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 ██████████ 6
165.124.83.50 ██████████ 6
129.105.44.20 ██████████ 6
165.124.149.20 ██████████ 6
129.105.229.66 ██████████ 5
165.124.147.150 ██████████ 5
165.124.149.110 ██████████ 4
129.105.5.141 ██████████ 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

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

IP Address ASN Details
2620:10d:2050:a0fe::2 AS103 Northwestern University 1.13ms from Chicago, US
165.124.159.2 AS103 Northwestern University 0.87ms from Chicago, US
165.124.52.129 AS103 Northwestern University 1.34ms from Chicago, US
165.124.185.150 AS103 Northwestern University 1.18ms from Chicago, US
129.105.243.2 AS103 Northwestern University 1.26ms from Chicago, US
129.105.27.193 AS103 Northwestern University 1.29ms from Chicago, US
199.249.169.5 AS103 Northwestern University 14.22ms from Ashburn, US
199.249.167.1 AS103 Northwestern University 14.87ms from Ashburn, US
192.5.143.33 AS103 Northwestern University 0.47ms from Chicago, US
129.105.47.9 AS103 Northwestern University 1.22ms from Chicago, US
192.26.87.246 AS103 Northwestern University 0.55ms from Chicago, US
165.124.245.131 AS103 Northwestern University 1.20ms from Chicago, US
129.105.231.1 AS103 Northwestern University 1.24ms from Chicago, US
129.105.254.129 AS103 Northwestern University 1.29ms from Chicago, US
165.124.178.132 AS103 Northwestern University 0.84ms from Chicago, US
129.105.239.226 AS103 Northwestern University 1.21ms from Chicago, US
165.124.41.129 AS103 Northwestern University 0.77ms from Chicago, US
165.124.130.98 AS103 Northwestern University 2.00ms from Chicago, US
129.105.49.1 AS103 Northwestern University 0.87ms from Chicago, US
165.124.8.61 AS103 Northwestern University 0.74ms from Chicago, US
165.124.28.250 AS103 Northwestern University 0.79ms from Chicago, US
165.124.179.130 AS103 Northwestern University 1.26ms from Chicago, US
165.124.231.176 AS103 Northwestern University 1.99ms from Chicago, US
165.124.26.120 AS103 Northwestern University 0.80ms from Chicago, US
129.105.106.30 AS103 Northwestern University 1.11ms 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
51.136.74.247 AS8075 Microsoft Corporation 0.23ms from Amsterdam, NL
43.209.245.71 AS16509 Amazon.com, Inc. 1.59ms from Bangkok, TH
170.51.121.71 AS11664 Techtel LMDS Comunicaciones Interactivas S.A. 18.22ms from Buenos Aires, AR
83.192.32.71 AS3215 Orange S.A. 4.03ms from Frankfurt am Main, DE
8.223.69.183 AS45102 Alibaba (US) Technology Co., Ltd. 1.36ms from Hong Kong, HK
20.187.236.135 AS8075 Microsoft Corporation 0.33ms from Hong Kong, HK
36.6.27.199 AS4134 CHINANET BACKBONE 7.45ms from Huainan, CN
176.120.61.151 AS58309 Langate Ltd 7.60ms from Khmelnytskyi, UA
79.153.246.55 AS3352 TELEFONICA DE ESPANA S.A.U. 14.46ms from Madrid, ES
179.137.39.23 AS28573 Claro NXT Telecomunicacoes Ltda 19.28ms from Novo Hamburgo, BR
142.196.1.119 AS33363 Charter Communications, Inc 6.30ms from Orlando, US
125.56.70.167 AS7679 QTnet,Inc. 7.91ms from Osaka, JP
176.171.130.151 AS5410 Bouygues Telecom SA 14.14ms from Paris, FR
3.239.59.247 AS14618 Amazon.com, Inc. 0.42ms from Reston, US
85.19.123.71 AS25400 Telia Norge AS 2.30ms from Sandefjord, NO
45.195.101.7 AS44559 IT HOSTLINE LTD 0.15ms from Sao Paulo, BR
52.69.89.103 AS16509 Amazon.com, Inc. 0.19ms from Tokyo, JP
89.65.109.135 AS9141 P4 Sp. z o.o. 12.66ms from Warsaw, PL
110.231.68.119 AS4837 CHINA UNICOM China169 Backbone 11.00ms from Beijing, CN
45.247.31.55 AS24863 Link Egypt (Link.NET) 7.36ms from Cairo, EG
13.88.191.231 AS8075 Microsoft Corporation 0.55ms from San Jose, US
187.2.193.231 AS28573 Claro NXT Telecomunicacoes Ltda 12.17ms from Sao Paulo, BR
49.60.17.7 AS4766 Korea Telecom 2.83ms from Seoul, KR
172.207.246.23 AS8075 Microsoft Corporation 0.15ms from Tokyo, JP
5.44.1.183 AS39812 Closed Joint Stock Company Radiotelephone 2.43ms from Yekaterinburg, RU

Traceroute

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

$
traceroute -a -n -q1 -f2 -m6 165.124.133.12
traceroute to 165.124.133.12 (165.124.133.12): 6 hops max, 52 byte packets
2 [AS197019] 46.28.104.36 404.908 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Ceske Budejovice, CZ
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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