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
165.124.41.131 AS103 Northwestern University 0.72ms from Chicago, US
129.105.82.218 AS103 Northwestern University 0.95ms from Chicago, US
165.124.184.160 AS103 Northwestern University 0.93ms from Chicago, US
192.5.143.31 AS103 Northwestern University 0.38ms from Chicago, US
129.105.106.30 AS103 Northwestern University 0.73ms from Chicago, US
165.124.33.151 AS103 Northwestern University 0.59ms from Chicago, US
165.124.82.177 AS103 Northwestern University 1.06ms from Chicago, US
165.124.147.67 AS103 Northwestern University 0.71ms from Chicago, US
165.124.178.132 AS103 Northwestern University 0.77ms from Chicago, US
165.124.1.47 AS103 Northwestern University 0.61ms from Chicago, US
129.105.100.102 AS103 Northwestern University 1.07ms from Chicago, US
165.124.0.193 AS103 Northwestern University 0.95ms from Chicago, US
129.105.140.2 AS103 Northwestern University 1.00ms from Chicago, US
2620:10d:2060:1146::1 AS103 Northwestern University 1.33ms from Chicago, US
165.124.51.137 AS103 Northwestern University 0.76ms from Chicago, US
165.124.111.111 AS103 Northwestern University 1.72ms from Chicago, US
2620:10d:2010:6011::100 AS103 Northwestern University 1.17ms from Chicago, US
129.105.31.20 AS103 Northwestern University 0.92ms from Chicago, US
165.124.49.132 AS103 Northwestern University 0.65ms from Chicago, US
165.124.110.21 AS103 Northwestern University 1.14ms from Chicago, US
192.26.87.246 AS103 Northwestern University 0.41ms from Chicago, US
129.105.13.13 AS103 Northwestern University 0.96ms from Chicago, US
165.124.130.99 AS103 Northwestern University 1.07ms from Chicago, US
129.105.239.226 AS103 Northwestern University 1.00ms from Chicago, US
165.124.24.73 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
141.237.2.103 AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA 1.65ms from Athens, GR
196.119.183.135 AS36925 MEDITELECOM 3.84ms from Casablanca, MA
156.56.17.39 AS87 Indiana University 5.11ms from Chicago, US
187.95.214.7 AS270626 DOMINION UAULL NET TEC DE CON INTELIGENTES LTDA 7.95ms from Curitiba, BR
160.8.122.23 AS14340 Salesforce.com, Inc. 0.41ms from Frankfurt am Main, DE
178.136.49.215 AS6703 PRIVATE JOINT-STOCK COMPANY "FARLEP-INVEST" 6.33ms from Kyiv, UA
199.47.210.167 AS53340 VegasNAP, LLC 0.26ms from Las Vegas, US
85.133.40.215 AS24867 Adapt Services Limited 3.01ms from London, GB
5.66.190.7 AS5607 Sky UK Limited 6.61ms from London, GB
82.60.24.87 AS3269 Telecom Italia S.p.A. 2.80ms from Milan, IT
74.90.108.231 AS6128 Cablevision Systems Corp. 7.21ms from New York City, US
80.131.146.231 AS3320 Deutsche Telekom AG 2.79ms from Nuernberg, DE
200.219.252.7 AS15830 Equinix (EMEA) Acquisition Enterprises B.V. 0.74ms from Osasco, BR
169.44.183.167 AS36351 IBM Cloud 0.65ms from San Jose, US
73.11.165.199 AS7922 Comcast Cable Communications, LLC 5.54ms from Seattle, US
211.43.76.23 AS4766 Korea Telecom 2.02ms from Seoul, KR
153.224.23.103 AS4713 NTT DOCOMO BUSINESS,Inc. 4.80ms from Tokyo, JP
105.111.70.7 AS36947 Telecom Algeria 14.41ms from Algiers, DZ
155.141.121.71 AS668 United States Department of Defense (DoD) 0.58ms from Atlanta, US
197.167.172.7 AS24863 Link Egypt (Link.NET) 8.55ms from Cairo, EG
102.42.240.119 AS8452 TE-AS 3.87ms from Cairo, EG
125.166.113.199 AS7713 PT Telekomunikasi Indonesia 2.82ms from Jakarta, ID
51.14.96.7 AS2856 British Telecommunications PLC 11.23ms from London, GB
87.222.169.55 AS12479 Orange Espagne SA 6.80ms from Madrid, ES
188.113.30.247 AS12389 PJSC Rostelecom 16.57ms from Moscow, RU

Traceroute

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

$
traceroute -a -n -q1 -m5 129.105.189.57
traceroute to 129.105.189.57 (129.105.189.57): 5 hops max, 52 byte packets
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Budapest, HU
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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