AS number details

AS2

University of Delaware  ·  udel.edu

Need more data or want to access it via API or data downloads? Sign up to get free access

Sign up for free ›

AS2 – University of Delaware

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

Get this data and more with IPinfo's powerful IP Ranges API - quickly and easily identify company-owned IP ranges.
IP Ranges API

WHOIS Details


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

                                            
Get this data and more with IPinfo's Whois product - effortless access to POCs, ORGs, and Networks, for actionable intelligence.

Hosted Domains

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

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

Discover all domains hosted on a single IP address with IPinfo's powerful Hosted Domains (Reverse IP) solution.
Useful for Cybersecurity

Peers

There are 20 peers for this ASN.

Peers Name
AS139928 Third Wave Technologies Ltd
AS262569 AS-ARCANJO
AS262706 Ultranet Telecomunicações Ltda
AS262773 PROXXIMA TELECOMUNICACOES SA
AS265304 Brdsoft Solucoes de T.i e Telecomunicacoes LTDA
AS265398 nobre telecom ltda
AS266625 WCA TELECOM
AS266893 MULTIMEDIA NETWORK, S.A. DE C.V.
AS268423 susana g de souza me
AS270757 VIP NET PROVEDOR DE SERVICOS DE INTERNET LTDA
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
AS52640 USCM - COMUNICACAO MULTIMIDIA LTDA.
AS53142 Friburgo Online LTDA ME
AS59362 KS Network Limited
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Upstreams

There are 8 upstreams for this ASN.

upstreams Name
AS266625 WCA TELECOM
AS266893 MULTIMEDIA NETWORK, S.A. DE C.V.
AS268423 susana g de souza me
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
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Downstreams

There are 2 downstreams for this ASN.

Downstreams Name
AS265398 nobre telecom ltda
AS52640 USCM - COMUNICACAO MULTIMIDIA LTDA.
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Pingable IPs

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

IP Address ASN Details
91.143.158.50 AS2 University of Delaware 8.42ms from Krasnodar, RU
91.143.148.218 AS2 University of Delaware 8.50ms from Krasnodar, RU
91.143.159.253 AS2 University of Delaware 9.25ms from Krasnodar, RU
91.143.147.10 AS2 University of Delaware 10.43ms from Krasnodar, RU
91.143.156.34 AS2 University of Delaware 17.79ms from Krasnodar, RU
91.143.157.93 AS2 University of Delaware 8.78ms from Krasnodar, RU
91.143.149.238 AS2 University of Delaware 12.34ms from Krasnodar, RU
91.143.152.1 AS2 University of Delaware 16.48ms from Krasnodar, RU
91.143.146.204 AS2 University of Delaware 8.19ms from Krasnodar, RU
91.143.151.1 AS2 University of Delaware 9.42ms from Krasnodar, RU
91.143.144.16 AS2 University of Delaware 8.28ms from Krasnodar, RU
91.143.155.1 AS2 University of Delaware 15.35ms from Krasnodar, RU
128.4.33.254 AS2 University of Delaware 4.45ms from Reston, US
91.143.150.28 AS2 University of Delaware 8.73ms from Krasnodar, RU
128.4.41.254 AS2 University of Delaware 4.72ms 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
37.153.218.194 AS28685 Routit BV 2.24ms from Amsterdam, NL
74.235.176.2 AS8075 Microsoft Corporation 0.39ms from Ashburn, US
105.157.12.98 AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM 5.63ms from Casablanca, MA
24.245.158.50 AS11492 CABLE ONE, INC. 4.41ms from Dallas, US
209.114.42.2 AS33070 Rackspace Hosting 1.13ms from Dallas, US
208.72.158.34 AS14497 Bit Refinery, LLC 0.65ms from Denver, US
23.191.104.34 AS401357 Solid Rock Network LLC 0.17ms from Draper, US
219.131.173.194 AS4134 CHINANET-BACKBONE 5.37ms from Guangzhou, CN
42.178.84.18 AS4837 CHINA UNICOM China169 Backbone 4.87ms from Liaoyang, CN
88.150.213.66 AS20860 IOMART CLOUD SERVICES LIMITED 2.89ms from London, GB
151.228.71.2 AS5607 Sky UK Limited 4.30ms from London, GB
189.251.25.242 AS8151 UNINET 2.46ms from Mexico City, MX
202.144.20.66 AS9583 Sify Limited 1.89ms from Mumbai, IN
223.82.144.18 AS9808 China Mobile Communications Group Co., Ltd. 3.98ms from Nanchang, CN
217.237.86.82 AS3320 Deutsche Telekom AG 3.45ms from Nuernberg, DE
199.21.30.82 AS10962 Cerner Corporation 1.15ms from Philadelphia, US
23.195.173.226 AS16625 Akamai Technologies, Inc. 0.69ms from Rio de Janeiro, BR
106.244.134.18 AS3786 LG DACOM Corporation 1.99ms from Seoul, KR
180.70.209.98 AS9318 SK Broadband Co Ltd 6.42ms from Seoul, KR
13.76.216.162 AS8075 Microsoft Corporation 0.49ms from Singapore, SG
58.51.191.242 AS4134 CHINANET-BACKBONE 1.96ms from Wuhan, CN
52.226.131.98 AS8075 Microsoft Corporation 0.36ms from Ashburn, US
66.19.111.146 AS7029 Windstream Communications LLC 0.45ms from Atlanta, US
73.119.17.98 AS7922 Comcast Cable Communications, LLC 9.18ms from Boston, US
183.223.136.130 AS9808 China Mobile Communications Group Co., Ltd. 12.69ms from Chengdu, CN

Traceroute

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

$
traceroute -a -n -q1 -m6 128.4.151.64
traceroute to 128.4.151.64 (128.4.151.64): 6 hops max, 52 byte packets
2 [] 199.109.102.9 246.993 ms
3 [] 199.109.102.22 253.85 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Delhi, 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.

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

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

IPinfo for all your IP geolocation needs

Our IP tools

Explore all tools
What is my IP

What is my IP

Test our data accuracy by viewing insights from your IP address.

See your IP address
Map IPs

Map IPs

Paste up to 500,000 IPs to see where they're located on a map.

Try Map IPs
Summarize IPs

Summarize IPs

Use our data visualization tool to create a visual overview of multiple IPs.

Try Summarize IPs