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
130.158.69.105 ██████████ 3
130.158.75.33 ██████████ 3
130.158.6.121 ██████████ 2
130.158.70.188 ██████████ 2
130.158.75.35 ██████████ 2
130.158.75.40 ██████████ 2
130.158.137.78 ██████████ 2
130.158.42.64 ██████████ 2
133.51.2.252 ██████████ 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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Pingable IPs

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

IP Address ASN Details
130.158.1.126 AS37917 University of Tsukuba 2.49ms from Tokyo, JP
130.158.223.254 AS37917 University of Tsukuba 2.79ms from Tokyo, JP
130.158.43.254 AS37917 University of Tsukuba 2.48ms from Tokyo, JP
130.158.39.253 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.71.254 AS37917 University of Tsukuba 2.50ms from Tokyo, JP
130.158.70.253 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.74.61 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.225.252 AS37917 University of Tsukuba 2.48ms from Tokyo, JP
130.158.224.126 AS37917 University of Tsukuba 2.48ms from Tokyo, JP
130.158.170.252 AS37917 University of Tsukuba 2.52ms from Tokyo, JP
130.158.229.253 AS37917 University of Tsukuba 2.47ms from Tokyo, JP
130.158.109.254 AS37917 University of Tsukuba 2.43ms from Tokyo, JP
130.158.251.253 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.155.123 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.31.190 AS37917 University of Tsukuba 2.46ms from Tokyo, JP
130.158.110.253 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.41.253 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.253.253 AS37917 University of Tsukuba 2.46ms from Tokyo, JP
130.158.42.254 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.137.254 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.236.225 AS37917 University of Tsukuba 2.77ms from Tokyo, JP
130.158.231.175 AS37917 University of Tsukuba 2.64ms from Tokyo, JP
130.158.250.254 AS37917 University of Tsukuba 2.44ms from Tokyo, JP
130.158.228.252 AS37917 University of Tsukuba 2.45ms from Tokyo, JP
130.158.44.62 AS37917 University of Tsukuba 2.47ms 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
223.70.82.237 AS56048 China Mobile Communicaitons Corporation 1.60ms from Beijing, CN
197.60.16.109 AS8452 TE-AS 4.67ms from Cairo, EG
47.35.97.173 AS20115 Charter Communications LLC 12.78ms from Chicago, US
67.184.178.253 AS7922 Comcast Cable Communications, LLC 4.24ms from Chicago, US
66.163.114.109 AS63023 GTHost 0.11ms from Denver, US
113.183.232.29 AS45899 VNPT Corp 2.47ms from Ho Chi Minh City, VN
180.222.117.93 AS18293 Internet content provider 0.21ms from Hong Kong, HK
137.189.128.253 AS3661 The Chinese University of Hong Kong 1.96ms from Hong Kong, HK
122.47.185.13 AS17858 LG POWERCOMM 2.08ms from Incheon, KR
83.234.92.13 AS20485 Joint Stock Company TransTeleCom 12.41ms from Khabarovsk, RU
44.204.82.77 AS14618 Amazon.com, Inc. 0.45ms from Reston, US
58.65.76.93 AS9694 Seokyung Cable Television Co.. Ltd. 7.73ms from Seoul, KR
180.169.91.157 AS4812 China Telecom (Group) 3.38ms from Shanghai, CN
126.88.45.13 AS17676 SoftBank Corp. 2.46ms from Tokyo, JP
50.227.118.237 AS7922 Comcast Cable Communications, LLC 1.99ms from Atlanta, US
212.132.106.237 AS8560 IONOS SE 0.61ms from Berlin, DE
216.169.14.93 AS12119 ITV-3 4.72ms from Chicago, US
71.205.158.253 AS7922 Comcast Cable Communications, LLC 2.36ms from Denver, US
62.153.169.253 AS3320 Deutsche Telekom AG 1.56ms from Frankfurt am Main, DE
188.191.249.189 AS9009 M247 Europe SRL 0.27ms from Frankfurt am Main, DE
217.209.175.221 AS3301 Telia Company AB 6.62ms from Goeteborg, SE
45.48.107.77 AS20001 Charter Communications Inc 9.34ms from Los Angeles, US
193.254.35.125 AS198760 Quattre Internet SL 6.44ms from Madrid, ES
77.69.157.109 AS5416 BEYON B.S.C. 1.01ms from Manama, BH
223.112.229.93 AS56046 China Mobile communications corporation 3.10ms from Nanjing, CN

Traceroute

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

$
traceroute -a -n -q1 -m8 130.158.181.51
traceroute to 130.158.181.51 (130.158.181.51): 8 hops max, 52 byte packets
1 [AS15169] 66.249.95.81 233.361 ms
2 [AS15169] 216.239.59.32 233.688 ms
3 *
4 [AS2907] 150.99.8.44 242.187 ms
5 [AS2907] 150.99.189.194 242.572 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Berlin, DE
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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