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

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

IP Address ASN Details
133.11.4.205 AS2501 The University of Tokyo 2.27ms from Tokyo, JP
133.11.148.1 AS2501 The University of Tokyo 2.48ms from Tokyo, JP
133.11.51.182 AS2501 The University of Tokyo 1.25ms from Tokyo, JP
133.11.86.86 AS2501 The University of Tokyo 2.59ms from Tokyo, JP
157.82.148.6 AS2501 The University of Tokyo 2.82ms from Tokyo, JP
133.11.229.101 AS2501 The University of Tokyo 2.00ms from Tokyo, JP
133.11.57.225 AS2501 The University of Tokyo 1.29ms from Tokyo, JP
157.82.234.2 AS2501 The University of Tokyo 2.51ms from Tokyo, JP
133.11.227.4 AS2501 The University of Tokyo 2.07ms from Tokyo, JP
133.11.230.186 AS2501 The University of Tokyo 2.06ms from Tokyo, JP
130.69.103.1 AS2501 The University of Tokyo 2.48ms from Tokyo, JP
133.11.177.206 AS2501 The University of Tokyo 11.23ms from Tokyo, JP
133.11.5.64 AS2501 The University of Tokyo 2.12ms from Tokyo, JP
133.11.255.141 AS2501 The University of Tokyo 1.20ms from Tokyo, JP
133.11.200.120 AS2501 The University of Tokyo 2.05ms from Tokyo, JP
133.11.166.100 AS2501 The University of Tokyo 2.47ms from Tokyo, JP
130.69.125.21 AS2501 The University of Tokyo 2.09ms from Tokyo, JP
133.11.39.35 AS2501 The University of Tokyo 2.21ms from Tokyo, JP
130.69.124.137 AS2501 The University of Tokyo 2.31ms from Tokyo, JP
133.11.130.202 AS2501 The University of Tokyo 1.29ms from Tokyo, JP
133.11.55.130 AS2501 The University of Tokyo 1.15ms from Tokyo, JP
130.69.0.1 AS2501 The University of Tokyo 4.85ms from Tokyo, JP
133.11.134.22 AS2501 The University of Tokyo 2.26ms from Tokyo, JP
157.82.14.46 AS2501 The University of Tokyo 2.40ms from Tokyo, JP
157.82.70.60 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
110.249.157.85 AS4837 CHINA UNICOM China169 Backbone 6.56ms from Beijing, CN
113.47.105.21 AS55990 Huawei Cloud Service data center 13.25ms from Beijing, CN
91.183.127.245 AS5432 Proximus NV 1.33ms from Brussels, BE
190.181.115.5 AS52251 NORTECH 1.10ms from Buenos Aires, AR
77.75.123.181 AS42831 UK Dedicated Servers Limited 0.19ms from Coventry, GB
92.117.159.213 AS8881 1&1 Versatel GmbH 2.74ms from Duesseldorf, DE
8.134.89.165 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 0.10ms from Guangzhou, CN
5.97.75.229 AS3269 Telecom Italia S.p.A. 0.82ms from Milan, IT
197.136.187.181 AS36914 Kenya Education Network 0.80ms from Nairobi, KE
211.62.143.85 AS3786 LG DACOM Corporation 2.36ms from Seoul, KR
211.180.13.117 AS3786 LG DACOM Corporation 1.43ms from Seoul, KR
118.33.32.133 AS4766 Korea Telecom 1.16ms from Seoul, KR
210.152.100.69 AS4694 IDC Frontier Inc. 3.73ms from Tokyo, JP
180.2.88.21 AS4713 NTT DOCOMO BUSINESS,Inc. 3.39ms from Tokyo, JP
195.192.204.245 AS31317 AnschlussWerk GmbH 4.92ms from Vienna, AT
68.255.78.165 AS7018 AT&T Enterprises, LLC 6.93ms from Atlanta, US
41.45.29.101 AS8452 TE-AS 4.43ms from Cairo, EG
198.147.156.5 AS63050 MiTek Inc. 7.00ms from Chicago, US
180.211.177.213 AS45588 Bangladesh Telecommunications Company Limited (BTCL), Nationwide PSTN Operator and Data and Internet Service Provider. 3.96ms from Dhaka, BD
3.126.247.85 AS16509 Amazon.com, Inc. 0.18ms from Frankfurt am Main, DE
195.149.2.5 AS13285 TalkTalk Communications Limited 4.03ms from London, GB
81.145.98.197 AS2856 British Telecommunications PLC 6.10ms from London, GB
37.12.230.197 AS3352 TELEFONICA DE ESPANA S.A.U. 17.24ms from Madrid, ES
212.180.63.101 AS59711 HZ Hosting Ltd 0.28ms from Marseille, FR
35.152.189.85 AS16509 Amazon.com, Inc. 0.12ms from Milan, IT

Traceroute

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

$
traceroute -a -n -q1 -m9 157.82.185.134
traceroute to 157.82.185.134 (157.82.185.134): 9 hops max, 52 byte packets
1 [AS15169] 66.249.95.81 233.507 ms
2 [AS15169] 216.239.59.32 233.428 ms
3 *
4 [AS2907] 150.99.11.32 247.336 ms
5 [AS2907] 150.99.190.98 256.305 ms
6 [AS2501] 133.11.206.154 247.579 ms
7 *
8 *
9 *
Measurement taken from IPinfo ProbeNet in Berlin, DE
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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