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 ██████████ 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
199.249.169.12 AS103 Northwestern University 14.28ms from Ashburn, US
165.124.111.111 AS103 Northwestern University 1.84ms from Chicago, US
129.105.67.38 AS103 Northwestern University 1.96ms from Chicago, US
129.105.161.35 AS103 Northwestern University 1.14ms from Chicago, US
129.105.136.80 AS103 Northwestern University 1.39ms from Chicago, US
165.124.82.179 AS103 Northwestern University 1.16ms from Chicago, US
165.124.147.65 AS103 Northwestern University 0.84ms from Chicago, US
165.124.120.26 AS103 Northwestern University 0.91ms from Chicago, US
165.124.123.135 AS103 Northwestern University 1.17ms from Chicago, US
2620:10d:2050:a0fe::2 AS103 Northwestern University 1.12ms from Chicago, US
165.124.159.2 AS103 Northwestern University 0.83ms from Chicago, US
129.105.185.33 AS103 Northwestern University 1.14ms from Chicago, US
129.105.61.226 AS103 Northwestern University 1.00ms from Chicago, US
165.124.219.254 AS103 Northwestern University 0.83ms from Chicago, US
165.124.91.62 AS103 Northwestern University 0.83ms from Chicago, US
129.105.221.146 AS103 Northwestern University 1.20ms from Chicago, US
165.124.184.135 AS103 Northwestern University 1.00ms from Chicago, US
165.124.52.131 AS103 Northwestern University 1.16ms from Chicago, US
129.105.175.129 AS103 Northwestern University 1.11ms from Chicago, US
129.105.27.194 AS103 Northwestern University 1.15ms from Chicago, US
165.124.93.78 AS103 Northwestern University 1.15ms from Chicago, US
165.124.3.98 AS103 Northwestern University 0.76ms from Chicago, US
129.105.117.88 AS103 Northwestern University 1.95ms from Chicago, US
165.124.98.2 AS103 Northwestern University 1.14ms from Chicago, US
129.105.169.2 AS103 Northwestern University 1.15ms 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
86.86.52.119 AS1136 KPN B.V. 2.87ms from Amsterdam, NL
83.212.224.199 AS5408 National Infrastructures for Research and Technology S.A. 1.59ms from Athens, GR
209.147.70.247 AS54103 MOD Mission Critical, LLC 0.14ms from Dallas, US
93.220.199.151 AS3320 Deutsche Telekom AG 4.97ms from Frankfurt am Main, DE
162.251.240.135 AS396163 My Digital Shield, Inc. 1.32ms from Los Angeles, US
153.129.46.135 AS4713 NTT DOCOMO BUSINESS,Inc. 8.19ms from Osaka, JP
185.188.17.23 AS214484 GENIUS TLC S.R.L.S. 0.47ms from Rome, IT
99.229.187.103 AS812 Rogers Communications Canada Inc. 4.72ms from Toronto, CA
199.223.115.151 AS54641 InMotion Hosting, Inc. 0.28ms from Ashburn, US
75.225.247.71 AS6167 Verizon Business 16.58ms from Chicago, US
73.181.122.87 AS7922 Comcast Cable Communications, LLC 2.33ms from Denver, US
156.246.166.55 AS44559 IT HOSTLINE LTD 0.29ms from Istanbul, TR
41.135.65.247 AS20011 Dimension Data 1.63ms from Johannesburg, ZA
92.118.50.183 AS136787 PacketHub S.A. 0.48ms from Los Angeles, US
47.138.222.151 AS5650 Frontier Communications of America, Inc. 6.00ms from Los Angeles, US
211.50.41.231 AS3786 LG DACOM Corporation 1.68ms from Seoul, KR
163.213.252.215 AS4766 Korea Telecom 5.33ms from Seoul, KR
47.102.63.151 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 3.03ms from Shanghai, CN
60.35.91.87 AS4713 NTT DOCOMO BUSINESS,Inc. 8.61ms from Tokyo, JP
68.111.97.87 AS22773 Cox Communications Inc. 8.76ms from Ashburn, US
93.196.249.215 AS3320 Deutsche Telekom AG 1.71ms from Berlin, DE
124.228.12.39 AS4134 CHINANET-BACKBONE 2.86ms from Chenzhou, CN
52.229.145.7 AS8075 Microsoft Corporation 0.30ms from Hong Kong, HK
157.245.42.119 AS14061 DigitalOcean, LLC 0.28ms from London, GB
126.142.18.167 AS17676 SoftBank Corp. 4.15ms from Osaka, JP

Traceroute

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

$
traceroute -a -n -q1 -f7 129.105.193.72
traceroute to 129.105.193.72 (129.105.193.72): 64 hops max, 52 byte packets
7 [] 151.148.14.236 0.877 ms
8 [] 151.148.14.237 0.336 ms
10 [AS103] 192.5.143.38 0.805 ms
11 [AS103] 129.105.247.226 0.636 ms
12 [AS103] 129.105.247.211 0.808 ms
13 [AS103] 129.105.253.95 1.856 ms
14 [AS103] 129.105.247.115 1.195 ms
15 [AS103] 129.105.247.71 1.377 ms
16 [AS103] 165.124.26.37 1.61 ms
17 [AS103] 165.124.26.56 1.797 ms
18 [AS103] 129.105.193.72 1.198 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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