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 79,229,371,440,083,952,222,718,656,512
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 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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ASN API & Database

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
133.11.204.67 AS2501 The University of Tokyo 2.13ms from Tokyo, JP
157.82.69.120 AS2501 The University of Tokyo 2.78ms from Tokyo, JP
133.11.45.49 AS2501 The University of Tokyo 2.12ms from Tokyo, JP
133.11.167.168 AS2501 The University of Tokyo 2.17ms from Tokyo, JP
133.11.18.215 AS2501 The University of Tokyo 2.00ms from Tokyo, JP
130.69.250.103 AS2501 The University of Tokyo 1.81ms from Tokyo, JP
157.82.168.86 AS2501 The University of Tokyo 2.67ms from Tokyo, JP
133.11.87.42 AS2501 The University of Tokyo 2.01ms from Tokyo, JP
157.82.81.107 AS2501 The University of Tokyo 2.94ms from Tokyo, JP
157.82.9.61 AS2501 The University of Tokyo 1.93ms from Tokyo, JP
157.82.66.108 AS2501 The University of Tokyo 2.70ms from Tokyo, JP
130.69.196.205 AS2501 The University of Tokyo 2.07ms from Tokyo, JP
133.11.92.12 AS2501 The University of Tokyo 2.37ms from Tokyo, JP
133.11.4.65 AS2501 The University of Tokyo 1.87ms from Tokyo, JP
133.11.36.14 AS2501 The University of Tokyo 1.35ms from Tokyo, JP
2404:d540:1:589:2:1:2:2 AS2501 The University of Tokyo 0.99ms from Tokyo, JP
133.11.88.95 AS2501 The University of Tokyo 1.93ms from Tokyo, JP
130.69.79.11 AS2501 The University of Tokyo 1.39ms from Tokyo, JP
130.69.94.133 AS2501 The University of Tokyo 1.20ms from Tokyo, JP
157.82.140.50 AS2501 The University of Tokyo 2.80ms from Tokyo, JP
133.11.206.150 AS2501 The University of Tokyo 1.23ms from Tokyo, JP
157.82.238.77 AS2501 The University of Tokyo 2.61ms from Tokyo, JP
157.82.38.110 AS2501 The University of Tokyo 2.67ms from Tokyo, JP
130.69.103.1 AS2501 The University of Tokyo 2.60ms from Tokyo, JP
133.11.200.120 AS2501 The University of Tokyo 2.06ms 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
212.61.19.149 AS8426 ClaraNET LTD 3.58ms from Amsterdam, NL
54.197.47.213 AS14618 Amazon.com, Inc. 0.54ms from Ashburn, US
174.110.31.21 AS11426 Charter Communications Inc 11.81ms from Charlotte, US
50.109.71.101 AS5650 Frontier Communications of America, Inc. 8.99ms from Chicago, US
209.76.53.53 AS7018 AT&T Enterprises, LLC 6.42ms from Chicago, US
45.195.188.133 AS202656 Ivanov Vitaliy Sergeevich 0.18ms from Frankfurt am Main, DE
115.72.15.229 AS7552 Viettel Group 2.29ms from Ho Chi Minh City, VN
95.70.232.69 AS12735 TurkNet Iletisim Hizmetleri A.S. 3.05ms from Istanbul, TR
95.17.245.149 AS12479 Orange Espagne SA 8.07ms from Marseille, FR
98.58.94.181 AS7922 Comcast Cable Communications, LLC 5.93ms from Miami, US
201.42.115.133 AS27699 TELEFÔNICA BRASIL S.A 3.08ms from Osasco, BR
194.204.208.5 AS6713 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM 1.91ms from Rabat, MA
67.50.243.21 AS7385 Allstream Business US, LLC 12.49ms from Seattle, US
101.35.155.245 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.49ms from Shanghai, CN
221.180.5.5 AS56042 China Mobile communications corporation 3.06ms from Taiyuan, CN
157.151.53.85 AS31898 Oracle Corporation 0.13ms from Valparaiso, CL
111.6.71.133 AS24445 Henan Mobile Communications Co.,Ltd 2.67ms from Zhengzhou, CN
51.15.5.165 AS12876 Scaleway SAS 0.20ms from Amsterdam, NL
60.29.74.53 AS4837 CHINA UNICOM China169 Backbone 6.82ms from Beijing, CN
122.143.197.69 AS4837 CHINA UNICOM China169 Backbone 5.93ms from Changchun, CN
15.181.204.21 AS16509 Amazon.com, Inc. 0.10ms from Dallas, US
218.253.73.117 AS9381 HKBN Enterprise Solutions HK Limited 0.67ms from Hong Kong, HK
34.147.130.85 AS396982 Google LLC 0.11ms from London, GB
76.95.227.53 AS20001 Charter Communications Inc 4.98ms from Los Angeles, US
188.12.232.69 AS3269 Telecom Italia S.p.A. 1.91ms from Milan, IT

Traceroute

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

$
traceroute -a -n -q1 -m11 157.82.183.78
traceroute to 157.82.183.78 (157.82.183.78): 11 hops max, 52 byte packets
1 [AS26383] 91.149.236.1 2.207 ms
2 *
3 *
4 *
5 [] 210.173.184.25 97.878 ms
6 [AS2907] 150.99.11.34 117.46 ms
7 [AS2907] 150.99.190.98 109.178 ms
8 [AS2501] 133.11.206.154 117.008 ms
9 *
10 *
11 *
Measurement taken from IPinfo ProbeNet in Hong Kong, HK
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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