203.112.64.0/21
AS2907 · Research Organization of Information and Systems, National Institute of Informatics
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| Country |
Japan
|
| Domain | chikushi-u.ac.jp |
| ASN | AS2907 |
| Registry | APNIC |
| ID | CKADMIN |
WHOIS Details
inetnum: 203.112.64.0 - 203.112.71.255 netname: CKADMIN descr: Chikushi Jogakuen University Network, descr: Dazaifu, Fukuoka, Japan country: JP org: ORG-CJU1-AP admin-c: YY3061-AP tech-c: SY2812-AP abuse-c: AC2164-AP status: ALLOCATED PORTABLE remarks: -------------------------------------------------------- remarks: To report network abuse, please contact mnt-irt remarks: For troubleshooting, please contact tech-c and admin-c remarks: Report invalid contact via www.apnic.net/invalidcontact remarks: -------------------------------------------------------- remarks: -------------------------------------------------------- remarks: To report network abuse, please contact mnt-irt remarks: For troubleshooting, please contact tech-c and admin-c remarks: Report invalid contact via www.apnic.net/invalidcontact remarks: -------------------------------------------------------- mnt-by: APNIC-HM mnt-lower: MAINT-JP-CKADMIN mnt-routes: MAINT-JP-CKADMIN mnt-irt: IRT-CKADMIN-JP last-modified: 2020-10-20T01:08:41Z source: APNIC irt: IRT-CKADMIN-JP address: 2-12-1, Ishizaka, Dazaifu, Fukuoka,Japan e-mail: [email protected] abuse-mailbox: [email protected] admin-c: YY3061-AP tech-c: SY2812-AP auth: # Filtered remarks: [email protected] was validated on 2025-11-26 mnt-by: MAINT-JP-CKADMIN last-modified: 2025-11-26T15:50:26Z source: APNIC organisation: ORG-CJU1-AP org-name: Chikushi Jogakuen University org-type: LIR country: JP address: 2-12-1, Ishizaka phone: +81-92-925-9944 fax-no: +81-92-925-3153 e-mail: [email protected] mnt-ref: APNIC-HM mnt-by: APNIC-HM last-modified: 2023-09-05T02:15:08Z source: APNIC role: ABUSE CKADMINJP country: ZZ address: 2-12-1, Ishizaka, Dazaifu, Fukuoka,Japan phone: +000000000 e-mail: [email protected] admin-c: YY3061-AP tech-c: SY2812-AP nic-hdl: AC2164-AP remarks: Generated from irt object IRT-CKADMIN-JP remarks: [email protected] was validated on 2025-11-26 abuse-mailbox: [email protected] mnt-by: APNIC-ABUSE last-modified: 2025-11-26T15:50:55Z source: APNIC person: shusuke YOSHIDA address: 2-12-1, Ishizaka, Dazaifu, Fukuoka,Japan country: JP phone: +81-92-925-9944 e-mail: [email protected] nic-hdl: SY2812-AP mnt-by: MAINT-JP-CKADMIN last-modified: 2015-04-22T03:47:40Z source: APNIC person: Yoshitaka YOSHINO address: 2-12-1, Ishizaka, Dazaifu, Fukuoka,Japan country: JP phone: +81-92-925-9944 e-mail: [email protected] nic-hdl: YY3061-AP mnt-by: MAINT-JP-CKADMIN last-modified: 2015-04-22T01:23:47Z source: APNIC route: 203.112.64.0/21 descr: Chikushi Jogakuen University country: JP origin: AS37984 notify: [email protected] mnt-by: MAINT-JP-CKADMIN last-modified: 2011-05-08T18:56:22Z source: APNIC
Nearby Ranges
BGP prefixes that overlap with 203.112.0.0/16
| Range | ASN | Company | Num of IPs |
|---|---|---|---|
| 203.112.224.0/19 | AS4637 | Telstra Global Internet Services Network Blocks | 8,192 |
| 203.112.192.0/19 | AS45588 | Internet Access & Telecom Carrier Service Provider. | 8,192 |
