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 ████████ 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
157.82.170.183 AS2501 The University of Tokyo 1.76ms from Tokyo, JP
133.11.216.240 AS2501 The University of Tokyo 1.27ms from Tokyo, JP
133.11.112.137 AS2501 The University of Tokyo 2.71ms from Tokyo, JP
130.69.251.116 AS2501 The University of Tokyo 1.20ms from Tokyo, JP
157.82.9.85 AS2501 The University of Tokyo 1.97ms from Tokyo, JP
133.11.157.48 AS2501 The University of Tokyo 1.67ms from Tokyo, JP
133.11.72.113 AS2501 The University of Tokyo 2.96ms from Tokyo, JP
157.82.69.164 AS2501 The University of Tokyo 2.78ms from Tokyo, JP
133.11.143.206 AS2501 The University of Tokyo 10.97ms from Tokyo, JP
157.82.249.55 AS2501 The University of Tokyo 2.58ms from Tokyo, JP
157.82.70.60 AS2501 The University of Tokyo 2.69ms from Tokyo, JP
133.11.199.94 AS2501 The University of Tokyo 1.88ms from Tokyo, JP
130.69.5.1 AS2501 The University of Tokyo 6.14ms from Tokyo, JP
133.11.102.8 AS2501 The University of Tokyo 1.42ms from Tokyo, JP
130.69.250.103 AS2501 The University of Tokyo 1.89ms from Tokyo, JP
133.11.224.185 AS2501 The University of Tokyo 2.05ms from Tokyo, JP
157.82.238.77 AS2501 The University of Tokyo 2.58ms from Tokyo, JP
133.11.15.163 AS2501 The University of Tokyo 1.92ms from Tokyo, JP
130.69.244.3 AS2501 The University of Tokyo 2.27ms from Tokyo, JP
130.69.240.31 AS2501 The University of Tokyo 4.01ms from Tokyo, JP
133.11.134.22 AS2501 The University of Tokyo 2.19ms from Tokyo, JP
157.82.227.176 AS2501 The University of Tokyo 2.48ms from Tokyo, JP
157.82.164.18 AS2501 The University of Tokyo 2.73ms from Tokyo, JP
157.82.239.165 AS2501 The University of Tokyo 2.61ms from Tokyo, JP
133.11.87.42 AS2501 The University of Tokyo 1.97ms 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
79.211.16.245 AS3320 Deutsche Telekom AG 3.88ms from Berlin, DE
54.212.35.245 AS16509 Amazon.com, Inc. 0.17ms from Boardman, US
173.76.130.117 AS701 Verizon Business 1.89ms from Boston, US
168.93.138.37 AS16399 First Communications LLC 1.16ms from Chicago, US
87.61.105.133 AS3292 TDC Holding A/S 1.09ms from Copenhagen, DK
134.231.65.101 AS15108 Allo Communications LLC 4.48ms from Lincoln, US
81.130.227.213 AS2856 British Telecommunications PLC 2.46ms from London, GB
89.84.137.181 AS5410 Bouygues Telecom SA 6.47ms from Marseille, FR
76.122.229.69 AS7922 Comcast Cable Communications, LLC 6.53ms from Murfreesboro, US
87.160.230.69 AS3320 Deutsche Telekom AG 1.71ms from Nuernberg, DE
75.115.18.53 AS33363 Charter Communications, Inc 9.80ms from Orlando, US
211.113.251.101 AS4670 Shinbiro 6.16ms from Seoul, KR
176.96.82.37 AS48978 Orbitel LLC 8.35ms from Yekaterinburg, RU
92.104.89.101 AS3303 Swisscom (Switzerland) Ltd 0.61ms from Zuerich, CH
51.144.106.165 AS8075 Microsoft Corporation 0.22ms from Amsterdam, NL
96.110.237.133 AS7922 Comcast Cable Communications, LLC 4.10ms from Ashburn, US
52.36.109.69 AS16509 Amazon.com, Inc. 0.15ms from Boardman, US
188.120.84.69 AS31027 GlobalConnect A/S 0.55ms from Copenhagen, DK
85.25.81.5 AS61157 PlusServer GmbH 1.27ms from Duesseldorf, DE
73.101.142.245 AS7922 Comcast Cable Communications, LLC 17.63ms from Flint, US
93.226.1.21 AS3320 Deutsche Telekom AG 7.35ms from Frankfurt am Main, DE
193.227.207.149 AS12998 BGNet LLC 0.35ms from Kyiv, UA
184.181.127.229 AS22773 Cox Communications Inc. 3.98ms from Los Angeles, US
213.242.22.149 AS12389 PJSC Rostelecom 17.14ms from Moscow, RU
201.113.142.165 AS8151 UNINET 13.13ms from Santiago de Queretaro, MX

Traceroute

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

$
traceroute -a -n -q1 133.11.2.141
traceroute to 133.11.2.141 (133.11.2.141): 64 hops max, 52 byte packets
1 [AS15169] 66.249.95.81 161.971 ms
2 [AS15169] 142.251.66.206 159.534 ms
3 *
4 [AS2907] 150.99.11.32 164.58 ms
5 *
6 [AS2501] 133.11.206.154 170.498 ms
7 [AS2501] 133.11.206.149 170.26 ms
8 *
9 *
10 *
11 [AS2501] 133.11.125.148 172.09 ms
12 [AS2501] 133.11.2.141 170.949 ms
Measurement taken from IPinfo ProbeNet in Ashburn, US
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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