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 154,742,504,910,672,530,000,000,000
ASN type Education
Registry arin
Allocated 39 years ago on Apr 09, 1987
Updated 14 years ago on Apr 02, 2012

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 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
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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
165.124.64.83 AS103 Northwestern University 1.39ms from Chicago, US
129.105.120.101 AS103 Northwestern University 1.03ms from Chicago, US
129.105.48.3 AS103 Northwestern University 1.18ms from Chicago, US
129.105.16.70 AS103 Northwestern University 1.40ms from Chicago, US
129.105.9.1 AS103 Northwestern University 1.30ms from Chicago, US
165.124.219.238 AS103 Northwestern University 0.81ms from Chicago, US
165.124.49.254 AS103 Northwestern University 0.77ms from Chicago, US
199.249.168.35 AS103 Northwestern University 14.78ms from Ashburn, US
165.124.244.181 AS103 Northwestern University 0.74ms from Chicago, US
165.124.135.48 AS103 Northwestern University 1.05ms from Chicago, US
165.124.147.67 AS103 Northwestern University 0.84ms from Chicago, US
129.105.125.131 AS103 Northwestern University 1.18ms from Chicago, US
2620:10d:2011:2010::8169:2c50 AS103 Northwestern University 1.67ms from Chicago, US
199.249.165.1 AS103 Northwestern University 0.88ms from Chicago, US
165.124.122.19 AS103 Northwestern University 1.42ms from Chicago, US
129.105.202.240 AS103 Northwestern University 1.42ms from Chicago, US
2620:10d:2000:2003::1 AS103 Northwestern University 1.67ms from Chicago, US
129.105.169.3 AS103 Northwestern University 1.18ms from Chicago, US
165.124.179.19 AS103 Northwestern University 1.09ms from Chicago, US
129.105.71.1 AS103 Northwestern University 1.19ms from Chicago, US
165.124.185.171 AS103 Northwestern University 0.98ms from Chicago, US
129.105.46.219 AS103 Northwestern University 0.98ms from Chicago, US
165.124.20.1 AS103 Northwestern University 0.93ms from Chicago, US
165.124.8.61 AS103 Northwestern University 0.80ms from Chicago, US
129.105.143.227 AS103 Northwestern University 1.24ms 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
192.5.27.39 AS84 Navy Network Information Center (NNIC) 0.35ms from Ashburn, US
102.186.134.71 AS24835 Vodafone Data 11.97ms from Cairo, EG
18.119.5.151 AS16509 Amazon.com, Inc. 0.10ms from Columbus, US
103.102.47.151 AS64022 Kamatera, Inc. 0.24ms from Hong Kong, HK
221.125.247.135 AS9304 HGC Global Communications Limited 12.33ms from Hong Kong, HK
39.62.216.151 AS17557 Pakistan Telecommunication Company Limited 2.57ms from Lahore, PK
104.34.200.215 AS20001 Charter Communications Inc 4.81ms from Los Angeles, US
117.217.95.199 AS9829 National Internet Backbone 15.85ms from Mumbai, IN
69.142.23.199 AS7922 Comcast Cable Communications, LLC 6.59ms from New York City, US
177.175.94.7 AS26599 TELEFÔNICA BRASIL S.A 11.41ms from Porto Alegre, BR
52.52.27.87 AS16509 Amazon.com, Inc. 0.16ms from San Jose, US
180.81.10.247 AS9316 DACOM-PUBNETPLUS 7.09ms from Seoul, KR
213.25.96.119 AS5617 Orange Polska Spolka Akcyjna 1.93ms from Warsaw, PL
89.20.67.7 AS41480 Systemec BV 3.44ms from Amsterdam, NL
181.97.27.103 AS7303 Telecom Argentina S.A. 9.78ms from Asuncion, PY
110.250.165.103 AS4837 CHINA UNICOM China169 Backbone 9.32ms from Beijing, CN
178.223.43.119 AS8400 TELEKOM SRBIJA a.d. 1.13ms from Belgrade, RS
117.5.109.247 AS7552 Viettel Group 1.23ms from Hanoi, VN
113.180.32.23 AS45899 VNPT Corp 2.32ms from Ho Chi Minh City, VN
120.223.233.7 AS9808 China Mobile Communications Group Co., Ltd. 0.44ms from Jinan, CN
85.133.40.215 AS24867 Rackspace Ltd. 2.84ms from London, GB
86.137.4.71 AS2856 British Telecommunications PLC 5.87ms from London, GB
47.138.222.151 AS5650 Frontier Communications of America, Inc. 5.97ms from Los Angeles, US
139.124.2.103 AS2457 Renater 1.72ms from Marseille, FR
24.45.186.183 AS6128 Cablevision Systems Corp. 7.49ms from New York City, US

Traceroute

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

$
traceroute -a -n -q1 -f4 -m10 165.124.94.0
traceroute to 165.124.94.0 (165.124.94.0): 10 hops max, 52 byte packets
4 [AS6939] 184.105.81.151 42.392 ms
5 *
6 *
7 [AS103] 192.5.143.38 56.387 ms
8 *
9 *
10 *
Measurement taken from IPinfo ProbeNet in Calgary, CA
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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