| 203.112.160.0/19 | AS9226 | 1-NET ISP Services Network. | 8,192 |
| 203.112.32.0/19 | AS7522 | STNet, Incorporated | 8,192 |
| 203.112.0.0/19 | AS4685 | ASAHI Net,Inc. | 8,192 |
| 203.112.192.0/19 | AS17494 | Internet Access & Telecom Carrier Service Provider. | 8,192 |
| 203.112.136.0/21 | AS17439 | Netmagic IT Services Pvt Ltd | 2,048 |
| 203.112.72.0/21 | AS38031 | OptiMax COmmunication Ltd | 2,048 |
| 203.112.132.0/22 | AS140641 | YOTTA NETWORK SERVICES PRIVATE LIMITED | 1,024 |
| 203.112.156.0/22 | AS140641 | YOTTA NETWORK SERVICES PRIVATE LIMITED | 1,024 |
| 203.112.77.0/24 | AS38031 | Md. Emdadul Hoque Molla | 256 |
| 203.112.78.0/24 | AS38031 | Md. Emdadul Hoque Molla | 256 |
| 203.112.79.0/24 | AS38031 | Md. Emdadul Hoque Molla | 256 |
| 203.112.76.0/24 | AS38031 | Md. Emdadul Hoque Molla | 256 |
| 203.112.75.0/24 | AS38031 | Md. Emdadul Hoque Molla | 256 |
| 203.112.231.0/24 | AS4637 | Telstra Global Internet Services Network /24 Block | 256 |
| 203.112.235.0/24 | AS4637 | Telstra Global Internet Services Network /24 Block | 256 |
| 203.112.236.0/24 | AS4637 | Telstra Global Internet Services Network /24 Block | 256 |
| 203.112.237.0/24 | AS4637 | Telstra Global Internet Services Network /24 Block | 256 |
| 203.112.74.0/24 | AS38031 | Md. Emdadul Hoque Molla | 256 |
| 203.112.73.0/24 | AS38031 | Md. Emdadul Hoque Molla | 256 |
| 203.112.72.0/24 | AS38031 | Md. Emdadul Hoque Molla | 256 |
Hosted domains
There are no domains currently hosted on this ASN.
Hosted domains API
Pingable IPs
10 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.
| IP Address | ASN | Details |
|---|---|---|
| 203.112.64.1 |
12.83ms from Osaka,
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 |
|---|---|---|
| 154.247.127.117 |
14.07ms from Algiers,
DZ
|
|
| 210.55.5.165 |
0.53ms from Auckland,
NZ
|
|
| 52.167.162.69 |
0.28ms from Boydton,
US
|
|
| 201.16.48.5 |
0.61ms from Brasilia,
BR
|
|
| 75.49.73.133 |
19.89ms from Dallas,
US
|
|
| 64.19.212.5 |
1.15ms from Draper,
US
|
|
| 172.221.65.37 |
9.95ms from Greenwood Village,
US
|
|
| 103.177.110.5 |
1.73ms from Ho Chi Minh City,
VN
|
|
| 34.147.203.181 |
0.10ms from London,
GB
|
|
| 23.243.195.149 |
5.45ms from Los Angeles,
US
|
|
| 172.114.152.117 |
6.22ms from Los Angeles,
US
|
|
| 91.197.172.5 |
10.03ms from Moscow,
RU
|
|
| 87.89.198.101 |
1.35ms from Paris,
FR
|
|
| 4.242.127.197 |
0.31ms from Quincy,
US
|
|
| 2.239.53.181 |
18.52ms from Rome,
IT
|
|
| 220.118.2.5 |
1.36ms from Seoul,
KR
|
|
| 1.227.107.5 |
1.28ms from Seoul,
KR
|
|
| 1.228.85.101 |
2.84ms from Seoul,
KR
|
|
| 140.126.130.229 |
1.90ms from Taipei,
TW
|
|
| 182.155.116.197 |
3.12ms from Taipei,
TW
|
|
| 101.0.244.5 |
1.95ms from Taipei,
TW
|
|
| 133.242.202.133 |
16.41ms from Tokyo,
JP
|
|
| 41.98.245.181 |
9.93ms from Valencia,
ES
|
|
| 87.212.38.133 |
3.22ms from Amsterdam,
NL
|
|
| 76.120.189.165 |
10.27ms from Ashburn,
US
|
Traceroute
Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.
IPinfo ProbeNet
in Osaka, JP
What are IP address ranges?
IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.
Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.
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