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 |
|---|---|---|
| 130.158.245.252 |
2.44ms from Tokyo,
JP
|
|
| 130.158.230.101 |
2.58ms from Tokyo,
JP
|
|
| 163.220.253.72 |
2.41ms from Tokyo,
JP
|
|
| 130.158.43.254 |
2.44ms from Tokyo,
JP
|
|
| 130.158.240.2 |
2.55ms from Tokyo,
JP
|
|
| 130.158.152.252 |
2.42ms from Tokyo,
JP
|
|
| 130.158.228.254 |
2.40ms from Tokyo,
JP
|
|
| 130.158.143.62 |
2.41ms from Tokyo,
JP
|
|
| 130.158.247.253 |
2.42ms from Tokyo,
JP
|
|
| 130.158.44.62 |
2.41ms from Tokyo,
JP
|
|
| 130.158.70.254 |
2.42ms from Tokyo,
JP
|
|
| 130.158.172.253 |
2.41ms from Tokyo,
JP
|
|
| 130.158.223.244 |
2.69ms from Tokyo,
JP
|
|
| 130.158.231.155 |
2.56ms from Tokyo,
JP
|
|
| 130.158.1.254 |
2.42ms from Tokyo,
JP
|
|
| 130.158.153.253 |
2.44ms from Tokyo,
JP
|
|
| 130.158.234.38 |
2.72ms from Tokyo,
JP
|
|
| 130.158.6.14 |
2.45ms from Tokyo,
JP
|
|
| 130.158.53.1 |
2.58ms from Tokyo,
JP
|
|
| 130.158.68.254 |
2.43ms from Tokyo,
JP
|
|
| 130.158.41.252 |
2.43ms from Tokyo,
JP
|
|
| 130.158.46.254 |
2.42ms from Tokyo,
JP
|
|
| 130.158.137.253 |
2.39ms from Tokyo,
JP
|
|
| 130.158.233.253 |
2.40ms from Tokyo,
JP
|
|
| 130.158.31.189 |
2.41ms 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 |
|---|---|---|
| 45.61.99.157 |
0.46ms from Ashburn,
US
|
|
| 186.2.213.141 |
9.69ms from Asuncion,
PY
|
|
| 80.138.104.45 |
1.97ms from Berlin,
DE
|
|
| 181.53.32.221 |
1.81ms from Bogota,
CO
|
|
| 41.46.107.13 |
4.79ms from Cairo,
EG
|
|
| 98.101.162.141 |
1.38ms from Charlotte,
US
|
|
| 104.197.222.29 |
0.12ms from Council Bluffs,
US
|
|
| 221.202.58.61 |
10.06ms from Liaoyang,
CN
|
|
| 89.88.33.77 |
5.82ms from Marseille,
FR
|
|
| 46.234.236.141 |
4.73ms from Milan,
IT
|
|
| 115.108.0.189 |
0.75ms from Mumbai,
IN
|
|
| 126.57.246.173 |
12.35ms from Osaka,
JP
|
|
| 92.174.120.61 |
2.05ms from Paris,
FR
|
|
| 37.26.105.109 |
0.29ms from Portsmouth,
GB
|
|
| 78.44.83.237 |
0.53ms from Prague,
CZ
|
|
| 20.235.166.141 |
0.31ms from Saint Thomas Mount,
IN
|
|
| 189.250.234.189 |
9.52ms from Santiago de Queretaro,
MX
|
|
| 1.221.28.77 |
1.89ms from Seoul,
KR
|
|
| 14.62.92.109 |
3.96ms from Seoul,
KR
|
|
| 61.254.6.61 |
1.30ms from Seoul,
KR
|
|
| 220.152.191.29 |
3.35ms from Shenzhen,
CN
|
|
| 182.112.174.29 |
6.41ms from Zhengzhou,
CN
|
|
| 16.62.75.29 |
1.10ms from Zuerich,
CH
|
|
| 213.207.97.125 |
2.04ms from Amsterdam,
NL
|
|
| 188.213.164.157 |
0.32ms from Arezzo,
IT
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.
IPinfo ProbeNet
in Asuncion, PY
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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