AS number details

AS103

Northwestern University  ·  northwestern.edu

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AS103 – Northwestern University

Field Value
Country United States
Website northwestern.edu
Hosted domains 183
Number of IPv4 149,504
Number of IPv6 154,742,504,910,672,534,362,390,528
ASN type Education
Registry arin
Allocated 38 years ago on Apr 09, 1987
Updated 13 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
165.124.232.0/22 Northwestern University 1,024
8.30.248.0/22 Level 3 Parent, LLC 1,024
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
8.28.178.0/23 Northwestern University 512
165.124.17.0/24 Northwestern University 256
165.124.186.0/24 Northwestern University 256
192.26.85.0/24 Northwestern University 256
192.31.253.0/24 Northwestern University 256
192.5.143.0/24 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
38.124.97.0/24 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 183 domain names hosted across 71 IP addresses on this ASN.

IP Address Domain Domains on this IP
129.105.136.48 ██████████ 27
165.124.147.150 ██████████ 23
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
129.105.229.66 ██████████ 5
165.124.83.120 ██████████ 4
165.124.149.110 ██████████ 4

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Useful for Cybersecurity

Peers

There are 10 peers for this ASN.

Peers Name
AS11164 Internet2
AS174 Cogent Communications
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
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.

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

Pingable IPs

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

IP Address ASN Details
129.105.44.92 AS103 Northwestern University 1.26ms from Chicago, US
129.105.27.193 AS103 Northwestern University 1.41ms from Chicago, US
129.105.71.24 AS103 Northwestern University 1.36ms from Chicago, US
129.105.31.20 AS103 Northwestern University 1.34ms from Chicago, US
129.105.9.4 AS103 Northwestern University 1.40ms from Chicago, US
165.124.246.27 AS103 Northwestern University 1.62ms from Chicago, US
129.105.103.65 AS103 Northwestern University 1.39ms from Chicago, US
129.105.46.217 AS103 Northwestern University 1.02ms from Chicago, US
129.105.243.2 AS103 Northwestern University 1.42ms from Chicago, US
129.105.161.33 AS103 Northwestern University 1.47ms from Chicago, US
129.105.247.136 AS103 Northwestern University 0.64ms from Chicago, US
165.124.147.65 AS103 Northwestern University 1.12ms from Chicago, US
129.105.48.176 AS103 Northwestern University 1.28ms from Chicago, US
129.105.158.69 AS103 Northwestern University 1.28ms from Chicago, US
165.124.134.254 AS103 Northwestern University 1.13ms from Chicago, US
129.105.13.13 AS103 Northwestern University 1.28ms from Chicago, US
2620:10d:2010:6011::100 AS103 Northwestern University 1.44ms from Chicago, US
192.26.87.246 AS103 Northwestern University 0.38ms from Chicago, US
165.124.185.171 AS103 Northwestern University 1.30ms from Chicago, US
129.105.49.1 AS103 Northwestern University 1.15ms from Chicago, US
165.124.25.17 AS103 Northwestern University 1.09ms from Chicago, US
129.105.164.162 AS103 Northwestern University 1.38ms from Chicago, US
129.105.255.129 AS103 Northwestern University 1.39ms from Chicago, US
129.105.74.83 AS103 Northwestern University 1.40ms from Chicago, US
129.105.97.10 AS103 Northwestern University 1.32ms 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
77.164.25.167 AS1136 KPN B.V. 1.17ms from Amsterdam, NL
5.39.187.247 AS58291 ColoCenter b.v. 1.65ms from Amsterdam, NL
124.207.153.199 AS4808 China Unicom Beijing Province Network 6.06ms from Beijing, CN
84.185.116.103 AS3320 Deutsche Telekom AG 3.98ms from Berlin, DE
75.66.130.247 AS7922 Comcast Cable Communications, LLC 14.53ms from Dallas, US
134.101.171.247 AS15943 wilhelm.tel GmbH 0.44ms from Hamburg, DE
209.54.168.7 AS16509 Amazon.com, Inc. 1.43ms from Hyderabad, IN
84.71.81.167 AS5378 Vodafone Limited 3.74ms from London, GB
76.87.156.119 AS20001 Charter Communications Inc 6.96ms from Los Angeles, US
46.160.204.183 AS35539 Information and Communication Technologies LLC 2.53ms from Moscow, RU
182.110.108.183 AS4134 CHINANET-BACKBONE 3.83ms from Nanchang, CN
34.13.167.39 AS396982 Google LLC 0.14ms from Oudeschip, NL
69.235.239.55 AS7018 AT&T Enterprises, LLC 6.12ms from Redding, US
100.26.213.39 AS14618 Amazon.com, Inc. 0.60ms from Reston, US
69.139.10.135 AS7922 Comcast Cable Communications, LLC 7.95ms from Secaucus, US
49.29.140.135 AS4766 Korea Telecom 6.65ms from Seoul, KR
175.203.91.199 AS4766 Korea Telecom 2.96ms from Seoul, KR
14.88.7.119 AS4766 Korea Telecom 1.35ms from Seoul, KR
131.211.26.55 AS1103 SURF B.V. 1.93ms from Amsterdam, NL
69.138.188.103 AS7922 Comcast Cable Communications, LLC 5.10ms from Ashburn, US
71.30.123.199 AS7029 Windstream Communications LLC 16.72ms from Chicago, US
191.100.149.103 AS27668 ETAPA EP 7.59ms from Guayaquil, EC
18.61.166.23 AS16509 Amazon.com, Inc. 1.34ms from Hyderabad, IN
60.50.196.167 AS4788 TM TECHNOLOGY SERVICES SDN. BHD. 6.40ms from Kuala Lumpur, MY
90.250.104.39 AS5378 Vodafone Limited 10.36ms from London, GB

Traceroute

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

$
traceroute -a -n -q1 -f4 -m8 165.124.213.31
traceroute to 165.124.213.31 (165.124.213.31): 8 hops max, 52 byte packets
4 [AS8966] 5.195.70.164 1.158 ms
5 [AS8966] 194.170.186.15 73.629 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Al Fujairah City, AE
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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