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 18 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
130.158.137.78 ██████████ 2
130.158.42.64 ██████████ 2
130.158.6.121 █████████ 2
130.158.70.188 ██████████ 2
133.51.14.117 ██████████ 1
130.158.199.11 ██████████ 1
130.158.75.38 ██████████ 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

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

IP Address ASN Details
130.158.13.253 AS37917 University of Tsukuba 2.48ms from Tokyo, JP
130.158.137.253 AS37917 University of Tsukuba 2.48ms from Tokyo, JP
163.220.252.1 AS37917 University of Tsukuba 2.53ms from Tokyo, JP
130.158.2.252 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.30.253 AS37917 University of Tsukuba 2.47ms from Tokyo, JP
130.158.228.125 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.38.252 AS37917 University of Tsukuba 2.47ms from Tokyo, JP
130.158.223.254 AS37917 University of Tsukuba 2.71ms from Tokyo, JP
130.158.241.20 AS37917 University of Tsukuba 2.65ms from Tokyo, JP
130.158.240.1 AS37917 University of Tsukuba 2.58ms from Tokyo, JP
130.158.251.252 AS37917 University of Tsukuba 2.46ms from Tokyo, JP
130.158.42.253 AS37917 University of Tsukuba 2.42ms from Tokyo, JP
130.158.92.250 AS37917 University of Tsukuba 2.93ms from Tokyo, JP
130.158.143.253 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.39.252 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.75.61 AS37917 University of Tsukuba 2.41ms from Tokyo, JP
130.158.46.254 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.170.253 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.247.254 AS37917 University of Tsukuba 2.46ms from Tokyo, JP
130.158.110.253 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
163.220.253.72 AS37917 University of Tsukuba 2.46ms from Tokyo, JP
130.158.225.252 AS37917 University of Tsukuba 2.47ms from Tokyo, JP
130.158.48.251 AS37917 University of Tsukuba 18.45ms from Tokyo, JP
130.158.243.214 AS37917 University of Tsukuba 2.55ms from Tokyo, JP
130.158.71.254 AS37917 University of Tsukuba 2.48ms 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
81.186.170.205 AS8248 Computer Technology Institute and Press Diophantus 15.57ms from Athens, GR
75.102.203.77 AS20130 Depaul University 2.53ms from Chicago, US
166.78.32.61 AS33070 Rackspace Hosting 0.93ms from Dallas, US
174.16.209.253 AS209 CenturyLink Communications, LLC 1.91ms from Denver, US
113.188.163.13 AS45899 VNPT Corp 3.82ms from Ho Chi Minh City, VN
36.4.62.125 AS4134 CHINANET-BACKBONE 8.86ms from Huai'an, CN
85.198.150.29 AS6702 Science Production Company "Trifle" Ltd. 7.07ms from Kyiv, UA
84.64.224.125 AS5378 Vodafone Limited 3.75ms from Manchester, GB
101.44.177.205 AS136907 HUAWEI CLOUDS 2.88ms from Mexico City, MX
151.84.208.29 AS1267 WIND TRE S.P.A. 2.81ms from Milan, IT
184.95.250.253 AS22652 Videotron Ltee 0.43ms from Montreal, CA
177.94.40.61 AS27699 TELEFÔNICA BRASIL S.A 1.47ms from Osasco, BR
3.95.157.157 AS14618 Amazon.com, Inc. 0.42ms from Reston, US
112.162.128.125 AS4766 Korea Telecom 6.46ms from Seoul, KR
35.213.102.77 AS19527 Google LLC 0.16ms from Tokyo, JP
223.132.148.109 AS2527 Sony Network Communications Inc. 8.97ms from Tokyo, JP
109.227.57.109 AS12810 A1 Hrvatska d.o.o. 6.71ms from Zagreb, HR
131.96.160.205 AS10631 Georgia State University 0.22ms from Atlanta, US
43.209.41.109 AS16509 Amazon.com, Inc. 1.58ms from Bangkok, TH
84.145.35.93 AS3320 Deutsche Telekom AG 4.18ms from Berlin, DE
54.70.237.61 AS16509 Amazon.com, Inc. 0.17ms from Boardman, US
92.114.206.205 AS8926 Moldtelecom SA 4.48ms from Chisinau, MD
180.222.117.93 AS18293 Internet content provider 0.22ms from Hong Kong, HK
98.197.39.173 AS7922 Comcast Cable Communications, LLC 9.27ms from Houston, US
173.199.187.13 AS32244 Liquid Web, L.L.C 0.20ms from Lansing, US

Traceroute

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

$
traceroute -a -n -q1 -m5 133.51.80.224
traceroute to 133.51.80.224 (133.51.80.224): 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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