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 70,400
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
45.228.74.0/24 Cooperativa Eléctrica de Las Perdices Ltda. 256
45.228.75.0/24 Cooperativa Eléctrica de Las Perdices Ltda. 256
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
91.143.148.250 █████████ 1
128.4.31.222 ████████ 1
128.4.20.226 ██████████ 1
128.4.31.86 ██████████ 1
91.143.148.26 ████████ 1
91.143.148.178 ██████████ 1
128.4.31.87 ██████████ 1
91.143.157.140 ████████ 1

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Peers

There are 24 peers for this ASN.

Peers Name
AS138283 SPEED AIRLIVE BROADBAND SERVICES PVT LTD
AS139648 PacketStream Korea
AS139928 Third Wave Technologies Ltd
AS151154 TELCOSPHERE SERVICES PVT LTD
AS203794 LLC Gals-Telecom
AS262579 GE Network Provedor de Internet LTDA
AS262706 Ultranet Telecomunicações 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
AS29091 ipNX Nigeria Limited
AS34 University of Delaware
AS37613 DOLPHIN TELECOMMUNICATION LIMITED
AS37628 KAB Technologies
AS41837 "South telephone company" LLC
AS46105 Alpaon America LLC
AS52640 USCM - COMUNICACAO MULTIMIDIA LTDA.
AS52752 Vegas Telecom Informática Ltda.
AS53142 Friburgo Online LTDA ME
AS59362 KS Network Limited
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ASN API & Database

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 5 downstreams for this ASN.

Downstreams Name
AS151154 TELCOSPHERE SERVICES PVT LTD
AS265304 Brdsoft Solucoes de T.i e Telecomunicacoes LTDA
AS265398 nobre telecom ltda
AS46105 Alpaon America LLC
AS52640 USCM - COMUNICACAO MULTIMIDIA LTDA.
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Pingable IPs

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

IP Address ASN Details
91.143.150.125 AS2 University of Delaware 24.74ms from Moscow, RU
91.143.144.7 AS2 University of Delaware 20.71ms from Moscow, RU
91.143.156.33 AS2 University of Delaware 22.76ms from Moscow, RU
91.143.158.1 AS2 University of Delaware 20.80ms from Moscow, RU
91.143.151.1 AS2 University of Delaware 20.43ms from Moscow, RU
91.143.155.1 AS2 University of Delaware 21.34ms from Moscow, RU
45.228.75.92 AS2 University of Delaware 4.29ms from Cordoba, AR
128.4.33.254 AS2 University of Delaware 4.48ms from Reston, US
177.84.48.188 AS2 University of Delaware 4.44ms from Joao Pessoa, BR
91.143.149.248 AS2 University of Delaware 21.89ms from Moscow, RU
91.143.148.177 AS2 University of Delaware 19.88ms from Moscow, RU
91.143.152.1 AS2 University of Delaware 23.29ms from Moscow, RU
91.143.147.10 AS2 University of Delaware 21.03ms from Moscow, RU
91.143.146.164 AS2 University of Delaware 21.68ms from Moscow, RU
91.143.159.1 AS2 University of Delaware 22.16ms from Moscow, RU
91.143.157.145 AS2 University of Delaware 20.46ms from Moscow, RU
128.4.41.4 AS2 University of Delaware 4.87ms from Ashburn, US
45.228.74.132 AS2 University of Delaware 4.00ms from Cordoba, AR

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
76.19.103.34 AS7922 Comcast Cable Communications, LLC 9.10ms from Boston, US
175.34.35.18 AS4804 Microplex PTY LTD 1.49ms from Brisbane, AU
175.17.168.82 AS4837 CHINA UNICOM China169 Backbone 3.17ms from Changchun, CN
98.32.217.130 AS7922 Comcast Cable Communications, LLC 6.29ms from Chicago, US
64.239.215.34 AS32592 Uniti Fiber Holdings Inc. 7.13ms from Dallas, US
4.249.166.178 AS8075 Microsoft Corporation 0.20ms from Des Moines, US
135.116.53.98 AS8075 Microsoft Corporation 0.20ms from Gaevle, SE
61.14.48.34 AS3300 British Telecommunications PLC 10.35ms from Johannesburg, ZA
5.187.112.18 AS21351 Canal + Telecom SAS 3.94ms from Le Lamentin, MQ
37.110.133.2 AS42610 PJSC Rostelecom 0.81ms from Moscow, RU
71.44.211.66 AS33363 Charter Communications, Inc 4.40ms from Orlando, US
27.201.243.226 AS4837 CHINA UNICOM China169 Backbone 5.81ms from Qingdao, CN
54.226.75.2 AS14618 Amazon.com, Inc. 0.23ms from Reston, US
131.120.79.162 AS668 United States Department of Defense (DoD) 3.78ms from San Jose, US
199.188.208.2 AS17378 TierPoint, LLC 0.88ms from St. Louis, US
220.135.59.18 AS3462 Data Communication Business Group 1.38ms from Taipei, TW
153.180.37.2 AS4713 NTT DOCOMO BUSINESS,Inc. 2.48ms from Tokyo, JP
212.88.168.34 AS8447 A1 Telekom Austria AG 0.22ms from Vienna, AT
24.216.4.18 AS20115 Charter Communications LLC 4.85ms from Atlanta, US
197.166.115.34 AS24863 Link Egypt (Link.NET) 15.98ms from Cairo, EG
102.33.5.2 AS327782 Metrofibre Networx 2.49ms from Cape Town, ZA
108.217.36.146 AS7018 AT&T Enterprises, LLC 4.86ms from Chicago, US
139.144.38.66 AS63949 Akamai Connected Cloud 0.81ms from Dallas, US
86.184.159.98 AS2856 British Telecommunications PLC 5.85ms from Erith, GB
118.140.13.146 AS9304 HGC Global Communications Limited 1.13ms from Hong Kong, HK

Traceroute

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

$
traceroute -a -n -q1 -m5 128.4.48.62
traceroute to 128.4.48.62 (128.4.48.62): 5 hops max, 52 byte packets
2 [] 199.109.102.9 9.213 ms
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Columbus, 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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