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 165
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 165 domain names hosted across 68 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
165.124.149.20 ██████████ 8
129.105.193.208 ██████████ 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
129.105.193.88 ██████████ 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

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

IP Address ASN Details
165.124.159.2 AS103 Northwestern University 0.75ms from Chicago, US
129.105.106.30 AS103 Northwestern University 0.80ms from Chicago, US
129.105.13.13 AS103 Northwestern University 0.94ms from Chicago, US
129.105.103.98 AS103 Northwestern University 1.01ms from Chicago, US
129.105.222.1 AS103 Northwestern University 1.11ms from Chicago, US
165.124.73.7 AS103 Northwestern University 1.12ms from Chicago, US
165.124.219.239 AS103 Northwestern University 0.74ms from Chicago, US
129.105.112.130 AS103 Northwestern University 1.00ms from Chicago, US
129.105.47.218 AS103 Northwestern University 1.01ms from Chicago, US
129.105.159.32 AS103 Northwestern University 1.00ms from Chicago, US
129.105.64.2 AS103 Northwestern University 1.00ms from Chicago, US
129.105.123.129 AS103 Northwestern University 1.02ms from Chicago, US
38.124.97.2 AS103 Northwestern University 0.72ms from Chicago, US
129.105.12.109 AS103 Northwestern University 1.03ms from Chicago, US
129.105.247.242 AS103 Northwestern University 0.60ms from Chicago, US
129.105.253.94 AS103 Northwestern University 0.70ms from Chicago, US
165.124.244.181 AS103 Northwestern University 0.60ms from Chicago, US
199.249.169.193 AS103 Northwestern University 14.33ms from Ashburn, US
129.105.25.2 AS103 Northwestern University 1.02ms from Chicago, US
2620:10d:2000:2024:: AS103 Northwestern University 0.91ms from Chicago, US
165.124.43.98 AS103 Northwestern University 0.69ms from Chicago, US
199.249.168.34 AS103 Northwestern University 14.71ms from Ashburn, US
165.124.155.3 AS103 Northwestern University 0.79ms from Chicago, US
165.124.10.17 AS103 Northwestern University 0.69ms from Chicago, US
165.124.246.27 AS103 Northwestern University 1.22ms 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
181.237.7.183 AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 3.60ms from Bogotá, CO
68.251.116.183 AS7018 AT&T Enterprises, LLC 4.36ms from Chicago, US
34.9.19.71 AS396982 Google LLC 0.12ms from Council Bluffs, US
187.95.214.7 AS270626 DOMINION UAULL NET TEC DE CON INTELIGENTES LTDA 7.80ms from Curitiba, BR
165.154.66.23 AS135377 UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED 0.83ms from Hong Kong, HK
76.142.60.215 AS7922 Comcast Cable Communications, LLC 8.10ms from Houston, US
86.145.221.231 AS2856 British Telecommunications PLC 1.79ms from London, GB
3.175.37.183 AS16509 Amazon.com, Inc. 0.07ms from Portland, US
108.158.180.7 AS16509 Amazon.com, Inc. 0.29ms from Rio de Janeiro, BR
220.148.208.7 AS10010 TOKAI Communications Corporation 3.03ms from Tokyo, JP
35.77.4.247 AS16509 Amazon.com, Inc. 1.01ms from Tokyo, JP
99.232.239.183 AS812 Rogers Communications Canada Inc. 4.37ms from Toronto, CA
79.184.200.215 AS5617 Orange Polska Spolka Akcyjna 2.30ms from Warsaw, PL
118.173.42.135 AS23969 TOT Public Company Limited 8.61ms from Bangkok, TH
52.27.138.71 AS16509 Amazon.com, Inc. 0.14ms from Boardman, US
20.47.178.23 AS8075 Microsoft Corporation 0.23ms from Boydton, US
72.106.248.247 AS6167 Verizon Business 12.71ms from Chicago, US
34.250.159.55 AS16509 Amazon.com, Inc. 0.16ms from Dublin, IE
68.183.220.7 AS14061 DigitalOcean, LLC 0.22ms from Frankfurt am Main, DE
82.5.237.39 AS5089 Virgin Media Limited 8.45ms from London, GB
168.238.0.247 AS26057 Mediaocean LLC 1.47ms from New York City, US
60.96.22.55 AS17676 SoftBank Corp. 3.90ms from Osaka, JP
187.126.51.119 AS7738 V tal 9.79ms from Rio de Janeiro, BR
38.7.27.231 AS263725 MULTICABLE DE HONDURAS 0.27ms from San Pedro Sula, HN
14.95.129.135 AS4766 Korea Telecom 2.26ms from Seoul, KR

Traceroute

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

$
traceroute -a -n -q1 165.124.178.132
traceroute to 165.124.178.132 (165.124.178.132): 64 hops max, 52 byte packets
1 [AS202422] 37.9.35.3 0.141 ms
3 *
4 [] 206.41.110.26 0.291 ms
5 [AS2381] 140.189.9.134 0.973 ms
6 [AS103] 192.5.143.38 0.537 ms
Measurement taken from IPinfo ProbeNet in Chicago, 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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