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

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Peers

There are 16 peers for this ASN.

Peers Name
AS136617 Fortune Telecom Company Limited
AS139928 Third Wave Technologies Ltd
AS203794 LLC Gals-Telecom
AS266625 WCA TELECOM
AS266674 Cooperativa Eléctrica de Las Perdices Ltda.
AS266893 MULTIMEDIA NETWORK, S.A. DE C.V.
AS271529 ONLINE TELECOM.IP LTDA ME
AS29091 ipNX Nigeria Limited
AS34 University of Delaware
AS37254 Green Flash Trading
AS37280 Broad Based Communications Limited
AS37613 DOLPHIN TELECOMMUNICATION LIMITED
AS37628 KAB Technologies
AS41837 "South telephone company" LLC
AS52752 Vegas Telecom Informática Ltda.
AS59362 KS Network Limited
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ASN API & Database

Upstreams

There are 7 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.
AS271529 ONLINE TELECOM.IP LTDA ME
AS34 University of Delaware
AS41837 "South telephone company" LLC
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ASN API & Database

Downstreams

There is 1 peer for this ASN.

Downstreams Name
AS37280 Broad Based Communications Limited
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ASN API & Database

Pingable IPs

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

IP Address ASN Details
91.143.148.102 AS2 University of Delaware 20.07ms from Moscow, RU
91.143.147.98 AS2 University of Delaware 22.43ms from Moscow, RU
91.143.152.1 AS2 University of Delaware 22.41ms from Moscow, RU
91.143.149.241 AS2 University of Delaware 22.51ms from Moscow, RU
128.4.41.4 AS2 University of Delaware 4.63ms from Reston, US
91.143.151.22 AS2 University of Delaware 21.92ms from Moscow, RU
91.143.155.1 AS2 University of Delaware 21.09ms from Moscow, RU
91.143.156.34 AS2 University of Delaware 23.73ms from Moscow, RU
91.143.146.153 AS2 University of Delaware 21.79ms from Moscow, RU
91.143.144.7 AS2 University of Delaware 20.28ms from Moscow, RU
91.143.158.1 AS2 University of Delaware 20.77ms from Moscow, RU
128.4.33.3 AS2 University of Delaware 4.48ms from Reston, US
91.143.159.9 AS2 University of Delaware 21.30ms from Moscow, RU
91.143.150.125 AS2 University of Delaware 24.52ms from Moscow, RU
91.143.157.137 AS2 University of Delaware 20.88ms 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
99.1.39.98 AS7018 AT&T Enterprises, LLC 19.74ms from Atlanta, US
41.45.254.2 AS8452 TE-AS 6.02ms from Cairo, EG
168.148.189.2 AS21569 Dallas Baptist University 4.29ms from Dallas, US
92.217.18.210 AS3209 Vodafone GmbH 9.24ms from Frankfurt am Main, DE
91.48.29.194 AS3320 Deutsche Telekom AG 11.91ms from Frankfurt am Main, DE
83.233.239.2 AS29518 Bredband2 AB 8.45ms from Hamburg, DE
156.250.79.82 AS142286 LUOGELANG (FRANCE) LIMITED 1.11ms from Hong Kong, HK
114.100.249.34 AS4134 CHINANET-BACKBONE 12.02ms from Huai'an, CN
192.238.222.130 AS138995 Antbox Networks Limited 1.00ms from Kuala Lumpur, MY
178.150.20.34 AS13188 CONTENT DELIVERY NETWORK LTD 0.62ms from Kyiv, UA
72.52.244.114 AS32244 Liquid Web, L.L.C 0.20ms from Lansing, US
189.196.82.130 AS13999 Mega Cable, S.A. de C.V. 15.02ms from Los Angeles, US
216.221.108.242 AS14543 SRT Communications, Inc. 16.66ms from Minneapolis, US
176.197.153.226 AS39927 E-Light-Telecom Ltd. 4.42ms from Novosibirsk, RU
38.254.233.2 AS54936 Wyyerd Group 2.92ms from Phoenix, US
78.84.125.130 AS12578 SIA Tet 1.36ms from Riga, LV
176.96.228.162 AS207952 Evro Telecom OOO 0.47ms from Saint Petersburg, RU
80.216.66.50 AS1257 Tele2 Sverige AB 4.47ms from Stockholm, SE
60.199.21.2 AS9924 Taiwan Fixed Network, Telco and Network Service Provider. 1.13ms from Taipei, TW
116.135.60.226 AS4837 CHINA UNICOM China169 Backbone 5.95ms from Taiyuan, CN
94.141.82.130 AS34718 "IST TELEKOM" JV LLC 0.59ms from Tashkent, UZ
13.115.37.82 AS16509 Amazon.com, Inc. 0.17ms from Tokyo, JP
120.74.251.162 AS2527 Sony Network Communications Inc. 6.35ms from Tokyo, JP
133.44.65.50 AS2907 Research Organization of Information and Systems, National Institute of Informatics 5.35ms from Tokyo, JP
131.96.208.2 AS10631 Georgia State University 0.23ms 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 -m4 128.4.16.170
traceroute to 128.4.16.170 (128.4.16.170): 4 hops max, 52 byte packets
1 [AS149573] 151.243.98.1 220.849 ms
2 *
3 *
4 *
Measurement taken from IPinfo ProbeNet in Hyderabad, IN
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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