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 154,742,504,910,672,534,362,390,528
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 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 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

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

IP Address ASN Details
129.105.175.135 AS103 Northwestern University 1.10ms from Chicago, US
165.124.147.65 AS103 Northwestern University 0.92ms from Chicago, US
165.124.8.1 AS103 Northwestern University 0.77ms from Chicago, US
165.124.29.217 AS103 Northwestern University 1.05ms from Chicago, US
129.105.64.1 AS103 Northwestern University 1.22ms from Chicago, US
165.124.83.77 AS103 Northwestern University 1.15ms from Chicago, US
129.105.43.144 AS103 Northwestern University 1.43ms from Chicago, US
129.105.136.67 AS103 Northwestern University 1.39ms from Chicago, US
129.105.217.70 AS103 Northwestern University 1.42ms from Chicago, US
129.105.179.43 AS103 Northwestern University 1.11ms from Chicago, US
129.105.74.1 AS103 Northwestern University 1.15ms from Chicago, US
129.105.208.146 AS103 Northwestern University 1.46ms from Chicago, US
129.105.47.9 AS103 Northwestern University 1.12ms from Chicago, US
129.105.231.2 AS103 Northwestern University 1.19ms from Chicago, US
165.124.250.190 AS103 Northwestern University 1.34ms from Chicago, US
129.105.103.81 AS103 Northwestern University 1.10ms from Chicago, US
165.124.227.51 AS103 Northwestern University 1.22ms from Chicago, US
129.105.160.12 AS103 Northwestern University 1.42ms from Chicago, US
165.124.245.159 AS103 Northwestern University 1.09ms from Chicago, US
129.105.1.9 AS103 Northwestern University 0.99ms from Chicago, US
129.105.131.194 AS103 Northwestern University 1.19ms from Chicago, US
165.124.98.3 AS103 Northwestern University 1.14ms from Chicago, US
165.124.231.228 AS103 Northwestern University 1.75ms from Chicago, US
165.124.65.79 AS103 Northwestern University 1.30ms from Chicago, US
129.105.222.1 AS103 Northwestern University 1.23ms 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. 17.78ms from Amsterdam, NL
173.22.195.23 AS30036 Mediacom Communications Corp 17.45ms from Atlanta, US
49.229.34.71 AS45458 SBN-ISP/AWN-ISP and SBN-NIX/AWN-NIX 1.50ms from Bangkok, TH
79.112.78.39 AS57269 DIGI SPAIN TELECOM S.A 1.02ms from Barcelona, ES
186.29.106.247 AS19429 ETB - Colombia 1.01ms from Bogota, CO
52.50.148.183 AS16509 Amazon.com, Inc. 0.28ms from Dublin, IE
178.136.49.215 AS6703 PRIVATE JOINT-STOCK COMPANY "FARLEP-INVEST" 6.29ms from Kyiv, UA
211.27.109.151 AS9443 Vocus Retail 1.31ms from Melbourne, AU
44.197.7.215 AS14618 Amazon.com, Inc. 0.21ms from Reston, US
199.193.22.39 AS54363 Baker Hughes Holdings LLC 2.39ms from Atlanta, US
150.255.23.135 AS4837 CHINA UNICOM China169 Backbone 12.92ms from Guangzhou, CN
171.231.67.199 AS7552 Viettel Group 14.94ms from Ho Chi Minh City, VN
161.81.38.183 AS137872 China Mobile Hong Kong Company Limited 2.14ms from Hong Kong, HK
66.137.99.71 AS7018 AT&T Enterprises, LLC 1.35ms from Houston, US
58.76.159.135 AS3786 LG DACOM Corporation 3.05ms from Incheon, KR
5.66.190.7 AS5607 Sky UK Limited 6.66ms from London, GB
69.109.190.135 AS7018 AT&T Enterprises, LLC 4.20ms from Los Angeles, US
104.56.193.215 AS7018 AT&T Enterprises, LLC 2.76ms from Miami, US
73.0.169.71 AS7922 Comcast Cable Communications, LLC 6.69ms from Miami, US
178.124.74.247 AS6697 Republican Unitary Telecommunication Enterprise Beltelecom 6.26ms from Minsk, BY
58.211.130.199 AS4134 CHINANET-BACKBONE 4.66ms from Nanjing, CN
218.4.214.87 AS4134 CHINANET-BACKBONE 4.07ms from Nanjing, CN
83.115.252.23 AS3215 Orange S.A. 6.40ms from Paris, FR
193.179.25.71 AS13036 T-Mobile Czech Republic a.s. 4.01ms from Prague, CZ
213.172.3.135 AS24913 Bank Saint Petersburg PJSC 10.07ms from Saint Petersburg, RU

Traceroute

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

$
traceroute -a -n -q1 -f3 199.249.165.2
traceroute to 199.249.165.2 (199.249.165.2): 64 hops max, 52 byte packets
3 [] 84.17.33.92 0.206 ms
5 [AS174] 154.54.82.141 0.624 ms
6 [AS174] 154.54.94.118 0.669 ms
7 [AS174] 154.24.20.242 1.197 ms
8 [AS174] 38.104.98.30 1.021 ms
10 [AS103] 129.105.247.211 1.424 ms
11 [AS103] 199.249.165.2 1.409 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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