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 31 IP addresses on this ASN.

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IP Address Domain Domains on this IP
130.158.75.59 ██████████ 11
130.158.69.105 ██████████ 3
130.158.75.33 ██████████ 3
130.158.6.121 ██████████ 2
130.158.70.188 ██████████ 2
130.158.75.35 ██████████ 2
130.158.75.40 ██████████ 2
130.158.137.78 ██████████ 2
130.158.42.64 ██████████ 2
133.51.2.252 ██████████ 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

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

IP Address ASN Details
130.158.109.254 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.191.252 AS37917 University of Tsukuba 2.47ms from Tokyo, JP
130.158.2.252 AS37917 University of Tsukuba 2.47ms from Tokyo, JP
130.158.44.62 AS37917 University of Tsukuba 2.47ms from Tokyo, JP
130.158.155.123 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.229.253 AS37917 University of Tsukuba 2.47ms from Tokyo, JP
163.220.253.28 AS37917 University of Tsukuba 2.46ms from Tokyo, JP
130.158.247.253 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.31.190 AS37917 University of Tsukuba 2.46ms from Tokyo, JP
130.158.69.189 AS37917 University of Tsukuba 2.49ms from Tokyo, JP
130.158.47.253 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.108.254 AS37917 University of Tsukuba 2.49ms from Tokyo, JP
130.158.110.253 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.241.1 AS37917 University of Tsukuba 2.70ms from Tokyo, JP
130.158.70.253 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.39.253 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.250.254 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.240.2 AS37917 University of Tsukuba 2.56ms from Tokyo, JP
130.158.75.62 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.45.254 AS37917 University of Tsukuba 2.49ms from Tokyo, JP
130.158.171.253 AS37917 University of Tsukuba 2.47ms from Tokyo, JP
130.158.7.252 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
163.220.255.136 AS37917 University of Tsukuba 2.54ms from Tokyo, JP
130.158.150.254 AS37917 University of Tsukuba 2.49ms from Tokyo, JP
130.158.226.252 AS37917 University of Tsukuba 2.44ms 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
40.70.202.45 AS8075 Microsoft Corporation 0.30ms from Boydton, US
118.250.9.125 AS4134 CHINANET BACKBONE 3.34ms from Changsha, CN
113.166.248.45 AS45899 VNPT Corp 5.09ms from Da Nang, VN
65.79.201.77 AS11067 Panhandle Telecommunications Systems, INC. 9.14ms from Dallas, US
3.69.172.253 AS16509 Amazon.com, Inc. 0.12ms from Frankfurt am Main, DE
188.195.6.253 AS3209 Vodafone GmbH 1.44ms from Frankfurt am Main, DE
84.153.18.157 AS3320 Deutsche Telekom AG 5.41ms from Frankfurt am Main, DE
20.113.31.93 AS8075 Microsoft Corporation 0.29ms from Frankfurt am Main, DE
1.54.6.221 AS18403 FPT Telecom Company 9.90ms from Hanoi, VN
122.47.185.13 AS17858 LG POWERCOMM 2.08ms from Incheon, KR
82.84.82.189 AS8612 Tiscali Italia S.P.A. 1.27ms from Milan, IT
16.164.56.221 AS16509 Amazon.com, Inc. 0.98ms from Petaẖ Tiqva, IL
183.81.191.77 AS38209 CAMINTEL, National Telecommunication Provider, Phnom Penh, Cambodia 0.59ms from Phnom Penh, KH
67.213.254.253 AS30432 STRATA NETWORKS 3.38ms from Salt Lake City, US
201.119.190.77 AS8151 UNINET 4.11ms from Santiago de Queretaro, MX
171.125.242.29 AS4837 CHINA UNICOM China169 Backbone 4.45ms from Taiyuan, CN
46.10.2.109 AS8866 Vivacom Bulgaria EAD 1.01ms from Varna, BG
172.85.102.93 AS46261 QuickPacket, LLC 0.22ms from Ashburn, US
216.169.14.93 AS12119 ITV-3 4.72ms from Chicago, US
116.171.172.173 AS4837 CHINA UNICOM China169 Backbone 7.43ms from Guiyang, CN
16.162.21.253 AS16509 Amazon.com, Inc. 0.11ms from Hong Kong, HK
212.13.141.61 AS9198 JSC Kazakhtelecom 4.72ms from Karagandy, KZ
14.205.125.13 AS4837 CHINA UNICOM China169 Backbone 9.29ms from Kunming, CN
77.4.78.173 AS6805 Telefonica Germany GmbH & Co.OHG 5.74ms from Munich, DE
61.147.93.141 AS137697 CHINATELECOM JiangSu YangZhou IDC network 2.72ms from Nanjing, CN

Traceroute

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

$
traceroute -a -n -q1 -m4 130.158.186.44
traceroute to 130.158.186.44 (130.158.186.44): 4 hops max, 52 byte packets
2 *
3 *
4 *
Measurement taken from IPinfo ProbeNet in Bucharest, RO
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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