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

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

IP Address ASN Details
165.124.172.2 AS103 Northwestern University 1.20ms from Chicago, US
129.105.9.3 AS103 Northwestern University 1.15ms from Chicago, US
165.124.19.35 AS103 Northwestern University 0.81ms from Chicago, US
129.105.143.227 AS103 Northwestern University 1.15ms from Chicago, US
165.124.131.65 AS103 Northwestern University 0.79ms from Chicago, US
199.249.165.2 AS103 Northwestern University 0.97ms from Chicago, US
165.124.91.61 AS103 Northwestern University 0.87ms from Chicago, US
199.249.168.35 AS103 Northwestern University 14.67ms from Ashburn, US
129.105.169.25 AS103 Northwestern University 1.13ms from Chicago, US
165.124.36.65 AS103 Northwestern University 0.82ms from Chicago, US
129.105.97.10 AS103 Northwestern University 1.13ms from Chicago, US
165.124.170.129 AS103 Northwestern University 1.18ms from Chicago, US
165.124.251.217 AS103 Northwestern University 0.82ms from Chicago, US
199.249.169.193 AS103 Northwestern University 14.28ms from Ashburn, US
165.124.52.131 AS103 Northwestern University 1.10ms from Chicago, US
129.105.230.99 AS103 Northwestern University 1.18ms from Chicago, US
165.124.24.73 AS103 Northwestern University 0.82ms from Chicago, US
165.124.185.174 AS103 Northwestern University 1.02ms from Chicago, US
165.124.244.179 AS103 Northwestern University 0.76ms from Chicago, US
165.124.179.18 AS103 Northwestern University 1.15ms from Chicago, US
165.124.31.35 AS103 Northwestern University 1.12ms from Chicago, US
129.105.173.102 AS103 Northwestern University 1.15ms from Chicago, US
129.105.64.1 AS103 Northwestern University 1.18ms from Chicago, US
129.105.31.20 AS103 Northwestern University 1.10ms from Chicago, US
165.124.206.21 AS103 Northwestern University 0.73ms 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
92.218.114.199 AS3209 Vodafone GmbH 4.52ms from Duesseldorf, DE
35.235.64.199 AS396982 Google LLC 0.10ms from Los Angeles, US
114.200.79.55 AS9318 SK Broadband Co Ltd 7.25ms from Seoul, KR
101.179.196.167 AS1221 Telstra Limited 1.43ms from Sydney, AU
195.82.191.135 AS35434 PirxNet Grzegorz Bialas 4.25ms from Wrocław, PL
73.163.42.215 AS7922 Comcast Cable Communications, LLC 8.76ms from Ashburn, US
216.162.135.55 AS23473 PAVLOV MEDIA INC 6.40ms from Atlanta, US
117.27.142.7 AS133774 Fuzhou 1.53ms from Fuzhou, CN
31.52.228.167 AS2856 British Telecommunications PLC 6.12ms from London, GB
117.223.44.39 AS9829 National Internet Backbone 13.51ms from Mumbai, IN
101.80.228.39 AS4812 China Telecom (Group) 3.54ms from Shanghai, CN
83.212.224.199 AS5408 National Infrastructures for Research and Technology S.A. 1.77ms from Athens, GR
73.7.174.39 AS7922 Comcast Cable Communications, LLC 4.94ms from Atlanta, US
101.30.98.119 AS4837 CHINA UNICOM China169 Backbone 4.29ms from Beijing, CN
67.197.179.215 AS14615 Comporium, Inc 6.41ms from Charlotte, US
98.158.32.55 AS17306 JAB Wireless, INC. 0.34ms from Dallas, US
5.51.45.167 AS5410 Bouygues Telecom SA 9.31ms from Paris, FR
176.178.174.135 AS5410 Bouygues Telecom SA 13.05ms from Paris, FR
69.235.239.55 AS7018 AT&T Enterprises, LLC 17.29ms from Redding, US
187.207.18.151 AS8151 UNINET 3.99ms from Santiago de Queretaro, MX
119.208.194.247 AS4766 Korea Telecom 1.61ms from Seoul, KR
112.186.86.199 AS4766 Korea Telecom 1.77ms from Seoul, KR
89.205.89.215 AS41557 Drustvo za telekomunikaciski uslugi TELEKABEL DOOEL Stip 2.83ms from Skopje, MK
220.148.208.7 AS10010 TOKAI Communications Corporation 3.07ms from Tokyo, JP
211.132.143.167 AS9595 NTT-ME Corporation 1.38ms from Tokyo, JP

Traceroute

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

$
traceroute -a -n -q1 -f2 -m6 199.249.169.50
traceroute to 199.249.169.50 (199.249.169.50): 6 hops max, 52 byte packets
2 [AS58061] 38.180.36.1 0.204 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Almaty, KZ
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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