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 79,229,371,440,083,952,629,200,000,000
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 ██████████ 27
130.69.94.134 ██████████ 8
130.69.198.127 ██████████ 5
133.11.32.71 ███████ 3
130.69.92.25 █████████ 3
130.69.198.247 ██████████ 3
133.11.86.86 ██████ 2
157.82.13.216 ██████████ 2
133.11.114.10 ██████████ 2
133.11.157.58 ██████████ 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

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

IP Address ASN Details
157.82.164.19 AS2501 The University of Tokyo 2.85ms from Tokyo, JP
133.11.143.206 AS2501 The University of Tokyo 10.94ms from Tokyo, JP
157.82.156.212 AS2501 The University of Tokyo 2.06ms from Tokyo, JP
133.11.238.126 AS2501 The University of Tokyo 1.35ms from Tokyo, JP
133.11.182.205 AS2501 The University of Tokyo 1.87ms from Tokyo, JP
130.69.240.31 AS2501 The University of Tokyo 3.44ms from Tokyo, JP
157.82.254.226 AS2501 The University of Tokyo 2.16ms from Tokyo, JP
157.82.157.21 AS2501 The University of Tokyo 2.02ms from Tokyo, JP
157.82.150.197 AS2501 The University of Tokyo 2.89ms from Tokyo, JP
133.11.3.13 AS2501 The University of Tokyo 2.05ms from Tokyo, JP
157.82.81.107 AS2501 The University of Tokyo 2.91ms from Tokyo, JP
157.82.116.96 AS2501 The University of Tokyo 0.94ms from Tokyo, JP
133.11.58.102 AS2501 The University of Tokyo 1.73ms from Tokyo, JP
157.82.79.165 AS2501 The University of Tokyo 2.86ms from Tokyo, JP
157.82.34.113 AS2501 The University of Tokyo 2.82ms from Tokyo, JP
157.82.38.110 AS2501 The University of Tokyo 2.71ms from Tokyo, JP
157.82.145.22 AS2501 The University of Tokyo 2.88ms from Tokyo, JP
133.11.114.64 AS2501 The University of Tokyo 1.26ms from Tokyo, JP
157.82.159.19 AS2501 The University of Tokyo 2.82ms from Tokyo, JP
157.82.212.80 AS2501 The University of Tokyo 2.63ms from Tokyo, JP
133.11.100.168 AS2501 The University of Tokyo 2.02ms from Tokyo, JP
157.82.172.139 AS2501 The University of Tokyo 2.93ms from Tokyo, JP
157.82.120.187 AS2501 The University of Tokyo 2.12ms from Tokyo, JP
130.69.83.61 AS2501 The University of Tokyo 6.91ms from Tokyo, JP
133.11.57.202 AS2501 The University of Tokyo 1.26ms 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
223.177.52.149 AS24560 Bharti Airtel Ltd., Telemedia Services 2.96ms from Ahmedabad, IN
35.85.153.213 AS16509 Amazon.com, Inc. 0.18ms from Boardman, US
186.30.16.149 AS19429 ETB - Colombia 1.28ms from Bogotá, CO
206.196.3.181 AS13649 Flexential Colorado Corp. 5.70ms from Chicago, US
97.223.109.117 AS6167 Verizon Business 9.22ms from Chicago, US
98.223.42.53 AS7922 Comcast Cable Communications, LLC 6.04ms from Chicago, US
99.24.176.197 AS7018 AT&T Enterprises, LLC 10.43ms from Columbus, US
90.240.134.117 AS5378 Vodafone Limited 3.62ms from Edinburgh, GB
141.239.85.181 AS36149 Hawaiian Telcom Services Company, Inc. 1.18ms from Honolulu, US
211.113.251.101 AS4670 Shinbiro 6.30ms from Incheon, KR
79.72.15.5 AS31898 Oracle Corporation 0.29ms from Jeddah, SA
164.177.153.37 AS15395 Rackspace Ltd. 1.38ms from London, GB
223.105.86.37 AS56046 China Mobile communications corporation 5.71ms from Nanjing, CN
67.17.97.85 AS3549 Level 3 Parent, LLC 0.77ms from New York City, US
56.126.159.165 AS16509 Amazon.com, Inc. 0.16ms from Osasco, BR
37.151.115.133 AS9198 JSC Kazakhtelecom 5.88ms from Pavlodar, KZ
151.22.199.149 AS1267 WIND TRE S.P.A. 8.65ms from Rome, IT
64.63.46.133 AS13414 Twitter Inc. 3.72ms from Seattle, US
112.16.100.133 AS56041 China Mobile communications corporation 8.29ms from Shanghai, CN
171.126.238.101 AS4837 CHINA UNICOM China169 Backbone 8.27ms from Taiyuan, CN
126.65.52.133 AS17676 SoftBank Corp. 3.03ms from Tokyo, JP
5.3.116.117 AS41682 JSC ER-Telecom Holding 12.64ms from Yekaterinburg, RU
96.38.75.197 AS20115 Charter Communications LLC 15.69ms from Atlanta, US
68.255.78.165 AS7018 AT&T Enterprises, LLC 6.93ms from Atlanta, US
111.165.109.181 AS4837 CHINA UNICOM China169 Backbone 4.90ms from Beijing, CN

Traceroute

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

$
traceroute -a -n -q1 -f3 -m14 130.69.217.203
traceroute to 130.69.217.203 (130.69.217.203): 14 hops max, 52 byte packets
4 *
5 [AS9002] 87.245.232.201 100.58 ms
6 *
7 [AS2907] 150.99.11.32 136.776 ms
8 [AS2907] 150.99.190.98 136.628 ms
9 [AS2501] 133.11.206.154 136.84 ms
10 [AS2501] 133.11.206.149 137.826 ms
11 [AS2501] 133.11.130.114 141.059 ms
12 *
13 *
14 *
Measurement taken from IPinfo ProbeNet in Bandung, ID
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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