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 154,742,504,910,672,534,362,390,528
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 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 ██████████ 8
165.124.149.20 ██████████ 8
165.124.147.150 ██████████ 7
129.105.44.20 ██████████ 6
165.124.83.50 ██████████ 6
129.105.229.66 ██████████ 5
165.124.149.110 ██████████ 4
129.105.193.88 ██████████ 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

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

IP Address ASN Details
199.249.167.2 AS103 Northwestern University 14.71ms from Ashburn, US
165.124.146.41 AS103 Northwestern University 1.44ms from Chicago, US
129.105.152.155 AS103 Northwestern University 1.25ms from Chicago, US
129.105.49.22 AS103 Northwestern University 1.09ms from Chicago, US
165.124.8.61 AS103 Northwestern University 0.80ms from Chicago, US
165.124.83.31 AS103 Northwestern University 1.11ms from Chicago, US
192.5.143.33 AS103 Northwestern University 0.50ms from Chicago, US
2620:10d:2050:a0fe::2 AS103 Northwestern University 1.15ms from Chicago, US
165.124.0.193 AS103 Northwestern University 1.25ms from Chicago, US
165.124.29.217 AS103 Northwestern University 1.15ms from Chicago, US
129.105.148.2 AS103 Northwestern University 1.28ms from Chicago, US
165.124.49.254 AS103 Northwestern University 0.77ms from Chicago, US
165.124.129.14 AS103 Northwestern University 0.82ms from Chicago, US
165.124.131.66 AS103 Northwestern University 0.74ms from Chicago, US
129.105.9.1 AS103 Northwestern University 1.30ms from Chicago, US
129.105.217.53 AS103 Northwestern University 1.34ms from Chicago, US
129.105.254.130 AS103 Northwestern University 1.23ms from Chicago, US
129.105.97.10 AS103 Northwestern University 1.26ms from Chicago, US
129.105.158.42 AS103 Northwestern University 1.16ms from Chicago, US
129.105.22.65 AS103 Northwestern University 1.27ms from Chicago, US
165.124.52.131 AS103 Northwestern University 1.09ms from Chicago, US
165.124.123.135 AS103 Northwestern University 1.10ms from Chicago, US
129.105.237.87 AS103 Northwestern University 1.92ms from Chicago, US
165.124.3.98 AS103 Northwestern University 0.87ms from Chicago, US
129.105.179.41 AS103 Northwestern University 1.10ms 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
132.220.233.23 AS8075 Microsoft Corporation 0.28ms from Amsterdam, NL
178.223.43.119 AS8400 TELEKOM SRBIJA a.d. 1.13ms from Belgrade, RS
50.31.30.7 AS394303 BigScoots 0.70ms from Chicago, US
168.129.209.167 AS31898 Oracle Corporation 0.29ms from Dallas, US
73.70.61.199 AS7922 Comcast Cable Communications, LLC 7.75ms from Fremont, US
212.174.105.167 AS9121 Turk Telekomunikasyon Anonim Sirketi 0.44ms from Istanbul, TR
178.210.129.71 AS49984 Telecomunikatsiina Companiya Ltd 1.96ms from Lviv, UA
83.45.8.7 AS3352 TELEFONICA DE ESPANA S.A.U. 8.89ms from Madrid, ES
99.84.198.7 AS16509 Amazon.com, Inc. 0.13ms from Minneapolis, US
23.63.216.71 AS55836 Reliance Jio Infocomm Limited 0.54ms from Mumbai, IN
121.128.71.183 AS4766 Korea Telecom 1.18ms from Seoul, KR
54.169.214.71 AS16509 Amazon.com, Inc. 0.13ms from Singapore, SG
82.26.173.167 AS209854 Cyberzone S.A. 0.29ms from Singapore, SG
20.212.203.183 AS8075 Microsoft Corporation 0.48ms from Singapore, SG
95.43.64.151 AS8866 Vivacom Bulgaria EAD 15.12ms from Sofia, BG
194.18.158.103 AS3301 Telia Company AB 1.55ms from Stockholm, SE
36.236.132.39 AS3462 Data Communication Business Group 4.33ms from Taichung, TW
165.231.158.199 AS58065 Orion Network Limited 0.12ms from Tallinn, EE
218.41.234.135 AS2527 Sony Network Communications Inc. 2.06ms from Tokyo, JP
42.234.201.151 AS4837 CHINA UNICOM China169 Backbone 5.11ms from Zhengzhou, CN
70.160.114.39 AS22773 Cox Communications Inc. 9.21ms from Ashburn, US
49.229.34.71 AS45458 SBN-ISP/AWN-ISP and SBN-NIX/AWN-NIX 1.48ms from Bangkok, TH
68.251.116.183 AS7018 AT&T Enterprises, LLC 5.27ms from Chicago, US
171.233.180.199 AS7552 Viettel Group 2.15ms from Ho Chi Minh City, VN
8.223.69.183 AS45102 Alibaba (US) Technology Co., Ltd. 1.07ms from Hong Kong, HK

Traceroute

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

$
traceroute -a -n -q1 -m4 165.124.134.104
traceroute to 165.124.134.104 (165.124.134.104): 4 hops max, 52 byte packets
2 *
3 *
4 *
Measurement taken from IPinfo ProbeNet in Amsterdam, NL
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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