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 168
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 168 domain names hosted across 69 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 ██████████ 18
165.124.149.20 ██████████ 8
129.105.193.208 ██████████ 8
165.124.83.50 ██████████ 6
129.105.44.20 ██████████ 6
165.124.147.150 ██████████ 6
129.105.229.66 ██████████ 5
129.105.254.100 ██████████ 4
165.124.149.110 ██████████ 4

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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
129.105.109.227 AS103 Northwestern University 1.01ms from Chicago, US
165.124.33.151 AS103 Northwestern University 0.55ms from Chicago, US
165.124.51.136 AS103 Northwestern University 0.73ms from Chicago, US
165.124.198.166 AS103 Northwestern University 0.89ms from Chicago, US
165.124.172.1 AS103 Northwestern University 1.01ms from Chicago, US
129.105.123.130 AS103 Northwestern University 1.08ms from Chicago, US
129.105.255.129 AS103 Northwestern University 1.07ms from Chicago, US
165.124.230.2 AS103 Northwestern University 0.75ms from Chicago, US
129.105.253.94 AS103 Northwestern University 0.75ms from Chicago, US
165.124.129.74 AS103 Northwestern University 1.00ms from Chicago, US
165.124.47.1 AS103 Northwestern University 0.70ms from Chicago, US
8.30.249.3 AS103 Northwestern University 0.93ms from Chicago, US
129.105.182.135 AS103 Northwestern University 0.93ms from Chicago, US
129.105.230.97 AS103 Northwestern University 1.09ms from Chicago, US
165.124.13.196 AS103 Northwestern University 1.04ms from Chicago, US
129.105.243.2 AS103 Northwestern University 0.96ms from Chicago, US
165.124.52.129 AS103 Northwestern University 1.06ms from Chicago, US
165.124.120.3 AS103 Northwestern University 0.75ms from Chicago, US
129.105.49.1 AS103 Northwestern University 0.66ms from Chicago, US
129.105.97.10 AS103 Northwestern University 1.01ms from Chicago, US
165.124.98.2 AS103 Northwestern University 1.01ms from Chicago, US
165.124.179.130 AS103 Northwestern University 1.03ms from Chicago, US
199.249.165.2 AS103 Northwestern University 0.78ms from Chicago, US
165.124.82.178 AS103 Northwestern University 1.01ms from Chicago, US
129.105.71.33 AS103 Northwestern University 0.93ms 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
8.152.198.215 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 1.57ms from Beijing, CN
124.148.23.103 AS4739 Internode Pty Ltd 1.97ms from Brisbane, AU
90.250.182.71 AS5378 Vodafone Limited 5.39ms from Edinburgh, GB
95.114.130.199 AS6805 Telefonica Germany GmbH & Co.OHG 9.17ms from Frankfurt am Main, DE
178.77.75.183 AS8972 Host Europe GmbH 3.17ms from Frankfurt am Main, DE
125.111.92.55 AS4134 CHINANET-BACKBONE 8.75ms from Hangzhou, CN
112.6.33.247 AS24444 Shandong Mobile Communication Company Limited 6.66ms from Jinan, CN
145.241.232.215 AS31898 Oracle Corporation 0.30ms from London, GB
81.41.189.247 AS3352 TELEFONICA DE ESPANA S.A.U. 1.82ms from Madrid, ES
60.96.22.55 AS17676 SoftBank Corp. 3.77ms from Osaka, JP
124.18.178.103 AS18126 Chubu Telecommunications Company, Inc. 6.67ms from Osaka, JP
151.104.96.167 AS54253 Oracle Corporation 1.19ms from Osaka, JP
211.230.16.151 AS4766 Korea Telecom 3.17ms from Seoul, KR
147.46.135.135 AS9488 Seoul National University 1.13ms from Seoul, KR
160.248.10.55 AS2514 NTT PC Communications, Inc. 0.84ms from Tokyo, JP
213.25.96.119 AS5617 Orange Polska Spolka Akcyjna 2.13ms from Warsaw, PL
71.14.118.55 AS20115 Charter Communications LLC 8.95ms from Atlanta, US
180.78.193.7 AS17429 BEIJING GEHUA CATV NETWORK CO.LTD 7.15ms from Beijing, CN
84.179.50.215 AS3320 Deutsche Telekom AG 3.30ms from Berlin, DE
201.185.21.151 AS13489 UNE EPM TELECOMUNICACIONES S.A. 14.66ms from Bogota, CO
100.4.181.23 AS701 Verizon Business 5.55ms from Boston, US
205.221.67.215 AS6122 Iowa Communications Network 7.61ms from Des Moines, US
3.255.221.199 AS16509 Amazon.com, Inc. 0.42ms from Dublin, IE
87.163.38.215 AS3320 Deutsche Telekom AG 2.65ms from Frankfurt am Main, DE
134.175.212.87 AS45090 Shenzhen Tencent Computer Systems Company Limited 2.21ms from Guangzhou, CN

Traceroute

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

$
traceroute -a -n -q1 -m11 129.105.129.168
traceroute to 129.105.129.168 (129.105.129.168): 11 hops max, 52 byte packets
1 [AS8849] 95.81.85.1 0.389 ms
2 *
3 *
4 *
5 [AS6939] 184.105.81.151 13.728 ms
6 *
7 *
8 [AS103] 192.5.143.38 19.901 ms
9 *
10 *
11 *
Measurement taken from IPinfo ProbeNet in Atlanta, 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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