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
130.69.198.127 ██████████ 5
130.69.94.131 ██████████ 5
130.69.198.247 ██████████ 3
130.69.94.133 ██████████ 3
133.11.32.71 ████████ 3
130.69.92.25 ███████ 3
133.11.157.58 ██████████ 2
133.11.224.138 ██████████ 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

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

IP Address ASN Details
157.82.36.4 AS2501 The University of Tokyo 2.89ms from Tokyo, JP
157.82.212.109 AS2501 The University of Tokyo 2.64ms from Tokyo, JP
130.69.92.85 AS2501 The University of Tokyo 1.39ms from Tokyo, JP
157.82.93.37 AS2501 The University of Tokyo 2.83ms from Tokyo, JP
133.11.48.140 AS2501 The University of Tokyo 2.01ms from Tokyo, JP
157.82.34.113 AS2501 The University of Tokyo 2.89ms from Tokyo, JP
130.69.79.8 AS2501 The University of Tokyo 1.43ms from Tokyo, JP
133.11.250.130 AS2501 The University of Tokyo 1.26ms from Tokyo, JP
133.11.144.17 AS2501 The University of Tokyo 1.99ms from Tokyo, JP
133.11.38.61 AS2501 The University of Tokyo 2.00ms from Tokyo, JP
133.11.254.22 AS2501 The University of Tokyo 1.32ms from Tokyo, JP
157.82.73.9 AS2501 The University of Tokyo 2.49ms from Tokyo, JP
157.82.38.110 AS2501 The University of Tokyo 2.89ms from Tokyo, JP
157.82.40.5 AS2501 The University of Tokyo 2.77ms from Tokyo, JP
157.82.249.55 AS2501 The University of Tokyo 2.51ms from Tokyo, JP
157.82.0.1 AS2501 The University of Tokyo 1.45ms from Tokyo, JP
133.11.116.41 AS2501 The University of Tokyo 1.48ms from Tokyo, JP
133.11.205.90 AS2501 The University of Tokyo 1.19ms from Tokyo, JP
157.82.69.164 AS2501 The University of Tokyo 3.01ms from Tokyo, JP
133.11.226.173 AS2501 The University of Tokyo 2.14ms from Tokyo, JP
157.82.172.139 AS2501 The University of Tokyo 2.98ms from Tokyo, JP
157.82.77.37 AS2501 The University of Tokyo 2.65ms from Tokyo, JP
130.69.198.115 AS2501 The University of Tokyo 2.44ms from Tokyo, JP
133.11.152.8 AS2501 The University of Tokyo 2.16ms from Tokyo, JP
133.11.231.3 AS2501 The University of Tokyo 1.98ms 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
54.224.128.5 AS14618 Amazon.com, Inc. 0.61ms from Ashburn, US
3.92.6.5 AS14618 Amazon.com, Inc. 0.95ms from Ashburn, US
122.11.43.245 AS23724 IDC, China Telecommunications Corporation 3.20ms from Beijing, CN
192.8.206.5 AS24084 PLOT NO: 3A, SECTOR 126, SEZ, NOIDA 0.45ms from Bengaluru, IN
190.181.115.5 AS52251 NORTECH 0.85ms from Buenos Aires, AR
112.194.79.101 AS4837 CHINA UNICOM China169 Backbone 4.31ms from Chengdu, CN
154.37.181.69 AS174 Cogent Communications, LLC 0.49ms from Frankfurt am Main, DE
47.239.157.53 AS45102 Alibaba (US) Technology Co., Ltd. 0.69ms from Hong Kong, HK
202.153.226.5 AS9340 INDO Internet, PT 0.45ms from Jakarta, ID
37.46.237.181 AS13188 CONTENT DELIVERY NETWORK LTD 6.84ms from Kyiv, UA
123.208.208.197 AS135887 Belong (Telstra Limited) 2.55ms from Melbourne, AU
23.205.45.133 AS35994 Akamai Technologies, Inc. 0.48ms from Miami, US
84.129.125.213 AS3320 Deutsche Telekom AG 5.20ms from Nuernberg, DE
153.170.145.213 AS4713 NTT DOCOMO BUSINESS,Inc. 2.64ms from Osaka, JP
79.24.115.133 AS3269 Telecom Italia S.p.A. 2.32ms from Rome, IT
84.211.110.101 AS25400 Telia Norge AS 6.65ms from Sandefjord, NO
4.206.90.181 AS8075 Microsoft Corporation 0.16ms from Toronto, CA
196.235.223.117 AS37492 Orange Tunisie 3.87ms from Tunis, TN
96.49.33.53 AS6327 Shaw Communications 6.58ms from Vancouver, CA
71.166.43.181 AS701 Verizon Business 5.85ms from Ashburn, US
71.14.10.101 AS20115 Charter Communications LLC 3.39ms from Atlanta, US
212.42.117.245 AS8449 "ElCat" Ltd. 0.44ms from Bishkek, KG
186.80.185.85 AS10620 Telmex Colombia S.A. 9.38ms from Bogotá, CO
200.150.73.213 AS14868 Ligga Telecomunicações S.A. 0.23ms from Curitiba, BR
174.16.110.181 AS209 CenturyLink Communications, LLC 2.07ms from Denver, US

Traceroute

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

$
traceroute -a -n -q1 -f2 -m10 130.69.8.14
traceroute to 130.69.8.14 (130.69.8.14): 10 hops max, 52 byte packets
2 [] 210.173.176.94 7.434 ms
3 [AS2907] 150.99.11.32 10.112 ms
4 [AS2907] 150.99.190.98 10.604 ms
8 *
9 *
10 *
Measurement taken from IPinfo ProbeNet in Nagano, JP
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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