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 163
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 163 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 ██████████ 29
165.124.248.37 ██████████ 17
165.124.149.20 ██████████ 8
165.124.147.150 ██████████ 8
129.105.193.208 ██████████ 8
129.105.44.20 ██████████ 6
165.124.83.50 ██████████ 6
129.105.229.66 ██████████ 5
165.124.149.110 ██████████ 4
165.124.248.26 ██████████ 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
165.124.24.75 AS103 Northwestern University 0.74ms from Chicago, US
129.105.48.155 AS103 Northwestern University 1.02ms from Chicago, US
165.124.245.159 AS103 Northwestern University 1.00ms from Chicago, US
129.105.210.1 AS103 Northwestern University 1.05ms from Chicago, US
129.105.74.161 AS103 Northwestern University 0.99ms from Chicago, US
129.105.13.3 AS103 Northwestern University 0.95ms from Chicago, US
129.105.254.129 AS103 Northwestern University 1.07ms from Chicago, US
129.105.25.1 AS103 Northwestern University 1.04ms from Chicago, US
165.124.155.2 AS103 Northwestern University 0.81ms from Chicago, US
129.105.44.44 AS103 Northwestern University 0.87ms from Chicago, US
165.124.98.2 AS103 Northwestern University 0.98ms from Chicago, US
165.124.25.17 AS103 Northwestern University 0.67ms from Chicago, US
8.30.249.2 AS103 Northwestern University 1.03ms from Chicago, US
165.124.8.61 AS103 Northwestern University 0.64ms from Chicago, US
129.105.31.20 AS103 Northwestern University 1.05ms from Chicago, US
129.105.223.58 AS103 Northwestern University 0.94ms from Chicago, US
129.105.12.131 AS103 Northwestern University 1.00ms from Chicago, US
165.124.185.150 AS103 Northwestern University 0.87ms from Chicago, US
165.124.43.8 AS103 Northwestern University 0.69ms from Chicago, US
2620:10d:2040:1003::1 AS103 Northwestern University 0.36ms from Chicago, US
129.105.131.193 AS103 Northwestern University 1.00ms from Chicago, US
129.105.169.85 AS103 Northwestern University 1.01ms from Chicago, US
165.124.51.137 AS103 Northwestern University 0.71ms from Chicago, US
165.124.231.176 AS103 Northwestern University 1.69ms from Chicago, US
129.105.61.80 AS103 Northwestern University 0.90ms 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
5.39.187.247 AS58291 ColoCenter b.v. 1.57ms from Amsterdam, NL
87.202.132.247 AS6799 Ote SA (Hellenic Telecommunications Organisation) 6.99ms from Athens, GR
73.100.38.7 AS7922 Comcast Cable Communications, LLC 8.15ms from Boston, US
52.142.190.119 AS8075 Microsoft Corporation 0.20ms from Cardiff, GB
117.203.7.231 AS9829 National Internet Backbone 11.67ms from Delhi, IN
9.223.236.215 AS8075 Microsoft Corporation 0.20ms from Gaevle, SE
187.159.80.7 AS8151 UNINET 3.08ms from Mexico City, MX
38.85.138.7 AS400427 IQ Fiber 7.14ms from Miami, US
98.249.134.167 AS7922 Comcast Cable Communications, LLC 5.49ms from Miami, US
79.21.14.199 AS3269 Telecom Italia S.p.A. 3.22ms from Milan, IT
88.86.113.71 AS39392 SH.cz s.r.o. 0.30ms from Prague, CZ
89.162.121.71 AS29695 Altibox AS 15.40ms from Sandefjord, NO
183.99.84.7 AS4766 Korea Telecom 2.31ms from Seoul, KR
126.108.246.23 AS17676 SoftBank Corp. 9.44ms from Tokyo, JP
4.206.81.87 AS8075 Microsoft Corporation 0.17ms from Toronto, CA
89.230.174.55 AS21021 Multimedia Polska Sp. z o.o. 7.92ms from Warsaw, PL
95.160.190.183 AS29314 VECTRA S.A. 15.57ms from Warsaw, PL
111.161.186.215 AS4837 CHINA UNICOM China169 Backbone 4.79ms from Beijing, CN
79.193.45.71 AS3320 Deutsche Telekom AG 1.82ms from Berlin, DE
198.177.161.247 AS40292 Cintas Corporation 3.53ms from Chicago, US
146.70.113.119 AS9009 M247 Europe SRL 0.10ms from Hong Kong, HK
47.176.143.7 AS5650 Frontier Communications of America, Inc. 0.46ms from Los Angeles, US
35.136.18.39 AS33363 Charter Communications, Inc 10.92ms from Miami, US
65.32.249.167 AS33363 Charter Communications, Inc 10.39ms from Orlando, US
119.185.67.87 AS4837 CHINA UNICOM China169 Backbone 7.05ms from Qingdao, CN

Traceroute

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

$
traceroute -a -n -q1 -m6 165.124.199.143
traceroute to 165.124.199.143 (165.124.199.143): 6 hops max, 52 byte packets
2 *
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Cayenne, GF
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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