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 49
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 49 domain names hosted across 34 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
130.158.6.121 ██████████ 2
130.158.137.78 ██████████ 2
130.158.70.188 ██████████ 2
130.158.75.36 ██████████ 1
130.158.41.201 █████████ 1
130.158.46.2 ██████████ 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

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

IP Address ASN Details
130.158.251.254 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.240.3 AS37917 University of Tsukuba 2.54ms from Tokyo, JP
130.158.29.189 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.227.254 AS37917 University of Tsukuba 2.75ms from Tokyo, JP
130.158.231.163 AS37917 University of Tsukuba 2.58ms from Tokyo, JP
163.220.253.77 AS37917 University of Tsukuba 2.42ms from Tokyo, JP
130.158.171.253 AS37917 University of Tsukuba 2.42ms from Tokyo, JP
130.158.43.252 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.48.251 AS37917 University of Tsukuba 17.27ms from Tokyo, JP
130.158.109.253 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
163.220.255.136 AS37917 University of Tsukuba 2.47ms from Tokyo, JP
130.158.223.254 AS37917 University of Tsukuba 2.83ms from Tokyo, JP
130.158.153.61 AS37917 University of Tsukuba 2.42ms from Tokyo, JP
130.158.30.253 AS37917 University of Tsukuba 2.42ms from Tokyo, JP
130.158.239.254 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.233.253 AS37917 University of Tsukuba 2.42ms from Tokyo, JP
130.158.191.252 AS37917 University of Tsukuba 2.42ms from Tokyo, JP
130.158.245.252 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.45.252 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.234.38 AS37917 University of Tsukuba 2.85ms from Tokyo, JP
130.158.228.124 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.152.254 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.241.20 AS37917 University of Tsukuba 2.62ms from Tokyo, JP
130.158.41.253 AS37917 University of Tsukuba 2.46ms from Tokyo, JP
130.158.224.254 AS37917 University of Tsukuba 2.41ms 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
154.241.244.13 AS36947 Telecom Algeria 10.81ms from Algiers, DZ
73.99.51.29 AS7922 Comcast Cable Communications, LLC 7.10ms from Ashburn, US
222.130.180.205 AS4808 China Unicom Beijing Province Network 3.50ms from Beijing, CN
64.132.138.13 AS3549 Level 3 Parent, LLC 2.60ms from Charlotte, US
117.243.110.237 AS9829 National Internet Backbone 10.63ms from Chennai, IN
216.135.7.109 AS7029 Windstream Communications LLC 11.00ms from Chicago, US
108.239.216.189 AS7018 AT&T Enterprises, LLC 2.32ms from Dallas, US
98.20.195.109 AS7029 Windstream Communications LLC 12.75ms from Dallas, US
85.22.127.253 AS15763 DOKOM Gesellschaft fuer Telekommunikation mbH 2.55ms from Duesseldorf, DE
123.27.159.173 AS45899 VNPT Corp 2.44ms from Hanoi, VN
3.8.46.205 AS16509 Amazon.com, Inc. 0.14ms from London, GB
87.74.118.253 AS25310 Vodafone Limited 5.27ms from London, GB
81.92.211.93 AS42973 M247 UK Ltd 0.86ms from London, GB
2.184.175.61 AS58224 Iran Telecommunication Company PJS 19.52ms from Manama, BH
178.125.240.29 AS6697 Republican Unitary Telecommunication Enterprise Beltelecom 1.87ms from Minsk, BY
171.60.163.93 AS24560 Bharti Airtel Ltd., Telemedia Services 15.01ms from Mumbai, IN
114.19.78.141 AS2516 KDDI CORPORATION 6.83ms from Osaka, JP
188.187.179.253 AS41786 JSC "ER-Telecom Holding" 8.45ms from Samara, RU
108.192.22.45 AS7018 AT&T Enterprises, LLC 3.91ms from San Jose, US
3.1.41.237 AS16509 Amazon.com, Inc. 0.12ms from Singapore, SG
154.28.240.205 AS46261 QuickPacket, LLC 0.21ms from Ashburn, US
75.133.79.205 AS20115 Charter Communications LLC 6.93ms from Chicago, US
68.12.81.61 AS22773 Cox Communications Inc. 9.18ms from Dallas, US
175.43.66.173 AS4837 CHINA UNICOM China169 Backbone 7.05ms from Fuzhou, CN
123.157.199.253 AS4837 CHINA UNICOM China169 Backbone 5.77ms from Hangzhou, CN

Traceroute

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

$
traceroute -a -n -q1 -f3 -m7 133.51.223.176
traceroute to 133.51.223.176 (133.51.223.176): 7 hops max, 52 byte packets
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Brno, CZ
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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