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 178
Number of IPv4 149,504
Number of IPv6 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
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
165.124.186.0/24 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 178 domain names hosted across 68 IP addresses on this ASN.

IP Address Domain Domains on this IP
129.105.136.48 ██████████ 29
165.124.147.150 ██████████ 19
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
129.105.254.100 ██████████ 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, 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

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

IP Address ASN Details
165.124.43.21 AS103 Northwestern University 1.05ms from Chicago, US
165.124.49.1 AS103 Northwestern University 1.02ms from Chicago, US
129.105.46.217 AS103 Northwestern University 0.97ms from Chicago, US
165.124.138.2 AS103 Northwestern University 1.48ms from Chicago, US
165.124.0.193 AS103 Northwestern University 1.43ms from Chicago, US
199.249.167.3 AS103 Northwestern University 2.32ms from Chicago, US
129.105.2.162 AS103 Northwestern University 1.36ms from Chicago, US
129.105.186.3 AS103 Northwestern University 1.51ms from Chicago, US
129.105.125.129 AS103 Northwestern University 1.45ms from Chicago, US
199.249.168.33 AS103 Northwestern University 2.46ms from Chicago, US
129.105.48.176 AS103 Northwestern University 1.37ms from Chicago, US
165.124.245.159 AS103 Northwestern University 1.45ms from Chicago, US
165.124.41.129 AS103 Northwestern University 1.08ms from Chicago, US
38.124.97.2 AS103 Northwestern University 1.10ms from Chicago, US
165.124.10.19 AS103 Northwestern University 1.09ms from Chicago, US
129.105.82.128 AS103 Northwestern University 1.39ms from Chicago, US
165.124.28.2 AS103 Northwestern University 1.05ms from Chicago, US
129.105.231.2 AS103 Northwestern University 1.52ms from Chicago, US
165.124.82.178 AS103 Northwestern University 1.49ms from Chicago, US
129.105.5.69 AS103 Northwestern University 1.36ms from Chicago, US
129.105.44.63 AS103 Northwestern University 1.37ms from Chicago, US
165.124.130.98 AS103 Northwestern University 1.53ms from Chicago, US
129.105.9.2 AS103 Northwestern University 1.50ms from Chicago, US
8.30.249.2 AS103 Northwestern University 1.46ms from Chicago, US
129.105.161.33 AS103 Northwestern University 1.51ms 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
58.82.146.247 AS55423 JasTel Network 0.35ms from Bangkok, TH
68.251.116.183 AS7018 AT&T Enterprises, LLC 4.65ms from Chicago, US
202.86.103.7 AS18021 Unisys NZ, IT Outsourcer, 6.07ms from Christchurch, NZ
71.237.61.119 AS7922 Comcast Cable Communications, LLC 4.59ms from Denver, US
2.18.62.151 AS20940 Akamai International B.V. 0.42ms from London, GB
86.157.196.199 AS2856 British Telecommunications PLC 6.36ms from London, GB
140.99.124.55 AS9009 M247 Europe SRL 0.34ms from London, GB
99.190.249.135 AS7018 AT&T Enterprises, LLC 2.29ms from Los Angeles, US
81.9.139.199 AS12338 Euskaltel S.A. 5.33ms from Madrid, ES
97.220.86.215 AS6167 Verizon Business 15.93ms from Miami, US
95.32.185.71 AS12389 PJSC Rostelecom 8.51ms from Moscow, RU
124.18.178.103 AS18126 Chubu Telecommunications Company, Inc. 6.92ms from Osaka, JP
179.234.246.39 AS28573 Claro NXT Telecomunicacoes Ltda 7.90ms from Rio de Janeiro, BR
40.84.181.103 AS8075 Microsoft Corporation 0.26ms from San Antonio, US
189.128.108.23 AS8151 UNINET 1.33ms from Santiago de Queretaro, MX
3.37.53.55 AS16509 Amazon.com, Inc. 0.18ms from Seoul, KR
58.125.232.183 AS9318 SK Broadband Co Ltd 6.31ms from Seoul, KR
104.69.147.23 AS16625 Akamai Technologies, Inc. 0.29ms from Singapore, SG
58.164.14.87 AS1221 Telstra Limited 3.96ms from Sydney, AU
126.108.246.23 AS17676 SoftBank Corp. 9.07ms from Tokyo, JP
104.182.47.55 AS7018 AT&T Enterprises, LLC 8.67ms from Atlanta, US
186.170.26.151 AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 2.96ms from Bogota, CO
102.44.119.23 AS8452 TE-AS 3.38ms from Cairo, EG
34.136.85.103 AS396982 Google LLC 0.13ms from Council Bluffs, US
65.69.74.135 AS7018 AT&T Enterprises, LLC 1.34ms from Kansas 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 -f5 -m19 129.105.16.59
traceroute to 129.105.16.59 (129.105.16.59): 19 hops max, 52 byte packets
6 *
7 *
8 [AS6939] 184.105.222.71 93.241 ms
9 *
10 *
11 [AS103] 192.5.143.38 98.021 ms
12 [AS103] 129.105.247.226 97.583 ms
13 [AS103] 129.105.247.211 97.93 ms
14 [AS103] 129.105.253.95 98.84 ms
15 [AS103] 129.105.247.81 99.069 ms
16 [AS103] 129.105.247.39 97.08 ms
17 *
18 *
19 *
Measurement taken from IPinfo ProbeNet in Brussels, BE
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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