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
130.69.94.133 ██████████ 3
133.11.32.71 ████████ 3
130.69.92.25 █████████ 3
130.69.198.247 ██████████ 3
133.11.157.58 ██████████ 2
133.11.114.10 ██████████ 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

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

IP Address ASN Details
133.11.204.67 AS2501 The University of Tokyo 2.04ms from Tokyo, JP
157.82.153.36 AS2501 The University of Tokyo 2.80ms from Tokyo, JP
133.11.41.124 AS2501 The University of Tokyo 3.01ms from Tokyo, JP
130.69.200.133 AS2501 The University of Tokyo 1.26ms from Tokyo, JP
133.11.130.202 AS2501 The University of Tokyo 1.32ms from Tokyo, JP
130.69.94.134 AS2501 The University of Tokyo 1.12ms from Tokyo, JP
133.11.170.129 AS2501 The University of Tokyo 2.52ms from Tokyo, JP
157.82.150.197 AS2501 The University of Tokyo 2.72ms from Tokyo, JP
130.69.114.253 AS2501 The University of Tokyo 1.43ms from Tokyo, JP
157.82.247.31 AS2501 The University of Tokyo 2.71ms from Tokyo, JP
157.82.22.27 AS2501 The University of Tokyo 1.36ms from Tokyo, JP
157.82.78.100 AS2501 The University of Tokyo 2.91ms from Tokyo, JP
133.11.125.202 AS2501 The University of Tokyo 1.29ms from Tokyo, JP
130.69.103.1 AS2501 The University of Tokyo 2.64ms from Tokyo, JP
157.82.231.81 AS2501 The University of Tokyo 2.41ms from Tokyo, JP
133.11.140.131 AS2501 The University of Tokyo 2.11ms from Tokyo, JP
157.82.29.68 AS2501 The University of Tokyo 2.84ms from Tokyo, JP
133.11.15.163 AS2501 The University of Tokyo 2.09ms from Tokyo, JP
157.82.162.17 AS2501 The University of Tokyo 2.82ms from Tokyo, JP
133.11.231.113 AS2501 The University of Tokyo 2.08ms from Tokyo, JP
157.82.159.33 AS2501 The University of Tokyo 2.82ms from Tokyo, JP
157.82.42.174 AS2501 The University of Tokyo 2.89ms from Tokyo, JP
157.82.0.1 AS2501 The University of Tokyo 1.35ms from Tokyo, JP
133.11.179.193 AS2501 The University of Tokyo 2.83ms from Tokyo, JP
133.11.127.93 AS2501 The University of Tokyo 1.31ms 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
20.121.32.133 AS8075 Microsoft Corporation 0.48ms from Ashburn, US
84.182.112.133 AS3320 Deutsche Telekom AG 3.88ms from Berlin, DE
34.212.248.37 AS16509 Amazon.com, Inc. 0.11ms from Boardman, US
20.22.64.5 AS8075 Microsoft Corporation 0.31ms from Boydton, US
103.172.105.181 AS139484 Sathya Web Services Private Limited 0.43ms from Chennai, IN
46.110.84.101 AS30600 Metronet 3.61ms from Chicago, US
27.156.211.37 AS4134 CHINANET-BACKBONE 9.79ms from Fuzhou, CN
23.243.122.53 AS20001 Charter Communications Inc 6.57ms from Los Angeles, US
103.123.227.213 AS138296 Juweriyah Networks Private Limited 0.20ms from Mumbai, IN
90.180.221.5 AS5610 O2 Czech Republic, a.s. 6.36ms from Prague, CZ
105.185.158.213 AS37457 Telkom SA Ltd. 18.45ms from Pretoria, ZA
95.68.236.117 AS12389 PJSC Rostelecom 12.23ms from Samara, RU
122.99.133.37 AS17878 DREAMMARK1 1.05ms from Seoul, KR
141.223.80.37 AS3784 Pohang University of Science and Technology 7.11ms from Seoul, KR
115.7.210.149 AS4766 Korea Telecom 7.07ms from Seoul, KR
210.113.201.117 AS4766 Korea Telecom 5.72ms from Seoul, KR
52.231.72.21 AS8075 Microsoft Corporation 0.29ms from Seoul, KR
221.180.5.5 AS56042 China Mobile communications corporation 2.97ms from Taiyuan, CN
8.28.233.117 AS23089 Hotwire Communications 3.83ms from Tampa, US
76.70.142.213 AS577 Bell Canada 12.48ms from Toronto, CA
5.149.45.37 AS15600 Quickline AG 9.31ms from Zuerich, CH
15.197.14.85 AS16509 Amazon.com, Inc. 0.03ms from Bangkok, TH
171.6.99.5 AS45758 Triple T Broadband Public Company Limited 2.32ms from Bangkok, TH
40.89.121.181 AS8075 Microsoft Corporation 0.31ms from Boydton, US
72.240.251.53 AS13490 Buckeye Cablevision, Inc. 8.71ms from Detroit, US

Traceroute

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

$
traceroute -a -n -q1 -m12 157.82.23.96
traceroute to 157.82.23.96 (157.82.23.96): 12 hops max, 52 byte packets
1 [AS15169] 142.251.241.130 224.863 ms
2 *
3 *
4 [AS2907] 150.99.11.32 251.085 ms
5 [AS2907] 150.99.190.98 250.727 ms
6 [AS2501] 133.11.206.154 251.743 ms
7 *
8 [AS2501] 133.11.130.114 251.677 ms
9 [AS2501] 133.11.130.82 278.737 ms
10 *
11 *
12 *
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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