Autonomous System details

AS37917

University of Tsukuba  ·  tsukuba.ac.jp

Japan

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AS37917 – University of Tsukuba

Field Value
Country Japan
Website tsukuba.ac.jp
Hosted domains 48
IPv4 addresses 132,096
IPv6 addresses 0
ASN type Education
Registry jpnic
Updated 19 years ago on Jun 11, 2007

IP Ranges

Netblock Company Num of IPs
130.158.0.0/16 University of Tsukuba 65,536
133.51.0.0/16 Japan Network Information Center 65,536
163.220.252.0/22 University of Tsukuba 1,024

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS37917
                                                OrgID:          AS37917
                                                ASName:         AS37917
                                                ASNumber:       AS37917
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 48 domain names hosted across 33 IP addresses on this ASN.

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IP Address Domain Domains on this IP
130.158.75.59 █████████ 11
130.158.75.33 ██████████ 3
130.158.69.105 ██████████ 3
130.158.42.64 ██████████ 2
130.158.137.78 ██████████ 2
130.158.70.188 ██████████ 2
130.158.75.40 ██████████ 2
130.158.6.121 ██████████ 2
130.158.75.35 ██████████ 1
130.158.70.166 █████████ 1

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Peers

There are 2 peers for this ASN.

Peers Name
AS2907 Research Organization of Information and Systems, National Institute of Informatics
AS63770 Industrial Cyber Security Center of Excellence
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Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS2907 Research Organization of Information and Systems, National Institute of Informatics
AS63770 Industrial Cyber Security Center of Excellence
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Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

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

IP Address ASN Details
130.158.110.254 AS37917 University of Tsukuba 2.46ms from Tokyo, JP
163.220.252.66 AS37917 University of Tsukuba 2.48ms from Tokyo, JP
130.158.7.253 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
163.220.255.136 AS37917 University of Tsukuba 2.52ms from Tokyo, JP
130.158.42.254 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.196.13 AS37917 University of Tsukuba 15.40ms from Tokyo, JP
130.158.41.253 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.237.253 AS37917 University of Tsukuba 2.46ms from Tokyo, JP
130.158.2.252 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.13.253 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.15.126 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.251.253 AS37917 University of Tsukuba 2.46ms from Tokyo, JP
130.158.170.254 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.31.190 AS37917 University of Tsukuba 2.48ms from Tokyo, JP
130.158.227.254 AS37917 University of Tsukuba 2.72ms from Tokyo, JP
130.158.48.253 AS37917 University of Tsukuba 12.87ms from Tokyo, JP
130.158.171.252 AS37917 University of Tsukuba 2.46ms from Tokyo, JP
130.158.6.14 AS37917 University of Tsukuba 2.47ms from Tokyo, JP
130.158.150.254 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.233.253 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.153.252 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.231.164 AS37917 University of Tsukuba 2.59ms from Tokyo, JP
130.158.71.253 AS37917 University of Tsukuba 2.42ms from Tokyo, JP
130.158.1.253 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.49.17 AS37917 University of Tsukuba 11.34ms 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
52.39.104.157 AS16509 Amazon.com, Inc. 0.16ms from Boardman, US
190.171.78.253 AS271792 ONRED SOLUCIONES DE CONECTIVIDAD S.A.S. 5.38ms from Bogota, CO
102.191.173.221 AS24835 Vodafone Data 4.07ms from Cairo, EG
129.128.72.13 AS3359 University of Alberta 5.42ms from Calgary, CA
34.247.215.141 AS16509 Amazon.com, Inc. 0.21ms from Dublin, IE
91.45.125.141 AS3320 Deutsche Telekom AG 6.01ms from Duesseldorf, DE
86.18.69.29 AS5089 Virgin Media Limited 5.26ms from Erith, GB
87.143.111.61 AS3320 Deutsche Telekom AG 5.34ms from Frankfurt am Main, DE
116.98.188.205 AS7552 Viettel Group 15.38ms from Ho Chi Minh City, VN
39.60.212.61 AS17557 Pakistan Telecommunication Company Limited 1.98ms from Islamabad, PK
84.240.246.157 AS9198 JSC Kazakhtelecom 0.58ms from Karagandy, KZ
205.193.156.253 AS11079 Zayo Bandwidth 5.66ms from Montreal, CA
188.143.233.13 AS34665 Petersburg Internet Network ltd. 0.23ms from Saint Petersburg, RU
52.155.57.13 AS8075 Microsoft Corporation 0.55ms from San Jose, US
133.32.4.13 AS2519 ARTERIA Networks Corporation 2.32ms from Tokyo, JP
213.200.209.205 AS3303 Swisscom (Switzerland) Ltd 1.05ms from Zuerich, CH
195.35.222.205 AS33915 Vodafone Libertel B.V. 0.67ms from Amsterdam, NL
77.243.144.173 AS3301 Telia Company AB 7.00ms from Goeteborg, SE
84.251.243.29 AS1759 Telia Finland Oyj 1.23ms from Helsinki, FI
137.189.128.253 AS3661 The Chinese University of Hong Kong 1.41ms from Hong Kong, HK
72.27.73.205 AS30689 FLOW 1.59ms from Kingston, JM
94.136.221.141 AS30881 MTS PJSC 5.64ms from Moscow, RU
62.231.201.253 AS28885 OmanTel NAP 3.14ms from Muscat, OM
84.228.232.173 AS12400 Partner Communications Ltd. 3.28ms from Rosh Ha‘Ayin, IL
126.139.35.237 AS17676 SoftBank Corp. 1.09ms from Tokyo, JP

Traceroute

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

$
traceroute -a -n -q1 -f2 -m9 130.158.202.28
traceroute to 130.158.202.28 (130.158.202.28): 9 hops max, 52 byte packets
2 [AS917] 199.119.65.2 0.136 ms
3 [AS969] 199.119.64.236 274.564 ms
4 *
5 [AS1299] 62.115.203.18 1.184 ms
6 [AS2497] 202.232.1.137 0.254 ms
7 *
8 *
9 *
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 AS37917 at robtex.

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