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
130.158.75.33 ██████████ 3
130.158.69.105 ██████████ 3
130.158.75.35 ██████████ 2
130.158.137.78 ██████████ 2
130.158.70.188 ██████████ 2
130.158.6.121 █████████ 2
130.158.75.40 ██████████ 2
130.158.42.64 ██████████ 2
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

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

IP Address ASN Details
130.158.74.61 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.45.252 AS37917 University of Tsukuba 2.50ms from Tokyo, JP
130.158.170.252 AS37917 University of Tsukuba 2.50ms from Tokyo, JP
130.158.243.207 AS37917 University of Tsukuba 2.55ms from Tokyo, JP
130.158.237.253 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.152.253 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.39.190 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.229.254 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.70.252 AS37917 University of Tsukuba 2.47ms from Tokyo, JP
130.158.222.2 AS37917 University of Tsukuba 11.91ms from Tokyo, JP
130.158.223.254 AS37917 University of Tsukuba 2.76ms from Tokyo, JP
130.158.42.254 AS37917 University of Tsukuba 2.46ms from Tokyo, JP
130.158.43.254 AS37917 University of Tsukuba 2.47ms from Tokyo, JP
130.158.71.254 AS37917 University of Tsukuba 2.52ms from Tokyo, JP
130.158.233.253 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.143.60 AS37917 University of Tsukuba 2.48ms from Tokyo, JP
130.158.239.252 AS37917 University of Tsukuba 2.50ms from Tokyo, JP
130.158.38.253 AS37917 University of Tsukuba 2.46ms from Tokyo, JP
130.158.234.43 AS37917 University of Tsukuba 2.82ms from Tokyo, JP
130.158.30.253 AS37917 University of Tsukuba 2.49ms from Tokyo, JP
130.158.108.254 AS37917 University of Tsukuba 2.47ms from Tokyo, JP
130.158.228.253 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.196.253 AS37917 University of Tsukuba 15.42ms from Tokyo, JP
130.158.226.254 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.241.1 AS37917 University of Tsukuba 2.63ms 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
91.40.155.141 AS3320 Deutsche Telekom AG 4.36ms from Berlin, DE
73.238.209.77 AS7922 Comcast Cable Communications, LLC 4.04ms from Boston, US
162.33.24.93 AS36352 HostPapa 0.14ms from Buffalo, US
23.62.73.29 AS16625 Akamai Technologies, Inc. 0.26ms from Chicago, US
91.63.244.29 AS3320 Deutsche Telekom AG 3.63ms from Duesseldorf, DE
147.47.105.93 AS9488 Seoul National University 1.21ms from Incheon, KR
108.238.238.93 AS7018 AT&T Enterprises, LLC 17.07ms from Kansas City, US
34.125.197.141 AS396982 Google LLC 0.14ms from Las Vegas, US
188.77.175.237 AS12479 Orange Espagne SA 11.31ms from Madrid, ES
114.224.20.109 AS4134 CHINANET-BACKBONE 4.84ms from Nanjing, CN
185.230.115.237 AS204592 Cosmos Wireless Ltd 2.55ms from Nicosia, CY
187.89.100.221 AS26599 TELEFÔNICA BRASIL S.A 2.69ms from Osasco, BR
3.115.37.157 AS16509 Amazon.com, Inc. 0.22ms from Tokyo, JP
95.51.0.61 AS5617 Orange Polska Spolka Akcyjna 6.49ms from Warsaw, PL
216.135.7.109 AS7029 Windstream Communications LLC 10.95ms from Chicago, US
4.210.103.125 AS8075 Microsoft Corporation 0.14ms from Dublin, IE
118.31.96.237 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 4.24ms from Hangzhou, CN
59.152.237.29 AS9381 HKBN Enterprise Solutions HK Limited 0.67ms from Hong Kong, HK
13.135.143.141 AS16509 Amazon.com, Inc. 0.18ms from London, GB
79.148.189.141 AS3352 TELEFONICA DE ESPANA S.A.U. 1.49ms from Madrid, ES
96.85.174.77 AS7922 Comcast Cable Communications, LLC 5.27ms from Miami, US
5.137.247.173 AS12389 PJSC Rostelecom 0.75ms from Novosibirsk, RU
114.19.78.141 AS2516 KDDI CORPORATION 6.61ms from Osaka, JP
191.255.226.125 AS27699 TELEFÔNICA BRASIL S.A 1.38ms from Osasco, BR
78.44.122.253 AS16019 Vodafone Czech Republic a.s. 0.57ms from Prague, CZ

Traceroute

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

$
traceroute -a -n -q1 -m4 130.158.25.182
traceroute to 130.158.25.182 (130.158.25.182): 4 hops max, 52 byte packets
2 *
3 *
4 *
Measurement taken from IPinfo ProbeNet in Amsterdam, NL
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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