TELECOM
AS266674 Cooperativa Eléctrica de Las Perdices Ltda.
AS266893 MULTIMEDIA NETWORK, S.A. DE C.V.
AS271529 ONLINE TELECOM.IP LTDA ME
AS271662 ULTRAXX SERVICOS DE CONECTIVIDADE LTDA
AS34 University of Delaware
AS41837 "South telephone company" LLC
AS53142 Friburgo Online LTDA ME
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Downstreams

There are 3 downstreams for this ASN.

Downstreams Name
AS265304 Brdsoft Solucoes de T.i e Telecomunicacoes LTDA
AS265398 nobre telecom ltda
AS52640 USCM - COMUNICACAO MULTIMIDIA LTDA.
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Pingable IPs

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

IP Address ASN Details
91.143.157.131 AS2 University of Delaware 20.05ms from Moscow, RU
91.143.159.253 AS2 University of Delaware 21.30ms from Moscow, RU
91.143.155.1 AS2 University of Delaware 21.50ms from Moscow, RU
91.143.144.16 AS2 University of Delaware 21.29ms from Moscow, RU
91.143.152.1 AS2 University of Delaware 26.01ms from Samara, RU
91.143.150.28 AS2 University of Delaware 21.53ms from Moscow, RU
128.4.41.1 AS2 University of Delaware 4.62ms from Reston, US
91.143.151.22 AS2 University of Delaware 21.37ms from Moscow, RU
91.143.158.50 AS2 University of Delaware 20.19ms from Moscow, RU
91.143.149.241 AS2 University of Delaware 22.74ms from Moscow, RU
91.143.147.90 AS2 University of Delaware 21.66ms from Moscow, RU
128.4.33.3 AS2 University of Delaware 4.38ms from Reston, US
177.84.48.33 AS2 University of Delaware 3.18ms from Joao Pessoa, BR
91.143.146.166 AS2 University of Delaware 21.27ms from Moscow, RU
91.143.148.161 AS2 University of Delaware 20.00ms from Moscow, RU
91.143.156.34 AS2 University of Delaware 22.02ms from Moscow, RU

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
97.219.147.34 AS6167 Verizon Business 11.76ms from Atlanta, US
110.241.203.98 AS4837 CHINA UNICOM China169 Backbone 11.11ms from Beijing, CN
96.125.176.210 AS13767 DataBank Holdings, Ltd. 1.35ms from Dallas, US
146.90.32.34 AS6871 Plusnet 12.35ms from Erith, GB
83.251.6.2 AS1257 Tele2 Sverige AB 4.21ms from Goeteborg, SE
47.114.155.66 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 2.19ms from Hangzhou, CN
129.226.226.146 AS132203 Tencent Building, Kejizhongyi Avenue 0.41ms from Hong Kong, HK
193.140.87.2 AS207263 TUBITAK-BILGEM 9.18ms from Istanbul, TR
46.234.244.178 AS20811 Retelit Digital Services S.p.A. 4.58ms from Milan, IT
144.129.221.178 AS33363 Charter Communications, Inc 4.93ms from Orlando, US
189.125.250.178 AS3549 Level 3 Parent, LLC 0.50ms from Porto Alegre, BR
193.179.142.18 AS13036 T-Mobile Czech Republic a.s. 1.09ms from Prague, CZ
113.192.84.178 AS45361 Ulsan Jung-Ang Broadcasting Network 7.79ms from Seoul, KR
64.176.171.66 AS20473 The Constant Company, LLC 0.15ms from Tel Aviv, IL
175.35.247.210 AS4804 Microplex PTY LTD 2.93ms from Adelaide, AU
80.81.251.50 AS15657 Speedbone Internet & Connectivity GmbH 0.79ms from Berlin, DE
35.189.199.194 AS396982 Google LLC 0.13ms from Brussels, BE
171.94.22.50 AS4134 CHINANET-BACKBONE 7.05ms from Chengdu, CN
74.215.139.194 AS6181 Cincinnati Bell Telephone Company LLC 1.35ms from Cincinnati, US
217.110.254.146 AS8220 COLT Technology Services Group Limited 0.63ms from Frankfurt am Main, DE
85.228.95.114 AS8434 Telenor Sverige AB 0.89ms from Goeteborg, SE
31.145.14.2 AS15924 Vodafone Net Iletisim Hizmetler AS 1.57ms from Istanbul, TR
109.182.179.82 AS5603 Telekom Slovenije, d.d. 2.37ms from Ljubljana, SI
90.251.121.50 AS5378 Vodafone Limited 2.50ms from London, GB
121.221.169.146 AS1221 Telstra Limited 1.29ms from Melbourne, AU

Traceroute

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

$
traceroute -a -n -q1 -m6 128.4.108.143
traceroute to 128.4.108.143 (128.4.108.143): 6 hops max, 52 byte packets
1 [AS15169] 108.170.233.255 114.553 ms
2 *
3 [] 199.109.102.22 118.523 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Sao Paulo, BR
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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