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 162
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
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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 162 domain names hosted across 66 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 ██████████ 8
165.124.149.20 ██████████ 8
165.124.147.150 ██████████ 8
165.124.83.50 ██████████ 6
129.105.44.20 ██████████ 6
129.105.229.66 ██████████ 5
165.124.149.110 ██████████ 4
129.105.36.18 ██████████ 3

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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
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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

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

IP Address ASN Details
165.124.6.116 AS103 Northwestern University 0.76ms from Chicago, US
8.30.249.1 AS103 Northwestern University 1.01ms from Chicago, US
165.124.10.35 AS103 Northwestern University 0.77ms from Chicago, US
165.124.41.131 AS103 Northwestern University 0.72ms from Chicago, US
129.105.243.1 AS103 Northwestern University 1.07ms from Chicago, US
129.105.173.102 AS103 Northwestern University 1.00ms from Chicago, US
129.105.161.33 AS103 Northwestern University 1.08ms from Chicago, US
165.124.25.23 AS103 Northwestern University 0.73ms from Chicago, US
129.105.140.2 AS103 Northwestern University 1.00ms from Chicago, US
165.124.185.163 AS103 Northwestern University 0.86ms from Chicago, US
165.124.170.131 AS103 Northwestern University 1.03ms from Chicago, US
129.105.47.9 AS103 Northwestern University 0.96ms from Chicago, US
129.105.61.29 AS103 Northwestern University 0.93ms from Chicago, US
129.105.100.102 AS103 Northwestern University 1.07ms from Chicago, US
165.124.155.1 AS103 Northwestern University 0.67ms from Chicago, US
165.124.3.98 AS103 Northwestern University 0.60ms from Chicago, US
129.105.159.32 AS103 Northwestern University 1.04ms from Chicago, US
165.124.138.21 AS103 Northwestern University 1.01ms from Chicago, US
165.124.227.3 AS103 Northwestern University 1.01ms from Chicago, US
165.124.172.3 AS103 Northwestern University 1.01ms from Chicago, US
165.124.13.196 AS103 Northwestern University 1.03ms from Chicago, US
129.105.44.178 AS103 Northwestern University 0.95ms from Chicago, US
165.124.18.35 AS103 Northwestern University 0.74ms from Chicago, US
129.105.48.176 AS103 Northwestern University 0.93ms from Chicago, US
129.105.112.223 AS103 Northwestern University 1.01ms 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
69.167.186.71 AS32244 Liquid Web, L.L.C 0.15ms from Lansing, US
82.60.24.87 AS3269 Telecom Italia S.p.A. 2.80ms from Milan, IT
172.93.16.7 AS1403 EBOX 0.57ms from Montreal, CA
34.93.234.7 AS396982 Google LLC 0.10ms from Mumbai, IN
89.162.121.71 AS29695 Lyse Tele AS 14.20ms from Oslo, NO
106.214.197.71 AS24560 Bharti Airtel Ltd., Telemedia Services 14.70ms from Saint Thomas Mount, IN
163.181.46.103 AS24429 Zhejiang Taobao Network Co.,Ltd 0.09ms from San Jose, US
191.9.46.247 AS26599 TELEFÔNICA BRASIL S.A 2.58ms from Sao Paulo, BR
118.36.153.151 AS4766 Korea Telecom 1.09ms from Seoul, KR
220.134.2.247 AS3462 Data Communication Business Group 1.08ms from Taipei, TW
27.22.91.183 AS4134 CHINANET-BACKBONE 8.78ms from Wuhan, CN
80.72.55.151 AS20634 Telecom Liechtenstein AG 2.31ms from Zuerich, CH
187.208.36.7 AS8151 UNINET 1.93ms from Mexico City, MX
151.41.91.215 AS1267 WIND TRE S.P.A. 8.51ms from Milan, IT
155.185.224.119 AS137 Consortium GARR 11.26ms from Milan, IT
70.109.162.87 AS13977 Fidium 7.26ms from Montreal, CA
5.175.98.135 AS12389 PJSC Rostelecom 17.53ms from Moscow, RU
177.175.94.7 AS26599 TELEFÔNICA BRASIL S.A 13.67ms from Porto Alegre, BR
98.87.5.23 AS14618 Amazon.com, Inc. 0.60ms from Reston, US
66.117.141.39 AS7235 LanMinds, Inc. 1.64ms from San Jose, US
76.135.16.231 AS7922 Comcast Cable Communications, LLC 7.12ms from Seattle, US
187.51.188.247 AS10429 TELEFÔNICA BRASIL S.A 1.18ms from São Paulo, BR
222.136.254.231 AS4837 CHINA UNICOM China169 Backbone 5.18ms from Zhengzhou, CN
173.79.212.119 AS701 Verizon Business 2.44ms from Ashburn, US
61.157.198.87 AS4134 CHINANET-BACKBONE 4.67ms 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 -f3 -m11 165.124.63.199
traceroute to 165.124.63.199 (165.124.63.199): 11 hops max, 52 byte packets
3 [AS3356] 4.69.203.230 26.413 ms
4 [AS3356] 4.53.96.26 25.204 ms
5 [AS103] 129.105.247.226 25.201 ms
7 [AS103] 129.105.247.59 25.471 ms
8 [AS103] 129.105.247.29 25.764 ms
9 *
10 *
11 *
Measurement taken from IPinfo ProbeNet in Charlotte, 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.

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