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
130.158.69.105 ██████████ 3
130.158.75.33 ██████████ 3
130.158.6.121 ██████████ 2
130.158.42.64 ██████████ 2
130.158.70.188 ██████████ 2
130.158.137.78 ██████████ 2
130.158.75.48 ██████████ 2
130.158.143.220 ██████████ 1
130.158.43.199 ██████████ 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

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

IP Address ASN Details
130.158.68.254 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.69.62 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.250.253 AS37917 University of Tsukuba 2.47ms from Tokyo, JP
130.158.172.253 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
163.220.255.136 AS37917 University of Tsukuba 2.50ms from Tokyo, JP
130.158.239.252 AS37917 University of Tsukuba 2.46ms from Tokyo, JP
130.158.74.61 AS37917 University of Tsukuba 2.49ms from Tokyo, JP
130.158.245.254 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.38.254 AS37917 University of Tsukuba 2.46ms from Tokyo, JP
130.158.46.253 AS37917 University of Tsukuba 2.46ms from Tokyo, JP
130.158.47.188 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.29.190 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.196.15 AS37917 University of Tsukuba 15.40ms from Tokyo, JP
130.158.175.254 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.109.253 AS37917 University of Tsukuba 2.42ms from Tokyo, JP
130.158.229.253 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.31.189 AS37917 University of Tsukuba 2.49ms from Tokyo, JP
130.158.191.253 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.137.254 AS37917 University of Tsukuba 2.42ms from Tokyo, JP
130.158.230.250 AS37917 University of Tsukuba 2.63ms from Tokyo, JP
130.158.48.251 AS37917 University of Tsukuba 12.82ms from Tokyo, JP
130.158.241.3 AS37917 University of Tsukuba 2.57ms from Tokyo, JP
130.158.43.253 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.222.195 AS37917 University of Tsukuba 5.85ms from Tokyo, JP
130.158.150.254 AS37917 University of Tsukuba 2.40ms 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
195.250.65.157 AS49800 GNC-Alfa CJSC 0.44ms from Abovyan, AM
52.174.75.221 AS8075 Microsoft Corporation 0.25ms from Amsterdam, NL
192.80.154.141 AS46293 Midwest Energy & Communications 7.39ms from Chicago, US
14.225.122.61 AS135905 VIETNAM POSTS AND TELECOMMUNICATIONS GROUP 0.33ms from Da Nang, VN
188.195.6.253 AS3209 Vodafone GmbH 1.43ms from Frankfurt am Main, DE
217.66.26.13 AS29194 MTS PJSC 4.90ms from Kazan, RU
15.156.179.237 AS16509 Amazon.com, Inc. 0.16ms from Montreal, CA
103.83.137.109 AS135839 Optical Broadband Communication Pvt. Ltd 12.62ms from Mumbai, IN
62.231.201.253 AS28885 OmanTel NAP 3.74ms from Muscat, OM
78.44.122.253 AS16019 Vodafone Czech Republic a.s. 0.57ms from Prague, CZ
69.42.185.141 AS21992 Ontario Health 1.35ms from Toronto, CA
70.50.218.189 AS577 Bell Canada 1.57ms from Toronto, CA
174.169.143.141 AS7922 Comcast Cable Communications, LLC 8.76ms from Boston, US
201.158.10.253 AS61936 VIATEC TELECOMUNICAÇÕES LTDA 4.57ms from Chapeco, BR
139.186.215.157 AS45090 Shenzhen Tencent Computer Systems Company Limited 0.26ms from Chongqing, CN
73.34.245.205 AS7922 Comcast Cable Communications, LLC 5.13ms from Denver, US
93.93.242.29 AS134548 DXTL Tseung Kwan O Service 0.76ms from Hong Kong, HK
59.152.237.29 AS9381 HKBN Enterprise Solutions HK Limited 0.66ms from Hong Kong, HK
90.38.148.221 AS3215 Orange S.A. 3.05ms from Lyon, FR
90.119.115.253 AS3215 Orange S.A. 3.39ms from Marseille, FR
31.188.208.205 AS24608 WIND TRE S.P.A. 4.97ms from Milan, IT
66.11.42.13 AS21548 Beanfield Technologies Inc. 1.09ms from Montreal, CA
84.172.76.125 AS3320 Deutsche Telekom AG 4.28ms from Nuernberg, DE
79.250.132.61 AS3320 Deutsche Telekom AG 1.88ms from Nuernberg, DE
153.164.101.109 AS4713 NTT DOCOMO BUSINESS,Inc. 9.39ms from Osaka, JP

Traceroute

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

$
traceroute -a -n -q1 -f3 -m11 130.158.121.135
traceroute to 130.158.121.135 (130.158.121.135): 11 hops max, 52 byte packets
3 [AS38158] 121.100.7.178 30.233 ms
4 [AS9583] 103.231.152.62 31.437 ms
5 *
6 *
8 [AS10010] 103.41.60.166 96.959 ms
9 *
10 *
11 *
Measurement taken from IPinfo ProbeNet in Denpasar, ID
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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