Autonomous System details

AS103

Northwestern University  ·  northwestern.edu

United States

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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
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WHOIS Details

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                                                ASHandle:       AS103
                                                OrgID:          AS103
                                                ASName:         AS103
                                                ASNumber:       AS103
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

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

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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

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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
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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
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ASN API & Database

Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

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

IP Address ASN Details
199.249.167.1 AS103 Northwestern University 14.87ms from Ashburn, US
165.124.175.204 AS103 Northwestern University 0.77ms from Chicago, US
129.105.186.3 AS103 Northwestern University 1.23ms from Chicago, US
129.105.243.2 AS103 Northwestern University 1.26ms from Chicago, US
129.105.223.1 AS103 Northwestern University 1.23ms from Chicago, US
129.105.1.9 AS103 Northwestern University 1.16ms from Chicago, US
129.105.210.2 AS103 Northwestern University 1.33ms from Chicago, US
129.105.100.102 AS103 Northwestern University 1.27ms from Chicago, US
165.124.185.150 AS103 Northwestern University 1.18ms from Chicago, US
129.105.251.234 AS103 Northwestern University 1.28ms from Chicago, US
165.124.246.27 AS103 Northwestern University 1.33ms from Chicago, US
165.124.155.1 AS103 Northwestern University 0.83ms from Chicago, US
165.124.216.145 AS103 Northwestern University 0.95ms from Chicago, US
129.105.2.143 AS103 Northwestern University 1.16ms from Chicago, US
129.105.99.87 AS103 Northwestern University 1.11ms from Chicago, US
165.124.120.1 AS103 Northwestern University 0.84ms from Chicago, US
38.124.97.1 AS103 Northwestern University 0.80ms from Chicago, US
129.105.0.2 AS103 Northwestern University 0.78ms from Chicago, US
165.124.49.129 AS103 Northwestern University 0.76ms from Chicago, US
129.105.36.180 AS103 Northwestern University 1.17ms from Chicago, US
199.249.169.5 AS103 Northwestern University 14.22ms from Ashburn, US
129.105.173.2 AS103 Northwestern University 1.28ms from Chicago, US
165.124.159.2 AS103 Northwestern University 0.87ms from Chicago, US
129.105.143.227 AS103 Northwestern University 1.30ms from Chicago, US
8.30.249.3 AS103 Northwestern University 1.30ms 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
92.117.72.87 AS8881 1&1 Versatel GmbH 2.07ms from Duesseldorf, DE
217.239.4.103 AS3320 Deutsche Telekom AG 5.40ms from Frankfurt am Main, DE
38.85.138.7 AS400427 IQ Fiber 1.03ms from Jacksonville, US
176.120.61.151 AS58309 Langate Ltd 7.60ms from Khmelnytskyi, UA
31.127.208.87 AS2856 British Telecommunications PLC 1.50ms from London, GB
96.234.163.215 AS701 Verizon Business 3.47ms from Philadelphia, US
112.226.198.87 AS4837 CHINA UNICOM China169 Backbone 1.18ms from Qingdao, CN
212.171.14.71 AS3269 Telecom Italia S.p.A. 4.99ms from Rome, IT
49.25.109.215 AS4766 Korea Telecom 6.50ms from Seoul, KR
89.205.89.215 AS41557 Drustvo za telekomunikaciski uslugi TELEKABEL DOOEL Stip 3.21ms from Skopje, MK
122.220.7.39 AS17506 ARTERIA Networks Corporation 1.01ms from Tokyo, JP
94.143.195.231 AS8449 ElCat Ltd. 0.34ms from Bishkek, KG
132.232.247.7 AS45090 Shenzhen Tencent Computer Systems Company Limited 0.99ms from Chengdu, CN
117.251.24.151 AS9829 National Internet Backbone 8.48ms from Chennai, IN
104.166.197.231 AS30036 Mediacom Communications Corp 15.98ms from Chicago, US
98.46.227.167 AS7922 Comcast Cable Communications, LLC 6.66ms from Chicago, US
93.225.169.151 AS3320 Deutsche Telekom AG 10.37ms from Frankfurt am Main, DE
116.106.180.151 AS24086 Viettel Corporation 3.31ms from Ho Chi Minh City, VN
36.6.27.199 AS4134 CHINANET BACKBONE 7.45ms from Huainan, CN
24.71.54.39 AS6327 Shaw Communications 5.69ms from Kelowna, CA
91.223.152.7 AS56439 Protection and Security Plus LTD 8.12ms from Kyiv, UA
144.34.245.55 AS25820 IT7 Networks Inc 0.26ms from Los Angeles, US
37.11.243.7 AS12479 Orange Espagne SA 11.01ms from Madrid, ES
66.41.65.231 AS7922 Comcast Cable Communications, LLC 6.22ms from Minneapolis, US
189.157.223.39 AS8151 UNINET 8.44ms from Monterrey, MX

Traceroute

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

$
traceroute -a -n -q1 -m5 165.124.118.245
traceroute to 165.124.118.245 (165.124.118.245): 5 hops max, 52 byte packets
2 [] 194.30.187.201 1.072 ms
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Bratislava, SK
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.

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