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
157.82.120.103 AS2501 The University of Tokyo 2.14ms from Tokyo, JP
157.82.161.53 AS2501 The University of Tokyo 2.79ms from Tokyo, JP
133.11.248.151 AS2501 The University of Tokyo 1.57ms from Tokyo, JP
157.82.148.6 AS2501 The University of Tokyo 2.75ms from Tokyo, JP
157.82.112.57 AS2501 The University of Tokyo 0.91ms from Tokyo, JP
133.11.9.20 AS2501 The University of Tokyo 1.25ms from Tokyo, JP
157.82.40.134 AS2501 The University of Tokyo 2.82ms from Tokyo, JP
157.82.104.81 AS2501 The University of Tokyo 47.33ms from Tokyo, JP
133.11.235.20 AS2501 The University of Tokyo 1.76ms from Tokyo, JP
157.82.249.217 AS2501 The University of Tokyo 2.56ms from Tokyo, JP
133.11.17.79 AS2501 The University of Tokyo 2.06ms from Tokyo, JP
133.11.181.182 AS2501 The University of Tokyo 12.16ms from Tokyo, JP
157.82.111.240 AS2501 The University of Tokyo 3.00ms from Tokyo, JP
130.69.0.1 AS2501 The University of Tokyo 4.21ms from Tokyo, JP
157.82.129.65 AS2501 The University of Tokyo 1.53ms from Tokyo, JP
133.11.11.98 AS2501 The University of Tokyo 1.93ms from Tokyo, JP
157.82.192.25 AS2501 The University of Tokyo 2.56ms from Tokyo, JP
157.82.156.74 AS2501 The University of Tokyo 2.00ms from Tokyo, JP
157.82.159.19 AS2501 The University of Tokyo 2.77ms from Tokyo, JP
133.11.45.49 AS2501 The University of Tokyo 2.13ms from Tokyo, JP
133.11.32.16 AS2501 The University of Tokyo 1.97ms from Tokyo, JP
133.11.232.71 AS2501 The University of Tokyo 1.23ms from Tokyo, JP
133.11.222.90 AS2501 The University of Tokyo 2.13ms from Tokyo, JP
133.11.216.240 AS2501 The University of Tokyo 1.24ms from Tokyo, JP
133.11.49.4 AS2501 The University of Tokyo 1.86ms 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
67.179.148.197 AS7922 Comcast Cable Communications, LLC 5.41ms from Ashburn, US
184.71.201.245 AS6327 Shaw Communications 1.01ms from Calgary, CA
124.55.168.229 AS17858 LG POWERCOMM 1.44ms from Incheon, KR
91.237.210.53 AS199379 Markerstudy Insurance Services Limited 3.48ms from London, GB
51.190.166.149 AS5607 Sky UK Limited 0.88ms from London, GB
37.68.230.181 AS15557 Societe Francaise Du Radiotelephone - SFR SA 13.09ms from Lyon, FR
73.194.45.229 AS7922 Comcast Cable Communications, LLC 6.41ms from New York City, US
163.221.167.85 AS131158 Nara Institute of Science and Technology, National University Corporation 1.80ms from Osaka, JP
31.184.196.5 AS34665 Petersburg Internet Network ltd. 0.38ms from Saint Petersburg, RU
124.10.87.85 AS9924 Taiwan Fixed Network, Telco and Network Service Provider. 14.37ms from Taipei, TW
162.158.151.165 AS13335 Cloudflare, Inc. 0.47ms from Tbilisi, GE
213.34.28.101 AS33915 Vodafone Libertel B.V. 0.75ms from Amsterdam, NL
193.121.77.245 AS5432 Proximus NV 1.28ms from Brussels, BE
168.93.138.37 AS16399 First Communications LLC 1.41ms from Chicago, US
74.125.64.133 AS396982 Google LLC 0.71ms from Council Bluffs, US
181.175.107.213 AS14522 SERVICIOS DE TELECOMUNICACIONES SETEL S.A. (XTRIM EC) 1.49ms from Guayaquil, EC
218.253.73.117 AS9381 HKBN Enterprise Solutions HK Limited 0.70ms from Hong Kong, HK
212.253.242.149 AS34984 Superonline Iletisim Hizmetleri A.S. 12.11ms from Istanbul, TR
72.27.13.149 AS30689 FLOW 6.58ms from Kingston, JM
74.177.190.5 AS8075 Microsoft Corporation 0.18ms from London, GB
176.173.57.165 AS5410 Bouygues Telecom SA 6.96ms from Marseille, FR
123.208.208.197 AS135887 Belong (Telstra Limited) 2.85ms from Melbourne, AU
79.135.58.229 AS21056 Vianova S.p.A 11.39ms from Milan, IT
85.20.71.245 AS8968 BT Italia S.p.A. 6.50ms from Milan, IT
97.68.62.229 AS33363 Charter Communications, Inc 2.19ms from Orlando, US

Traceroute

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

$
traceroute -a -n -q1 -m10 130.69.169.142
traceroute to 130.69.169.142 (130.69.169.142): 10 hops max, 52 byte packets
1 [AS15169] 142.251.241.130 224.803 ms
2 [AS15169] 108.170.231.100 227.778 ms
3 *
4 [AS2907] 150.99.11.32 251.447 ms
5 [AS2907] 150.99.190.98 253.964 ms
6 [AS2501] 133.11.206.154 251.665 ms
7 [AS2501] 133.11.206.149 259.671 ms
8 *
9 *
10 *
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 AS2501 at robtex.

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