AS37917
University of Tsukuba · tsukuba.ac.jp
Japan
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| 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
WHOIS Details
ASHandle: AS37917
OrgID: AS37917
ASName: AS37917
ASNumber: AS37917
RegDate: 0000-00-00
Updated: 0000-00-00
TechHandle: AA00-AAAA
Source: AAAA
Hosted Domains
There are 50 domain names hosted across 34 IP addresses on this ASN.
| IP Address | Domain | Domains on this IP |
|---|---|---|
| 130.158.75.59 | ██████████ | 11 |
| 130.158.69.105 | ██████████ | 3 |
| 130.158.75.33 | ██████████ | 3 |
| 130.158.42.64 | ██████████ | 2 |
| 130.158.137.78 | ██████████ | 2 |
| 130.158.153.10 | ██████████ | 2 |
| 130.158.75.39 | ██████████ | 2 |
| 130.158.70.188 | ██████████ | 2 |
| 130.158.6.121 | █████████ | 2 |
| 130.158.199.11 | ██████████ | 1 |
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 |
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 |
Downstreams
There are no downstreams for this ASN.
Pingable IPs
64 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 130.158.44.62 |
2.41ms from Tokyo,
JP
|
|
| 130.158.71.254 |
2.45ms from Tokyo,
JP
|
|
| 130.158.231.155 |
2.56ms from Tokyo,
JP
|
|
| 130.158.68.254 |
2.43ms from Tokyo,
JP
|
|
| 130.158.172.253 |
2.41ms from Tokyo,
JP
|
|
| 130.158.170.253 |
2.41ms from Tokyo,
JP
|
|
| 130.158.45.253 |
2.42ms from Tokyo,
JP
|
|
| 130.158.109.253 |
2.40ms from Tokyo,
JP
|
|
| 130.158.240.2 |
2.55ms from Tokyo,
JP
|
|
| 163.220.252.65 |
2.45ms from Tokyo,
JP
|
|
| 130.158.41.252 |
2.43ms from Tokyo,
JP
|
|
| 130.158.70.254 |
2.42ms from Tokyo,
JP
|
|
| 130.158.226.252 |
2.42ms from Tokyo,
JP
|
|
| 130.158.39.253 |
2.41ms from Tokyo,
JP
|
|
| 130.158.253.253 |
2.40ms from Tokyo,
JP
|
|
| 130.158.69.126 |
2.40ms from Tokyo,
JP
|
|
| 130.158.30.252 |
2.42ms from Tokyo,
JP
|
|
| 130.158.228.254 |
2.40ms from Tokyo,
JP
|
|
| 130.158.47.254 |
2.41ms from Tokyo,
JP
|
|
| 130.158.251.254 |
2.40ms from Tokyo,
JP
|
|
| 163.220.255.141 |
2.48ms from Tokyo,
JP
|
|
| 130.158.2.254 |
2.43ms from Tokyo,
JP
|
|
| 130.158.245.252 |
2.44ms from Tokyo,
JP
|
|
| 130.158.153.253 |
2.44ms from Tokyo,
JP
|
|
| 130.158.237.252 |
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 |
|---|---|---|
| 62.103.196.141 |
2.36ms from Athens,
GR
|
|
| 80.138.104.45 |
1.97ms from Berlin,
DE
|
|
| 71.13.92.61 |
10.85ms from Chicago,
US
|
|
| 31.50.28.253 |
5.00ms from London,
GB
|
|
| 81.2.165.109 |
2.29ms from London,
GB
|
|
| 187.251.113.61 |
1.78ms from Mexico City,
MX
|
|
| 151.84.208.29 |
2.95ms from Milan,
IT
|
|
| 79.62.57.29 |
4.55ms from Milan,
IT
|
|
| 75.214.125.13 |
10.94ms from New York City,
US
|
|
| 3.91.87.221 |
0.59ms from Reston,
US
|
|
| 71.132.253.61 |
3.62ms from San Antonio,
US
|
|
| 125.187.237.13 |
1.76ms from Seoul,
KR
|
|
| 218.145.8.61 |
4.40ms from Seoul,
KR
|
|
| 75.132.23.77 |
4.56ms from St. Louis,
US
|
|
| 153.211.217.221 |
7.21ms from Tokyo,
JP
|
|
| 69.42.185.141 |
1.37ms from Toronto,
CA
|
|
| 91.92.202.237 |
0.09ms from Zuerich,
CH
|
|
| 117.14.63.13 |
5.29ms from Beijing,
CN
|
|
| 187.121.151.13 |
1.28ms from Brasilia,
BR
|
|
| 34.79.254.205 |
0.13ms from Brussels,
BE
|
|
| 64.132.138.13 |
2.88ms from Charlotte,
US
|
|
| 50.33.134.125 |
11.86ms from Chicago,
US
|
|
| 113.205.68.221 |
6.68ms from Chongqing,
CN
|
|
| 209.205.175.93 |
13.44ms from Dallas,
US
|
|
| 77.7.13.205 |
9.27ms from Frankfurt am Main,
DE
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.
IPinfo ProbeNet
in Bucharest, RO
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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