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 185
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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IP Ranges API

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 185 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
129.105.44.20 ██████████ 6
165.124.83.50 ██████████ 6
129.105.229.66 ██████████ 5
165.124.149.110 ██████████ 4
165.124.83.120 ██████████ 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
129.105.103.81 AS103 Northwestern University 1.40ms from Chicago, US
129.105.175.129 AS103 Northwestern University 1.42ms from Chicago, US
165.124.175.205 AS103 Northwestern University 1.08ms from Chicago, US
129.105.173.102 AS103 Northwestern University 1.32ms from Chicago, US
165.124.244.180 AS103 Northwestern University 1.04ms from Chicago, US
165.124.73.7 AS103 Northwestern University 1.45ms from Chicago, US
129.105.185.42 AS103 Northwestern University 1.41ms from Chicago, US
165.124.24.81 AS103 Northwestern University 1.11ms from Chicago, US
165.124.170.130 AS103 Northwestern University 1.36ms from Chicago, US
129.105.127.3 AS103 Northwestern University 1.40ms from Chicago, US
165.124.98.3 AS103 Northwestern University 1.41ms from Chicago, US
199.249.168.33 AS103 Northwestern University 2.37ms from Chicago, US
165.124.49.30 AS103 Northwestern University 1.05ms from Chicago, US
129.105.74.82 AS103 Northwestern University 1.42ms from Chicago, US
129.105.100.49 AS103 Northwestern University 1.45ms from Chicago, US
165.124.129.74 AS103 Northwestern University 1.42ms from Chicago, US
199.249.167.3 AS103 Northwestern University 2.32ms from Chicago, US
129.105.5.211 AS103 Northwestern University 1.28ms from Chicago, US
165.124.147.67 AS103 Northwestern University 1.14ms from Chicago, US
165.124.251.217 AS103 Northwestern University 0.67ms from Chicago, US
129.105.25.2 AS103 Northwestern University 1.40ms from Chicago, US
165.124.33.243 AS103 Northwestern University 0.99ms from Chicago, US
129.105.109.227 AS103 Northwestern University 1.44ms from Chicago, US
165.124.227.3 AS103 Northwestern University 1.45ms from Chicago, US
165.124.120.2 AS103 Northwestern University 1.14ms 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
84.83.17.119 AS1136 KPN B.V. 2.35ms from Amsterdam, NL
89.133.240.151 AS21334 One Hungary Ltd. 9.75ms from Budapest, HU
76.215.44.183 AS7018 AT&T Enterprises, LLC 18.94ms from Dallas, US
91.38.168.71 AS3320 Deutsche Telekom AG 10.56ms from Frankfurt am Main, DE
70.109.162.87 AS13977 Consolidated Communications, Inc. 7.12ms from Montreal, CA
200.204.224.215 AS27699 TELEFÔNICA BRASIL S.A 10.23ms from Osasco, BR
58.29.121.55 AS17858 LG POWERCOMM 2.09ms from Seoul, KR
183.96.227.7 AS4766 Korea Telecom 1.17ms from Seoul, KR
222.109.135.167 AS4766 Korea Telecom 1.44ms from Seoul, KR
54.178.136.215 AS16509 Amazon.com, Inc. 0.18ms from Tokyo, JP
93.114.109.7 AS58224 Iran Telecommunication Company PJS 17.43ms from Yerevan, AM
88.246.12.167 AS9121 Turk Telekomunikasyon Anonim Sirketi 1.41ms from Bursa, TR
207.113.159.119 AS13428 Surf Air Wireless, LLC 1.25ms from Chicago, US
97.224.117.135 AS6167 Verizon Business 12.13ms from Chicago, US
18.119.5.151 AS16509 Amazon.com, Inc. 0.13ms from Columbus, US
3.18.73.119 AS16509 Amazon.com, Inc. 0.14ms from Columbus, US
3.15.21.39 AS16509 Amazon.com, Inc. 0.14ms from Columbus, US
66.83.134.55 AS7029 Windstream Communications LLC 0.49ms from Dallas, US
156.234.191.87 AS138415 Yancy Limited 0.65ms from Hong Kong, HK
94.63.50.231 AS12353 Vodafone Portugal 2.10ms from Lisbon, PT
20.204.142.87 AS8075 Microsoft Corporation 0.15ms from Lohogaon, IN
86.150.113.199 AS2856 British Telecommunications PLC 4.55ms from London, GB
69.109.190.135 AS7018 AT&T Enterprises, LLC 5.70ms from Los Angeles, US
5.51.45.167 AS5410 Bouygues Telecom SA 9.93ms from Paris, FR
112.240.169.7 AS4837 CHINA UNICOM China169 Backbone 10.28ms from Qingdao, CN

Traceroute

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

$
traceroute -a -n -q1 -f9 -m15 129.105.206.186
traceroute to 129.105.206.186 (129.105.206.186): 15 hops max, 52 byte packets
9 [AS6939] 184.105.81.151 14.208 ms
10 *
11 *
12 [AS103] 192.5.143.38 20.2 ms
13 *
14 *
15 *
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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