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
130.158.191.254 AS37917 University of Tsukuba 2.47ms from Tokyo, JP
130.158.225.253 AS37917 University of Tsukuba 2.42ms from Tokyo, JP
130.158.251.253 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.223.254 AS37917 University of Tsukuba 2.82ms from Tokyo, JP
163.220.255.136 AS37917 University of Tsukuba 2.50ms from Tokyo, JP
130.158.150.254 AS37917 University of Tsukuba 2.42ms from Tokyo, JP
130.158.48.251 AS37917 University of Tsukuba 17.68ms from Tokyo, JP
130.158.153.253 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.75.62 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.71.253 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.196.10 AS37917 University of Tsukuba 15.37ms from Tokyo, JP
130.158.45.254 AS37917 University of Tsukuba 2.42ms from Tokyo, JP
130.158.74.61 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.143.253 AS37917 University of Tsukuba 2.40ms from Tokyo, JP
130.158.2.252 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.31.190 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.222.233 AS37917 University of Tsukuba 5.74ms from Tokyo, JP
130.158.39.189 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.239.252 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.41.254 AS37917 University of Tsukuba 2.53ms from Tokyo, JP
130.158.237.252 AS37917 University of Tsukuba 2.42ms from Tokyo, JP
130.158.245.252 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.108.254 AS37917 University of Tsukuba 2.46ms from Tokyo, JP
130.158.172.254 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.110.254 AS37917 University of Tsukuba 2.43ms 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
20.237.6.29 AS8075 Microsoft Corporation 0.44ms from Ashburn, US
172.203.128.189 AS8075 Microsoft Corporation 0.64ms from Ashburn, US
45.53.155.109 AS5650 Frontier Communications of America, Inc. 11.95ms from Chicago, US
108.239.216.189 AS7018 AT&T Enterprises, LLC 2.23ms from Dallas, US
119.114.187.237 AS4837 CHINA UNICOM China169 Backbone 8.91ms from Liaoyang, CN
4.59.87.157 AS3356 Level 3 Parent, LLC 0.35ms from Miami, US
93.117.152.205 AS56550 STEL S.R.L. 17.14ms from Milan, IT
174.112.165.61 AS812 Rogers Communications Canada Inc. 7.01ms from Montreal, CA
43.205.166.253 AS16509 Amazon.com, Inc. 0.16ms from Mumbai, IN
219.127.213.13 AS17676 SoftBank Corp. 9.23ms from Osaka, JP
114.19.78.141 AS2516 KDDI CORPORATION 6.79ms from Osaka, JP
90.49.184.109 AS3215 Orange S.A. 14.09ms from Paris, FR
187.59.7.109 AS18881 TELEFÔNICA BRASIL S.A 5.80ms from Sao Paulo, BR
110.47.249.221 AS18313 LG HelloVision Corp. 1.49ms from Seoul, KR
14.55.204.189 AS4766 Korea Telecom 4.54ms from Seoul, KR
126.46.211.29 AS17676 SoftBank Corp. 13.99ms from Tokyo, JP
126.88.45.13 AS17676 SoftBank Corp. 2.50ms from Tokyo, JP
211.15.204.77 AS2516 KDDI CORPORATION 1.92ms from Tokyo, JP
71.113.0.13 AS701 Verizon Business 18.03ms from Ashburn, US
97.132.28.45 AS6167 Verizon Business 16.62ms from Atlanta, US
181.53.32.221 AS14080 Telmex Colombia S.A. 2.09ms from Bogota, CO
58.165.62.77 AS1221 Telstra Limited 5.24ms from Brisbane, AU
201.158.10.253 AS61936 VIATEC TELECOMUNICAÇÕES LTDA 4.55ms from Chapeco, BR
117.97.143.45 AS24560 Bharti Airtel Ltd., Telemedia Services 10.19ms from Chennai, IN
108.198.126.205 AS7018 AT&T Enterprises, LLC 18.27ms from Chicago, US

Traceroute

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

$
traceroute -a -n -q1 -f2 -m7 133.51.63.190
traceroute to 133.51.63.190 (133.51.63.190): 7 hops max, 52 byte packets
2 [AS6718] 128.0.34.101 4.399 ms
3 *
4 [AS6939] 184.105.65.45 13.271 ms
5 *
6 *
7 *
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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