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 ██████████ 27
130.69.94.134 ██████████ 8
130.69.198.127 ██████████ 5
133.11.32.71 ███████ 3
130.69.92.25 █████████ 3
130.69.198.247 ██████████ 3
133.11.86.86 ██████ 2
157.82.13.216 ██████████ 2
133.11.114.10 ██████████ 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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Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

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

IP Address ASN Details
157.82.150.197 AS2501 The University of Tokyo 2.89ms from Tokyo, JP
157.82.153.176 AS2501 The University of Tokyo 2.97ms from Tokyo, JP
133.11.227.4 AS2501 The University of Tokyo 2.07ms from Tokyo, JP
133.11.21.95 AS2501 The University of Tokyo 2.08ms from Tokyo, JP
133.11.240.198 AS2501 The University of Tokyo 1.91ms from Tokyo, JP
133.11.43.230 AS2501 The University of Tokyo 2.07ms from Tokyo, JP
130.69.125.21 AS2501 The University of Tokyo 2.09ms from Tokyo, JP
157.82.166.10 AS2501 The University of Tokyo 2.74ms from Tokyo, JP
157.82.81.107 AS2501 The University of Tokyo 2.91ms from Tokyo, JP
133.11.226.214 AS2501 The University of Tokyo 2.08ms from Tokyo, JP
157.82.13.244 AS2501 The University of Tokyo 2.77ms from Tokyo, JP
133.11.177.206 AS2501 The University of Tokyo 11.23ms from Tokyo, JP
133.11.36.65 AS2501 The University of Tokyo 2.66ms from Tokyo, JP
157.82.10.9 AS2501 The University of Tokyo 1.98ms from Tokyo, JP
133.11.220.114 AS2501 The University of Tokyo 2.13ms from Tokyo, JP
157.82.156.33 AS2501 The University of Tokyo 2.95ms from Tokyo, JP
157.82.93.37 AS2501 The University of Tokyo 2.76ms from Tokyo, JP
133.11.231.136 AS2501 The University of Tokyo 2.06ms from Tokyo, JP
157.82.117.125 AS2501 The University of Tokyo 0.93ms from Tokyo, JP
130.69.100.217 AS2501 The University of Tokyo 2.06ms from Tokyo, JP
157.82.69.164 AS2501 The University of Tokyo 2.80ms from Tokyo, JP
133.11.218.67 AS2501 The University of Tokyo 1.97ms from Tokyo, JP
157.82.247.144 AS2501 The University of Tokyo 2.63ms from Tokyo, JP
157.82.14.46 AS2501 The University of Tokyo 2.40ms from Tokyo, JP
157.82.111.250 AS2501 The University of Tokyo 2.98ms 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
194.39.104.69 AS9136 Wobcom GmbH 3.76ms from Berlin, DE
4.19.189.69 AS3356 Level 3 Parent, LLC 0.37ms from Denver, US
91.8.45.37 AS3320 Deutsche Telekom AG 4.26ms from Frankfurt am Main, DE
110.87.27.197 AS4134 CHINANET BACKBONE 6.40ms from Fuzhou, CN
1.183.47.165 AS4134 CHINANET BACKBONE 3.77ms from Hohhot, CN
20.24.255.37 AS8075 Microsoft Corporation 0.28ms from Hong Kong, HK
84.44.88.245 AS15924 Vodafone Net Iletisim Hizmetler AS 4.39ms from Istanbul, TR
133.69.3.21 AS2523 Internet Technology Research Consortium 2.07ms from Osaka, JP
13.52.120.101 AS16509 Amazon.com, Inc. 0.15ms from San Jose, US
200.232.97.117 AS10429 TELEFÔNICA BRASIL S.A 0.90ms from Sao Paulo, BR
177.170.172.117 AS26599 TELEFÔNICA BRASIL S.A 2.17ms from Sao Paulo, BR
211.180.13.117 AS3786 LG DACOM Corporation 1.43ms from Seoul, KR
60.237.68.101 AS2518 BIGLOBE Inc. 19.43ms from Tokyo, JP
212.61.19.149 AS8426 ClaraNET LTD 3.71ms from Amsterdam, NL
213.233.60.245 AS5394 Unidata 3.80ms from Arezzo, IT
110.249.157.85 AS4837 CHINA UNICOM China169 Backbone 6.56ms from Beijing, CN
73.16.27.245 AS7922 Comcast Cable Communications, LLC 13.68ms from Boston, US
81.0.70.85 AS12301 Invitech ICT Services Kft. 0.73ms from Budapest, HU
206.196.3.181 AS13649 Flexential Colorado Corp. 5.70ms from Chicago, US
93.226.1.21 AS3320 Deutsche Telekom AG 7.17ms from Frankfurt am Main, DE
27.156.250.53 AS4134 CHINANET BACKBONE 3.31ms from Fuzhou, CN
83.3.66.69 AS5617 Orange Polska Spolka Akcyjna 7.71ms from Gdansk, PL
42.186.77.21 AS45062 Netease Network 3.87ms from Hangzhou, CN
112.101.254.149 AS17897 asn for Heilongjiang Provincial Net of CT 10.80ms from Harbin, CN
73.77.36.245 AS7922 Comcast Cable Communications, LLC 6.85ms from Houston, US

Traceroute

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

$
traceroute -a -n -q1 -m11 133.11.184.186
traceroute to 133.11.184.186 (133.11.184.186): 11 hops max, 52 byte packets
1 [AS15169] 66.249.95.81 235.388 ms
2 [AS15169] 142.251.66.206 235.488 ms
3 *
4 [AS2907] 150.99.11.32 248.878 ms
5 [AS2907] 150.99.190.98 257.838 ms
6 [AS2501] 133.11.206.154 248.835 ms
7 [AS2501] 133.11.206.149 257.832 ms
8 [AS2501] 133.11.130.114 258.045 ms
9 *
10 *
11 *
Measurement taken from IPinfo ProbeNet in Berlin, DE
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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