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

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

IP Address ASN Details
130.158.70.253 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.196.19 AS37917 University of Tsukuba 15.38ms from Tokyo, JP
130.158.137.254 AS37917 University of Tsukuba 2.47ms from Tokyo, JP
130.158.71.254 AS37917 University of Tsukuba 2.50ms from Tokyo, JP
130.158.41.253 AS37917 University of Tsukuba 2.47ms from Tokyo, JP
130.158.43.254 AS37917 University of Tsukuba 2.46ms from Tokyo, JP
130.158.237.253 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.30.252 AS37917 University of Tsukuba 2.48ms from Tokyo, JP
130.158.239.253 AS37917 University of Tsukuba 2.50ms from Tokyo, JP
130.158.39.190 AS37917 University of Tsukuba 2.46ms from Tokyo, JP
130.158.47.253 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.233.253 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.234.43 AS37917 University of Tsukuba 2.73ms from Tokyo, JP
163.220.253.76 AS37917 University of Tsukuba 2.46ms from Tokyo, JP
130.158.15.126 AS37917 University of Tsukuba 2.48ms from Tokyo, JP
130.158.224.126 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.226.252 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.108.252 AS37917 University of Tsukuba 2.48ms from Tokyo, JP
130.158.42.254 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
163.220.252.70 AS37917 University of Tsukuba 2.48ms from Tokyo, JP
130.158.48.252 AS37917 University of Tsukuba 12.93ms from Tokyo, JP
130.158.92.37 AS37917 University of Tsukuba 2.92ms from Tokyo, JP
130.158.245.254 AS37917 University of Tsukuba 2.50ms from Tokyo, JP
130.158.223.254 AS37917 University of Tsukuba 2.73ms from Tokyo, JP
130.158.153.252 AS37917 University of Tsukuba 2.46ms 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
2.49.243.13 AS5384 Emirates Internet 3.62ms from Al Fujairah City, AE
74.221.79.253 AS29979 Pioneer Broadband 10.35ms from Boston, US
200.71.162.189 AS6306 TELEFONICA VENEZOLANA, C.A. 1.30ms from Caracas, VE
90.247.199.141 AS5378 Vodafone Limited 4.94ms from London, GB
153.164.23.77 AS4713 NTT DOCOMO BUSINESS,Inc. 5.28ms from Osaka, JP
88.113.223.253 AS719 Elisa Oyj 0.77ms from Oulu, FI
90.115.202.125 AS3215 Orange S.A. 1.78ms from Paris, FR
3.228.93.253 AS14618 Amazon.com, Inc. 0.19ms from Reston, US
181.189.21.141 AS272031 NETENMICASA SpA 1.82ms from Santiago, CL
179.124.194.125 AS262609 CL9 Tecnologias Ltda. 0.28ms from Sao Paulo, BR
72.165.58.77 AS209 CenturyLink Communications, LLC 0.65ms from Seattle, US
116.122.21.93 AS9318 SK Broadband Co Ltd 3.87ms from Seoul, KR
1.158.62.141 AS1221 Telstra Limited 5.23ms from Sydney, AU
14.134.97.237 AS4134 CHINANET-BACKBONE 6.88ms from Zhongwei, CN
94.56.115.157 AS5384 Emirates Internet 2.80ms from Al Fujairah City, AE
105.106.52.109 AS36947 Telecom Algeria 14.40ms from Algiers, DZ
134.166.7.205 AS668 United States Department of Defense (DoD) 0.62ms from Atlanta, US
129.128.72.13 AS3359 University of Alberta 5.42ms from Calgary, CA
176.100.133.253 AS209372 WS Telecom Inc 0.11ms from Denver, US
211.204.140.157 AS9318 SK Broadband Co Ltd 1.67ms from Incheon, KR
46.164.31.141 AS21283 A1 Slovenija telekomunikacijske storitve,d.d. 0.98ms from Ljubljana, SI
189.139.56.253 AS8151 UNINET 1.70ms from Mexico City, MX
54.236.6.221 AS14618 Amazon.com, Inc. 0.42ms from Reston, US
60.116.88.253 AS17676 SoftBank Corp. 3.25ms from Tokyo, JP
93.126.192.141 AS31126 SODETEL S.A.L. 13.62ms from Tripoli, LB

Traceroute

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

$
traceroute -a -n -q1 -m5 130.158.213.145
traceroute to 130.158.213.145 (130.158.213.145): 5 hops max, 52 byte packets
3 *
4 *
5 *
Measurement taken from IPinfo ProbeNet in Asuncion, PY
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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