AS number 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 50
Number of IPv4 132,096
Number of IPv6 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 50 domain names hosted across 35 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
130.158.6.121 ██████████ 2
130.158.153.10 ██████████ 2
130.158.42.64 ██████████ 2
130.158.137.78 ██████████ 2
130.158.70.188 ██████████ 2
130.158.170.45 ██████████ 1
130.158.70.158 ██████████ 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 ASN Database Download

Pingable IPs

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

IP Address ASN Details
130.158.227.124 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.226.254 AS37917 University of Tsukuba 2.42ms from Tokyo, JP
163.220.253.66 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.251.254 AS37917 University of Tsukuba 2.42ms from Tokyo, JP
130.158.44.252 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.253.253 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.92.250 AS37917 University of Tsukuba 2.91ms from Tokyo, JP
130.158.29.62 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.170.253 AS37917 University of Tsukuba 2.42ms from Tokyo, JP
130.158.171.254 AS37917 University of Tsukuba 2.42ms from Tokyo, JP
130.158.71.253 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.69.62 AS37917 University of Tsukuba 2.42ms from Tokyo, JP
130.158.109.254 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.108.254 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.13.254 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.245.254 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.150.254 AS37917 University of Tsukuba 2.39ms from Tokyo, JP
130.158.222.232 AS37917 University of Tsukuba 4.97ms from Tokyo, JP
130.158.30.254 AS37917 University of Tsukuba 2.42ms from Tokyo, JP
130.158.74.61 AS37917 University of Tsukuba 2.42ms from Tokyo, JP
130.158.239.252 AS37917 University of Tsukuba 2.42ms from Tokyo, JP
130.158.223.254 AS37917 University of Tsukuba 2.75ms from Tokyo, JP
130.158.231.164 AS37917 University of Tsukuba 2.58ms from Tokyo, JP
130.158.2.252 AS37917 University of Tsukuba 2.46ms from Tokyo, JP
130.158.172.253 AS37917 University of Tsukuba 2.42ms 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
206.54.165.237 AS35415 Webzilla B.V. 0.27ms from Amsterdam, NL
61.7.230.109 AS9931 The Communication Authoity of Thailand, CAT 14.06ms from Bangkok, TH
103.248.123.253 AS58906 Shivansh Infotech pvt Ltd 5.89ms from Delhi, IN
200.222.100.125 AS7738 V tal 0.50ms from Fortaleza, BR
125.59.36.77 AS9908 HK Cable TV Ltd 1.85ms from Hong Kong, HK
208.69.253.237 AS15101 Central 1 Credit Union 2.88ms from Kelowna, CA
92.63.20.157 AS3212 Telemach Slovenija d.o.o. 2.98ms from Ljubljana, SI
196.46.191.29 AS59895 Binary Racks Limited 0.20ms from London, GB
87.219.186.125 AS12479 Orange Espagne SA 7.92ms from Madrid, ES
206.81.11.189 AS14061 DigitalOcean, LLC 0.20ms from New York City, US
220.102.22.93 AS2518 BIGLOBE Inc. 4.16ms from Osaka, JP
54.158.170.45 AS14618 Amazon.com, Inc. 0.23ms from Reston, US
200.205.233.189 AS10429 TELEFÔNICA BRASIL S.A 0.47ms from Sao Paulo, BR
4.14.240.109 AS3356 Level 3 Parent, LLC 0.26ms from Seattle, US
203.223.111.125 AS18313 LG HelloVision Corp. 1.87ms from Seoul, KR
114.29.18.141 AS38669 LG HelloVision Corp. 8.22ms from Seoul, KR
115.1.205.61 AS4766 Korea Telecom 1.74ms from Seoul, KR
163.213.244.77 AS4766 Korea Telecom 5.55ms from Seoul, KR
220.92.43.77 AS4766 Korea Telecom 6.66ms from Seoul, KR
52.62.232.61 AS16509 Amazon.com, Inc. 0.12ms from Sydney, AU
124.119.56.13 AS4134 CHINANET-BACKBONE 3.70ms from UEruemqi, CN
194.180.45.13 AS52106 GALATEA - Dominik Budzowski 2.46ms from Warsaw, PL
78.108.67.29 AS43148 MTS PJSC 6.97ms from Yekaterinburg, RU
78.5.146.13 AS8968 BT Italia S.p.A. 8.27ms from Arezzo, IT
91.138.184.189 AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA 0.98ms from Athens, GR

Traceroute

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

$
traceroute -a -n -q1 -m5 130.158.141.40
traceroute to 130.158.141.40 (130.158.141.40): 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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