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
130.158.250.253 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.48.251 AS37917 University of Tsukuba 17.27ms from Tokyo, JP
130.158.228.124 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.225.253 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.150.254 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.13.253 AS37917 University of Tsukuba 2.42ms from Tokyo, JP
130.158.175.253 AS37917 University of Tsukuba 2.42ms from Tokyo, JP
130.158.233.253 AS37917 University of Tsukuba 2.42ms from Tokyo, JP
130.158.68.253 AS37917 University of Tsukuba 2.41ms from Tokyo, JP
163.220.252.2 AS37917 University of Tsukuba 2.48ms from Tokyo, JP
130.158.152.254 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.223.254 AS37917 University of Tsukuba 2.83ms from Tokyo, JP
130.158.43.252 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.253.253 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.240.3 AS37917 University of Tsukuba 2.54ms from Tokyo, JP
130.158.196.10 AS37917 University of Tsukuba 15.49ms from Tokyo, JP
130.158.75.253 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.247.254 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.198.252 AS37917 University of Tsukuba 23.41ms from Tokyo, JP
130.158.245.252 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.74.62 AS37917 University of Tsukuba 2.41ms from Tokyo, JP
130.158.45.252 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.227.254 AS37917 University of Tsukuba 2.75ms from Tokyo, JP
130.158.109.253 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.222.192 AS37917 University of Tsukuba 4.14ms 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
45.61.99.157 AS46516 HostRoyale LLC 0.57ms from Ashburn, US
190.110.226.61 AS28103 TECNOLOGIA EN ELECTRONICA E INFORMATICA SOCIEDAD ANONIMA (T.E.I.S.A) 0.08ms from Asuncion, PY
44.250.181.77 AS16509 Amazon.com, Inc. 0.50ms from Boardman, US
200.222.100.125 AS7738 V tal 0.49ms from Fortaleza, BR
120.55.224.173 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 4.39ms from Hangzhou, CN
42.184.180.141 AS4134 CHINANET-BACKBONE 5.06ms from Harbin, CN
42.200.107.253 AS4760 HKT Limited 1.12ms from Hong Kong, HK
210.209.99.189 AS9269 Hong Kong Broadband Network Ltd. 1.15ms from Hong Kong, HK
196.39.108.29 AS20011 Dimension Data 1.72ms from Johannesburg, ZA
176.181.22.253 AS5410 Bouygues Telecom SA 2.23ms from Marseille, FR
173.30.13.141 AS30036 Mediacom Communications Corp 8.04ms from Minneapolis, US
106.180.220.221 AS2516 KDDI CORPORATION 0.81ms from Osaka, JP
189.222.19.237 AS8151 UNINET 15.63ms from Phoenix, US
66.98.35.173 AS6400 Compañía Dominicana de Teléfonos S. A. 2.86ms from Santo Domingo, DO
3.113.158.253 AS16509 Amazon.com, Inc. 0.19ms from Tokyo, JP
61.90.193.93 AS7470 TRUE INTERNET Co.,Ltd. 1.97ms from Bangkok, TH
190.7.109.221 AS27975 SYNAPSIS COLOMBIA SAS 0.69ms from Bogota, CO
74.221.79.253 AS29979 Pioneer Broadband 10.36ms from Boston, US
58.165.62.77 AS1221 Telstra Limited 6.16ms from Brisbane, AU
110.76.13.93 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 6.51ms from Chengdu, CN
216.135.7.109 AS7029 Windstream Communications LLC 11.00ms from Chicago, US
175.43.66.173 AS4837 CHINA UNICOM China169 Backbone 7.05ms from Fuzhou, CN
99.106.26.61 AS7018 AT&T Enterprises, LLC 4.50ms from Miami, US
151.30.164.237 AS1267 WIND TRE S.P.A. 2.36ms from Milan, IT
69.125.70.93 AS6128 Cablevision Systems Corp. 7.71ms from New York City, US

Traceroute

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

$
traceroute -a -n -q1 -m6 130.158.236.123
traceroute to 130.158.236.123 (130.158.236.123): 6 hops max, 52 byte packets
2 *
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Cayenne, GF
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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