Autonomous System details

AS103

Northwestern University  ·  northwestern.edu

United States

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

Sign up for free ›

AS103 – Northwestern University

Field Value
Country United States
Website northwestern.edu
Hosted domains 160
IPv4 addresses 149,504
IPv6 addresses 154,742,504,910,672,534,362,390,528
ASN type Education
Registry arin
Allocated 39 years ago on Apr 09, 1987
Updated 14 years ago on Apr 02, 2012

IP Ranges

Netblock Company Num of IPs
129.105.0.0/16 Northwestern University 65,536
165.124.0.0/17 Northwestern University 32,768
199.74.64.0/18 Northwestern University 16,384
165.124.128.0/19 Northwestern University 8,192
165.124.192.0/19 Northwestern University 8,192
165.124.160.0/20 Northwestern University 4,096
165.124.240.0/20 Northwestern University 4,096
165.124.176.0/21 Northwestern University 2,048
165.124.224.0/21 Northwestern University 2,048
8.30.248.0/22 Level 3 Parent, LLC 1,024
165.124.232.0/22 Northwestern University 1,024
8.28.178.0/23 Northwestern University 512
165.124.184.0/23 Northwestern University 512
192.26.86.0/23 Northwestern University 512
199.249.166.0/23 Northwestern University 512
199.249.168.0/23 Northwestern University 512
38.124.97.0/24 Northwestern University 256
165.124.17.0/24 Northwestern University 256
165.124.149.0/24 Northwestern University 256
165.124.186.0/24 Northwestern University 256
192.5.143.0/24 Northwestern University 256
192.26.85.0/24 Northwestern University 256
192.31.253.0/24 Northwestern University 256
199.249.165.0/24 Northwestern University 256
199.249.166.0/24 Northwestern University 256
199.249.167.0/24 Northwestern University 256
199.249.168.0/24 Northwestern University 256
199.249.169.0/24 Northwestern University 256

Netblock Company
2620:10d:2000::/41 Northwestern University
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

Join for free to view WHOIS details › 

                                                ASHandle:       AS103
                                                OrgID:          AS103
                                                ASName:         AS103
                                                ASNumber:       AS103
                                                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.
IP WHOIS API & Database

Hosted Domains

There are 160 domain names hosted across 65 IP addresses on this ASN.

Join for free to explore hosted domains ›
IP Address Domain Domains on this IP
129.105.136.48 ██████████ 30
165.124.248.37 ██████████ 17
129.105.193.208 ██████████ 8
165.124.149.20 ██████████ 8
165.124.147.150 ██████████ 7
129.105.44.20 ██████████ 6
165.124.83.50 ██████████ 6
129.105.229.66 ██████████ 5
165.124.149.110 ██████████ 4
129.105.193.88 ██████████ 3

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

Peers

There are 10 peers for this ASN.

Peers Name
AS11164 Internet2
AS174 Cogent Communications, LLC
AS19782 Indiana University
AS22335 Metropolitan Research and Education Network
AS2381 WiscNet
AS293 ESnet
AS33491 Comcast Cable Communications, LLC
AS3356 Level 3 Parent, LLC
AS396450 Internet2
AS40387 University of Illinois
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Upstreams

There are 5 upstreams for this ASN.

upstreams Name
AS174 Cogent Communications, LLC
AS2381 WiscNet
AS33491 Comcast Cable Communications, LLC
AS3356 Level 3 Parent, LLC
AS396450 Internet2
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Downstreams

There are no downstreams for this ASN.

Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Pingable IPs

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

IP Address ASN Details
129.105.179.54 AS103 Northwestern University 1.19ms from Chicago, US
129.105.36.159 AS103 Northwestern University 1.07ms from Chicago, US
129.105.106.30 AS103 Northwestern University 0.94ms from Chicago, US
165.124.131.65 AS103 Northwestern University 0.74ms from Chicago, US
165.124.250.78 AS103 Northwestern University 1.30ms from Chicago, US
129.105.221.38 AS103 Northwestern University 1.33ms from Chicago, US
129.105.99.71 AS103 Northwestern University 1.08ms from Chicago, US
165.124.249.37 AS103 Northwestern University 1.13ms from Chicago, US
129.105.100.102 AS103 Northwestern University 1.19ms from Chicago, US
129.105.128.160 AS103 Northwestern University 1.52ms from Chicago, US
129.105.27.237 AS103 Northwestern University 1.07ms from Chicago, US
165.124.179.33 AS103 Northwestern University 1.17ms from Chicago, US
129.105.237.87 AS103 Northwestern University 1.58ms from Chicago, US
165.124.29.217 AS103 Northwestern University 1.13ms from Chicago, US
165.124.159.2 AS103 Northwestern University 0.85ms from Chicago, US
129.105.217.70 AS103 Northwestern University 1.38ms from Chicago, US
129.105.243.3 AS103 Northwestern University 1.11ms from Chicago, US
129.105.231.2 AS103 Northwestern University 1.39ms from Chicago, US
165.124.10.35 AS103 Northwestern University 0.85ms from Chicago, US
129.105.46.218 AS103 Northwestern University 0.80ms from Chicago, US
129.105.109.227 AS103 Northwestern University 1.32ms from Chicago, US
129.105.31.20 AS103 Northwestern University 0.99ms from Chicago, US
129.105.71.100 AS103 Northwestern University 1.12ms from Chicago, US
165.124.158.198 AS103 Northwestern University 1.14ms from Chicago, US
129.105.67.38 AS103 Northwestern University 1.32ms from Chicago, 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
45.26.122.215 AS7018 AT&T Enterprises, LLC 4.21ms from Atlanta, US
181.52.102.23 AS10620 Telmex Colombia S.A. 19.66ms from Bogota, CO
187.95.214.7 AS270626 DOMINION UAULL NET TEC DE CON INTELIGENTES LTDA 7.76ms from Curitiba, BR
89.166.112.231 AS16086 DNA Oyj 2.15ms from Helsinki, FI
122.41.128.7 AS17858 LG POWERCOMM 1.73ms from Incheon, KR
119.162.135.7 AS4837 CHINA UNICOM China169 Backbone 3.08ms from Jinan, CN
37.76.165.135 AS12389 PJSC Rostelecom 10.54ms from Moscow, RU
61.224.116.167 AS3462 Data Communication Business Group 1.69ms from Taichung, TW
94.31.196.7 AS12668 LLC KomTehCentr 0.83ms from Yekaterinburg, RU
34.239.45.135 AS14618 Amazon.com, Inc. 0.93ms from Ashburn, US
183.175.42.23 AS4538 China Education and Research Network Center 12.16ms from Beijing, CN
49.191.35.183 AS4804 Microplex PTY LTD 3.81ms from Brisbane, AU
98.158.32.55 AS17306 JAB Wireless, INC. 0.50ms from Dallas, US
5.157.214.87 AS9009 M247 Europe SRL 0.25ms from Frankfurt am Main, DE
69.167.186.71 AS32244 Liquid Web, L.L.C 0.15ms from Lansing, US
87.8.226.167 AS3269 Telecom Italia S.p.A. 4.02ms from Milan, IT
186.50.199.183 AS6057 Administracion Nacional de Telecomunicaciones 3.60ms from Montevideo, UY
71.59.199.199 AS7922 Comcast Cable Communications, LLC 4.63ms from Portland, US
187.23.91.87 AS28573 Claro NXT Telecomunicacoes Ltda 7.10ms from Sao Jose do Rio Preto, BR
89.20.67.7 AS41480 Systemec BV 3.53ms from Amsterdam, NL
73.80.1.199 AS7922 Comcast Cable Communications, LLC 7.47ms from Ashburn, US
50.66.171.151 AS6327 Shaw Communications 4.66ms from Calgary, CA
83.192.32.71 AS3215 Orange S.A. 3.85ms from Frankfurt am Main, DE
84.154.239.231 AS3320 Deutsche Telekom AG 3.13ms from Hamburg, DE
112.155.171.55 AS17858 LG POWERCOMM 5.27ms from Incheon, KR

Traceroute

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

$
traceroute -a -n -q1 -m5 129.105.60.84
traceroute to 129.105.60.84 (129.105.60.84): 5 hops max, 52 byte packets
1 [AS31898] 140.91.242.2 0.063 ms
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Abu Dhabi, AE
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 AS103 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.

Get Started for Free Contact Sales
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