Autonomous System details

AS2501

The University of Tokyo  ·  u-tokyo.ac.jp

Japan

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AS2501 – The University of Tokyo

Field Value
Country Japan
Website u-tokyo.ac.jp
Hosted domains 109
IPv4 addresses 200,704
IPv6 addresses 79,229,371,440,083,952,222,718,656,512
ASN type Education
Registry jpnic
Updated 12 years ago on Mar 19, 2014

IP Ranges

Netblock Company Num of IPs
130.69.0.0/16 University of Tokyo 65,536
133.11.0.0/16 Japan Network Information Center 65,536
157.82.0.0/16 University of Tokyo 65,536
192.51.208.0/20 University of Tokyo 4,096
Netblock Company
2404:d540::/32 The University of Tokyo
2404:d540:1::/48 THE UNIVERSITY OF TOKYO
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WHOIS Details

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                                                ASHandle:       AS2501
                                                OrgID:          AS2501
                                                ASName:         AS2501
                                                ASNumber:       AS2501
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 109 domain names hosted across 49 IP addresses on this ASN.

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IP Address Domain Domains on this IP
130.69.94.132 ████████ 30
130.69.94.134 ████████ 11
130.69.94.131 ████████ 5
130.69.198.127 ██████████ 5
130.69.92.25 █████████ 3
130.69.94.133 ██████████ 3
133.11.32.71 ████████ 3
130.69.198.247 ██████████ 3
133.11.224.138 █████████ 2
157.82.13.216 ██████████ 2

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Peers

There are 2 peers for this ASN.

Peers Name
AS2500 WIDE Project
AS2907 Research Organization of Information and Systems, National Institute of Informatics
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Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS2500 WIDE Project
AS2907 Research Organization of Information and Systems, National Institute of Informatics
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Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

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

IP Address ASN Details
157.82.142.149 AS2501 The University of Tokyo 1.93ms from Tokyo, JP
133.11.255.141 AS2501 The University of Tokyo 1.19ms from Tokyo, JP
133.11.204.67 AS2501 The University of Tokyo 1.98ms from Tokyo, JP
133.11.45.49 AS2501 The University of Tokyo 2.17ms from Tokyo, JP
157.82.145.33 AS2501 The University of Tokyo 2.82ms from Tokyo, JP
133.11.136.18 AS2501 The University of Tokyo 1.28ms from Tokyo, JP
133.11.44.30 AS2501 The University of Tokyo 2.23ms from Tokyo, JP
157.82.158.73 AS2501 The University of Tokyo 2.83ms from Tokyo, JP
130.69.240.31 AS2501 The University of Tokyo 4.01ms from Tokyo, JP
157.82.93.37 AS2501 The University of Tokyo 2.72ms from Tokyo, JP
133.11.54.7 AS2501 The University of Tokyo 1.38ms from Tokyo, JP
157.82.52.63 AS2501 The University of Tokyo 2.49ms from Tokyo, JP
133.11.119.233 AS2501 The University of Tokyo 1.43ms from Tokyo, JP
133.11.53.23 AS2501 The University of Tokyo 1.97ms from Tokyo, JP
133.11.140.131 AS2501 The University of Tokyo 2.08ms from Tokyo, JP
133.11.40.73 AS2501 The University of Tokyo 2.12ms from Tokyo, JP
157.82.125.41 AS2501 The University of Tokyo 1.14ms from Tokyo, JP
157.82.60.26 AS2501 The University of Tokyo 2.44ms from Tokyo, JP
130.69.123.11 AS2501 The University of Tokyo 1.87ms from Tokyo, JP
157.82.195.226 AS2501 The University of Tokyo 1.31ms from Tokyo, JP
133.11.18.215 AS2501 The University of Tokyo 2.18ms from Tokyo, JP
157.82.231.17 AS2501 The University of Tokyo 2.40ms from Tokyo, JP
133.11.225.118 AS2501 The University of Tokyo 2.08ms from Tokyo, JP
157.82.133.234 AS2501 The University of Tokyo 3.28ms from Tokyo, JP
157.82.79.165 AS2501 The University of Tokyo 2.84ms from Tokyo, JP

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
96.89.27.149 AS7922 Comcast Cable Communications, LLC 8.19ms from Ashburn, US
34.212.248.37 AS16509 Amazon.com, Inc. 0.12ms from Boardman, US
164.165.100.37 AS54885 State of Idaho 1.69ms from Boise, US
73.16.27.245 AS7922 Comcast Cable Communications, LLC 13.08ms from Boston, US
34.123.219.165 AS396982 Google LLC 0.11ms from Council Bluffs, US
39.190.192.85 AS56041 China Mobile communications corporation 5.12ms from Hangzhou, CN
103.170.188.5 AS142397 Politeknik Negeri Bali 16.94ms from Jakarta, ID
161.142.57.21 AS9930 TTNET-MY 5.22ms from Kuala Lumpur, MY
92.18.113.53 AS13285 TalkTalk Communications Limited 4.33ms from London, GB
90.202.96.213 AS5607 Sky UK Limited 5.03ms from London, GB
73.31.16.21 AS7922 Comcast Cable Communications, LLC 9.66ms from Manassas, US
73.244.136.133 AS7922 Comcast Cable Communications, LLC 2.95ms from Miami, US
54.204.91.197 AS14618 Amazon.com, Inc. 0.17ms from Reston, US
188.242.102.69 AS35807 SkyNet Ltd. 0.89ms from Saint Petersburg, RU
200.232.97.117 AS10429 TELEFÔNICA BRASIL S.A 0.90ms from Sao Paulo, BR
67.50.243.21 AS7385 Allstream Business US, LLC 13.01ms from Seattle, US
117.135.42.117 AS24400 Shanghai Mobile Communications Co.,Ltd. 2.00ms from Shanghai, CN
115.130.206.245 AS7545 TPG Telecom Limited 4.92ms from Sydney, AU
118.81.205.117 AS4837 CHINA UNICOM China169 Backbone 3.02ms from Taiyuan, CN
169.51.41.165 AS36351 IBM Cloud 0.96ms from Amsterdam, NL
171.213.114.213 AS4134 CHINANET-BACKBONE 6.72ms from Chengdu, CN
50.103.5.213 AS5650 Frontier Communications of America, Inc. 2.60ms from Chicago, US
50.207.139.165 AS7922 Comcast Cable Communications, LLC 0.93ms from Chicago, US
199.18.104.245 AS600 OARnet 0.28ms from Columbus, US
102.209.36.229 AS15399 Wananchi Group (Kenya) Limited 1.16ms from Dar es Salaam, TZ

Traceroute

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

$
traceroute -a -n -q1 -m11 130.69.189.241
traceroute to 130.69.189.241 (130.69.189.241): 11 hops max, 52 byte packets
1 [AS15169] 142.251.241.130 162.771 ms
2 [AS15169] 142.251.233.110 163.061 ms
3 *
4 [AS2907] 150.99.11.32 169.543 ms
5 [AS2907] 150.99.190.98 201.037 ms
6 [AS2501] 133.11.206.154 164.726 ms
7 [AS2501] 133.11.206.149 164.892 ms
8 [AS2501] 133.11.130.114 166.133 ms
9 *
10 *
11 *
Measurement taken from IPinfo ProbeNet in Columbus, 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 AS2501 at robtex.

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