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 35 IP addresses on this ASN.
| IP Address | Domain | Domains on this IP |
|---|---|---|
| 130.158.75.59 | ██████████ | 11 |
| 130.158.75.33 | ██████████ | 3 |
| 130.158.69.105 | ██████████ | 3 |
| 130.158.137.78 | ██████████ | 2 |
| 130.158.70.188 | ██████████ | 2 |
| 130.158.6.121 | ██████████ | 2 |
| 130.158.153.10 | ██████████ | 2 |
| 130.158.42.64 | ██████████ | 2 |
| 130.158.75.35 | ██████████ | 1 |
| 130.158.78.67 | ██████████ | 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
65 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
|
|
| 130.158.46.253 |
2.44ms from Tokyo,
JP
|
|
| 130.158.42.254 |
2.43ms from Tokyo,
JP
|
|
| 130.158.239.254 |
2.42ms from Tokyo,
JP
|
|
| 130.158.153.61 |
2.41ms from Tokyo,
JP
|
|
| 130.158.223.254 |
2.77ms from Tokyo,
JP
|
|
| 130.158.245.254 |
2.43ms from Tokyo,
JP
|
|
| 130.158.31.190 |
2.42ms from Tokyo,
JP
|
|
| 130.158.170.253 |
2.41ms from Tokyo,
JP
|
|
| 130.158.172.254 |
2.43ms from Tokyo,
JP
|
|
| 130.158.230.108 |
2.73ms from Tokyo,
JP
|
|
| 130.158.45.252 |
2.40ms from Tokyo,
JP
|
|
| 130.158.155.126 |
2.43ms from Tokyo,
JP
|
|
| 130.158.38.252 |
2.43ms from Tokyo,
JP
|
|
| 163.220.253.82 |
2.43ms from Tokyo,
JP
|
|
| 130.158.109.253 |
2.43ms from Tokyo,
JP
|
|
| 130.158.137.254 |
2.44ms from Tokyo,
JP
|
|
| 130.158.191.253 |
2.41ms from Tokyo,
JP
|
|
| 130.158.69.190 |
2.41ms from Tokyo,
JP
|
|
| 130.158.108.254 |
2.43ms from Tokyo,
JP
|
|
| 130.158.53.32 |
2.60ms from Tokyo,
JP
|
|
| 130.158.226.252 |
2.44ms from Tokyo,
JP
|
|
| 130.158.225.253 |
2.47ms from Tokyo,
JP
|
|
| 130.158.47.189 |
2.40ms from Tokyo,
JP
|
|
| 130.158.75.28 |
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 |
|---|---|---|
| 2.239.40.141 |
12.92ms from Arezzo,
IT
|
|
| 50.227.118.237 |
1.93ms from Atlanta,
US
|
|
| 125.238.110.189 |
13.85ms from Auckland,
NZ
|
|
| 84.22.38.253 |
8.72ms from Belgrade,
RS
|
|
| 177.203.26.221 |
4.25ms from Brasilia,
BR
|
|
| 86.122.124.205 |
4.03ms from Bucharest,
RO
|
|
| 67.176.0.109 |
5.41ms from Denver,
US
|
|
| 205.193.156.253 |
5.10ms from Montreal,
CA
|
|
| 218.204.21.109 |
1.94ms from Nanning,
CN
|
|
| 90.50.45.157 |
17.13ms from Paris,
FR
|
|
| 189.231.215.237 |
15.07ms from Phoenix,
US
|
|
| 100.22.17.173 |
4.51ms from Portland,
US
|
|
| 201.57.46.173 |
5.89ms from Rio de Janeiro,
BR
|
|
| 50.125.137.45 |
1.21ms from Seattle,
US
|
|
| 184.70.10.93 |
3.80ms from Seattle,
US
|
|
| 27.236.221.13 |
9.02ms from Seoul,
KR
|
|
| 175.114.171.237 |
1.55ms from Seoul,
KR
|
|
| 126.216.128.157 |
3.05ms from Tokyo,
JP
|
|
| 60.156.122.109 |
3.28ms from Tokyo,
JP
|
|
| 38.172.201.61 |
2.73ms from Varna,
BG
|
|
| 93.157.69.13 |
5.41ms from Warsaw,
PL
|
|
| 95.51.0.61 |
6.31ms from Warsaw,
PL
|
|
| 96.109.124.13 |
8.37ms from Denver,
US
|
|
| 82.48.236.61 |
4.74ms from Milan,
IT
|
|
| 78.44.122.253 |
0.54ms from Prague,
CZ
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.
IPinfo ProbeNet
in Ashburn, US
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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