Autonomous System details

AS103

Northwestern University  ·  northwestern.edu

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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
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


                                                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.

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
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

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
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

Downstreams

There are no downstreams for this ASN.

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Pingable IPs

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

IP Address ASN Details
165.124.172.2 AS103 Northwestern University 1.20ms from Chicago, US
129.105.9.3 AS103 Northwestern University 1.15ms from Chicago, US
165.124.19.35 AS103 Northwestern University 0.81ms from Chicago, US
129.105.143.227 AS103 Northwestern University 1.15ms from Chicago, US
165.124.131.65 AS103 Northwestern University 0.79ms from Chicago, US
199.249.165.2 AS103 Northwestern University 0.97ms from Chicago, US
165.124.91.61 AS103 Northwestern University 0.87ms from Chicago, US
199.249.168.35 AS103 Northwestern University 14.67ms from Ashburn, US
129.105.169.25 AS103 Northwestern University 1.13ms from Chicago, US
165.124.36.65 AS103 Northwestern University 0.82ms from Chicago, US
129.105.97.10 AS103 Northwestern University 1.13ms from Chicago, US
165.124.170.129 AS103 Northwestern University 1.18ms from Chicago, US
165.124.251.217 AS103 Northwestern University 0.82ms from Chicago, US
199.249.169.193 AS103 Northwestern University 14.28ms from Ashburn, US
165.124.52.131 AS103 Northwestern University 1.10ms from Chicago, US
129.105.230.99 AS103 Northwestern University 1.18ms from Chicago, US
165.124.24.73 AS103 Northwestern University 0.82ms from Chicago, US
165.124.185.174 AS103 Northwestern University 1.02ms from Chicago, US
165.124.244.179 AS103 Northwestern University 0.76ms from Chicago, US
165.124.179.18 AS103 Northwestern University 1.15ms from Chicago, US
165.124.31.35 AS103 Northwestern University 1.12ms from Chicago, US
129.105.173.102 AS103 Northwestern University 1.15ms from Chicago, US
129.105.64.1 AS103 Northwestern University 1.18ms from Chicago, US
129.105.31.20 AS103 Northwestern University 1.10ms from Chicago, US
165.124.206.21 AS103 Northwestern University 0.73ms 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
188.202.59.119 AS1136 KPN B.V. 17.66ms from Amsterdam, NL
206.162.65.135 AS8047 GENERAL COMMUNICATION, INC. 5.33ms from Anchorage, US
83.212.224.199 AS5408 National Infrastructures for Research and Technology S.A. 1.77ms from Athens, GR
91.82.37.23 AS20845 DIGI Tavkozlesi es Szolgaltato Kft. 4.72ms from Budapest, HU
41.238.143.71 AS8452 TE-AS 8.24ms from Cairo, EG
178.7.183.55 AS3209 Vodafone GmbH 12.87ms from Frankfurt am Main, DE
27.71.243.7 AS7552 Viettel Group 0.22ms from Ho Chi Minh City, VN
222.219.178.199 AS4134 CHINANET BACKBONE 3.93ms from Kunming, CN
102.157.214.135 AS37705 TOPNET 16.98ms from Marseille, FR
123.243.223.199 AS7545 TPG Telecom Limited 1.88ms from Melbourne, AU
112.226.198.87 AS4837 CHINA UNICOM China169 Backbone 1.13ms from Qingdao, CN
13.88.191.231 AS8075 Microsoft Corporation 0.55ms from San Jose, US
180.81.10.247 AS9316 DACOM-PUBNETPLUS 6.86ms from Seoul, KR
89.205.89.215 AS41557 Drustvo za telekomunikaciski uslugi TELEKABEL DOOEL Stip 2.83ms from Skopje, MK
54.150.0.39 AS16509 Amazon.com, Inc. 0.26ms from Tokyo, JP
73.163.42.215 AS7922 Comcast Cable Communications, LLC 8.76ms from Ashburn, US
98.192.78.55 AS7922 Comcast Cable Communications, LLC 4.03ms from Atlanta, US
109.137.20.7 AS5432 Proximus NV 1.94ms from Brussels, BE
187.205.179.7 AS8151 UNINET 7.33ms from Guadalajara, MX
121.56.27.39 AS4134 CHINANET BACKBONE 1.45ms from Hohhot, CN
49.169.238.7 AS17858 LG POWERCOMM 1.75ms from Incheon, KR
122.41.128.7 AS17858 LG POWERCOMM 1.71ms from Incheon, KR
116.42.80.55 AS17858 LG POWERCOMM 5.91ms from Incheon, KR
223.226.77.87 AS24560 Bharti Airtel Ltd., Telemedia Services 1.97ms from Kolkata, IN
87.216.103.167 AS12479 Orange Espagne SA 1.30ms from Madrid, ES

Traceroute

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

$
traceroute -a -n -q1 -f3 165.124.244.177
traceroute to 165.124.244.177 (165.124.244.177): 64 hops max, 52 byte packets
3 [AS3356] 4.69.203.230 105.74 ms
4 [AS3356] 4.53.96.26 106.058 ms
5 [AS103] 129.105.247.226 106.377 ms
6 [AS103] 129.105.247.211 107.096 ms
7 [AS103] 165.124.244.177 106.264 ms
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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