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 154,742,504,910,672,530,000,000,000
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 ██████████ 6
165.124.83.50 ██████████ 6
129.105.44.20 ██████████ 6
165.124.149.20 ██████████ 6
129.105.229.66 ██████████ 5
165.124.147.150 ██████████ 5
165.124.149.110 ██████████ 4
129.105.5.141 ██████████ 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 11 peers for this ASN.

Peers Name
AS11164 Internet2
AS11537 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

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

IP Address ASN Details
165.124.251.217 AS103 Northwestern University 0.82ms from Chicago, US
129.105.231.2 AS103 Northwestern University 1.13ms from Chicago, US
129.105.247.243 AS103 Northwestern University 0.68ms from Chicago, US
129.105.253.94 AS103 Northwestern University 0.83ms from Chicago, US
165.124.91.61 AS103 Northwestern University 0.87ms from Chicago, US
129.105.71.33 AS103 Northwestern University 1.14ms from Chicago, US
165.124.230.2 AS103 Northwestern University 0.86ms from Chicago, US
129.105.112.2 AS103 Northwestern University 1.07ms from Chicago, US
129.105.185.35 AS103 Northwestern University 1.10ms from Chicago, US
165.124.19.35 AS103 Northwestern University 0.81ms from Chicago, US
165.124.244.179 AS103 Northwestern University 0.76ms from Chicago, US
165.124.231.174 AS103 Northwestern University 1.90ms from Chicago, US
129.105.223.57 AS103 Northwestern University 1.04ms from Chicago, US
129.105.230.99 AS103 Northwestern University 1.18ms from Chicago, US
129.105.9.3 AS103 Northwestern University 1.15ms from Chicago, US
129.105.156.53 AS103 Northwestern University 1.10ms from Chicago, US
129.105.22.125 AS103 Northwestern University 1.15ms from Chicago, US
165.124.82.161 AS103 Northwestern University 1.11ms from Chicago, US
129.105.179.43 AS103 Northwestern University 1.14ms from Chicago, US
165.124.198.166 AS103 Northwestern University 1.09ms from Chicago, US
8.30.249.3 AS103 Northwestern University 1.16ms from Chicago, US
165.124.3.3 AS103 Northwestern University 0.85ms from Chicago, US
199.249.169.193 AS103 Northwestern University 14.28ms from Ashburn, US
165.124.24.73 AS103 Northwestern University 0.82ms from Chicago, US
165.124.179.18 AS103 Northwestern University 1.15ms 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
188.202.59.119 AS1136 KPN B.V. 17.66ms from Amsterdam, NL
37.151.28.7 AS9198 JSC Kazakhtelecom 6.16ms from Astana, KZ
98.192.78.55 AS7922 Comcast Cable Communications, LLC 4.03ms from Atlanta, US
41.238.143.71 AS8452 TE-AS 8.24ms from Cairo, EG
45.222.24.247 AS327849 DIRECTEL COMMUNICATIONS (PTY) LTD 1.23ms from Cape Town, ZA
169.60.32.247 AS36351 IBM Cloud 0.79ms from Dallas, US
23.115.107.103 AS7018 AT&T Enterprises, LLC 2.37ms from Dallas, US
112.111.28.247 AS4837 CHINA UNICOM China169 Backbone 2.80ms from Fuzhou, CN
187.205.179.7 AS8151 UNINET 7.33ms from Guadalajara, MX
107.149.168.119 AS9304 HGC Global Communications Limited 3.30ms from Hong Kong, HK
119.66.218.215 AS17858 LG POWERCOMM 2.94ms from Incheon, KR
5.254.30.199 AS3223 Voxility LLP 0.14ms from Madrid, ES
174.56.134.199 AS7922 Comcast Cable Communications, LLC 14.59ms from Orlando, US
86.238.46.183 AS3215 Orange S.A. 13.55ms from Paris, FR
74.224.101.199 AS8075 Microsoft Corporation 0.32ms from Saint Thomas Mount, IN
43.234.17.39 AS17506 ARTERIA Networks Corporation 1.62ms from Tokyo, JP
89.231.191.167 AS21021 Multimedia Polska Sp. z o.o. 8.60ms from Warsaw, PL
52.35.199.167 AS16509 Amazon.com, Inc. 0.18ms from Boardman, US
124.230.7.247 AS4134 CHINANET BACKBONE 6.85ms from Chenzhou, CN
68.44.218.23 AS7922 Comcast Cable Communications, LLC 11.69ms from Chicago, US
167.82.82.87 AS54113 Fastly, Inc. 0.06ms from Lisbon, PT
58.211.130.199 AS4134 CHINANET BACKBONE 4.67ms from Nanjing, CN
179.251.34.199 AS26615 TIM S/A 1.81ms from Osasco, BR
161.153.122.87 AS31898 Oracle Corporation 1.04ms from Phoenix, US
176.231.44.7 AS12400 Partner Communications Ltd. 1.57ms from Rosh Ha‘Ayin, IL

Traceroute

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

$
traceroute -a -n -q1 -f4 -m12 165.124.193.160
traceroute to 165.124.193.160 (165.124.193.160): 12 hops max, 52 byte packets
5 *
6 [AS6939] 184.105.222.71 19.365 ms
7 *
8 *
9 [AS103] 192.5.143.38 19.316 ms
10 *
11 *
12 *
Measurement taken from IPinfo ProbeNet in Ashburn, 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 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