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 107
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 107 domain names hosted across 48 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 ██████████ 10
130.69.94.131 ███████ 5
130.69.198.127 ██████████ 5
130.69.198.247 ██████████ 3
133.11.32.71 ████████ 3
130.69.92.25 ██████████ 3
130.69.94.133 ██████████ 3
133.11.87.57 ██████████ 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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ASN API & Database

Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

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

IP Address ASN Details
133.11.56.80 AS2501 The University of Tokyo 1.29ms from Tokyo, JP
130.69.241.33 AS2501 The University of Tokyo 1.42ms from Tokyo, JP
157.82.170.177 AS2501 The University of Tokyo 1.78ms from Tokyo, JP
130.69.244.3 AS2501 The University of Tokyo 2.19ms from Tokyo, JP
133.11.238.126 AS2501 The University of Tokyo 1.39ms from Tokyo, JP
133.11.24.17 AS2501 The University of Tokyo 1.97ms from Tokyo, JP
133.11.101.185 AS2501 The University of Tokyo 1.22ms from Tokyo, JP
133.11.225.117 AS2501 The University of Tokyo 2.00ms from Tokyo, JP
133.11.222.3 AS2501 The University of Tokyo 2.09ms from Tokyo, JP
130.69.126.33 AS2501 The University of Tokyo 2.51ms from Tokyo, JP
133.11.54.10 AS2501 The University of Tokyo 1.38ms from Tokyo, JP
133.11.21.20 AS2501 The University of Tokyo 2.02ms from Tokyo, JP
157.82.34.113 AS2501 The University of Tokyo 2.91ms from Tokyo, JP
133.11.218.101 AS2501 The University of Tokyo 2.08ms from Tokyo, JP
157.82.41.75 AS2501 The University of Tokyo 2.95ms from Tokyo, JP
157.82.248.33 AS2501 The University of Tokyo 2.57ms from Tokyo, JP
157.82.93.36 AS2501 The University of Tokyo 2.90ms from Tokyo, JP
157.82.242.13 AS2501 The University of Tokyo 2.58ms from Tokyo, JP
133.11.159.129 AS2501 The University of Tokyo 2.68ms from Tokyo, JP
133.11.114.64 AS2501 The University of Tokyo 1.24ms from Tokyo, JP
133.11.119.233 AS2501 The University of Tokyo 1.50ms from Tokyo, JP
157.82.236.181 AS2501 The University of Tokyo 3.76ms from Tokyo, JP
133.11.224.94 AS2501 The University of Tokyo 1.99ms from Tokyo, JP
133.11.36.7 AS2501 The University of Tokyo 1.38ms from Tokyo, JP
157.82.188.1 AS2501 The University of Tokyo 1.66ms 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
213.34.28.101 AS33915 Vodafone Libertel B.V. 0.73ms from Amsterdam, NL
192.34.34.101 AS8075 Microsoft Corporation 0.89ms from Ashburn, US
161.10.20.245 AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC 1.46ms from Bogota, CO
35.177.0.69 AS16509 Amazon.com, Inc. 0.13ms from London, GB
97.202.55.197 AS6167 Verizon Business 17.13ms from Los Angeles, US
79.135.58.229 AS21056 Vianova S.p.A 10.39ms from Milan, IT
172.105.39.85 AS63949 Akamai Connected Cloud 0.14ms from Mumbai, IN
122.221.112.21 AS17506 ARTERIA Networks Corporation 9.64ms from Osaka, JP
133.232.189.37 AS2514 NTT PC Communications, Inc. 4.77ms from Osaka, JP
80.188.173.165 AS5610 O2 Czech Republic, a.s. 0.89ms from Prague, CZ
206.130.141.229 AS13370 Ziply Fiber 1.48ms from Quincy, US
112.185.0.149 AS4766 Korea Telecom 7.16ms from Seoul, KR
206.247.150.213 AS30103 Zoom Video Communications, Inc 0.28ms from Ashburn, US
40.136.120.245 AS7029 Windstream Communications LLC 0.31ms from Ashburn, US
121.17.215.213 AS4837 CHINA UNICOM China169 Backbone 10.61ms from Beijing, CN
185.165.172.69 AS12552 GlobalConnect AB 2.99ms from Copenhagen, DK
85.197.150.149 AS34622 Bredband i Kristianstad AB 4.64ms from Copenhagen, DK
52.48.45.21 AS16509 Amazon.com, Inc. 0.27ms from Dublin, IE
149.96.179.37 AS16839 SERVICENOW, INC. 3.24ms from Frankfurt am Main, DE
118.48.215.245 AS4766 Korea Telecom 1.52ms from Incheon, KR
37.46.237.181 AS13188 CONTENT DELIVERY NETWORK LTD 6.84ms from Kyiv, UA
108.80.196.117 AS7018 AT&T Enterprises, LLC 4.69ms from Los Angeles, US
178.231.231.101 AS31615 Odido Netherlands B.V. 17.06ms from Meppel, NL
80.181.51.149 AS3269 Telecom Italia S.p.A. 4.03ms from Milan, IT
1.13.12.245 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.08ms from Nanjing, CN

Traceroute

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

$
traceroute -a -n -q1 -m11 157.82.95.255
traceroute to 157.82.95.255 (157.82.95.255): 11 hops max, 52 byte packets
1 [AS15169] 66.249.95.81 222.819 ms
3 *
4 [AS2907] 150.99.11.32 251.56 ms
5 [AS2907] 150.99.190.98 251.448 ms
6 [AS2501] 133.11.206.154 268.836 ms
7 [AS2501] 133.11.206.149 269.028 ms
8 [AS2501] 133.11.130.114 268.985 ms
9 *
10 *
11 *
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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