IP Address Information For 163.221.12.236
IP address information can vary in different details, from the IP's server and datacenters, WHOIS information, all the way to geolocation and longitude/latitude coordinates, and
goes all the way to the IP address' network organization, IP ranges, appearance in DNSBL blacklists, and more.
In this page we have collected a sample of information for the IP address 163.221.12.236.
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General information:
- IP Address: 163.221.12.236
- DNS Hostname (PTR Record): mailrelay41.naist.jp
- DNS Nameservers: dns-x.sinet.ad.jp, ns.naist.jp, ns3.naist.jp
- DNS Zone: 221.163.in-addr.arpa
- Network route: 163.221.0.0/16
- Network owner: Nara Institute of Science and Technology National University Corporation
- ASN #: 131158
- Part of range: 163.221.12.0/24
Geographic location:
- Country: Japan - JP
- City: Nara
- State/Region: Nara
- Longitude: 135.800171
- Latitude: 34.683018
- Timezone: +09:00
Location on the map:
Network speed information:
-
Mobile:,Download107.71MbpsUpload14.53Mbps
-
Broadband:,Download362.60MbpsUpload238.28Mbps
IP Address 163.221.12.236 WHOIS Information:
% [whois.apnic.net] % Whois data copyright terms http://www.apnic.net/db/dbcopyright.html % Information related to '163.221.0.0 - 163.221.255.255' % Abuse contact for '163.221.0.0 - 163.221.255.255' is 'hostmaster@nic.ad.jp' inetnum: 163.221.0.0 - 163.221.255.255 netname: AISTNET country: JP descr: Nara Institute of Science and Technology, National University Corporation admin-c: MC1685-AP tech-c: MK998-AP tech-c: YS2498-AP tech-c: AY553-AP status: ASSIGNED PORTABLE mnt-by: MAINT-JPNIC mnt-irt: IRT-JPNIC-JP last-modified: 2021-10-29T09:32:02Z source: APNIC irt: IRT-JPNIC-JP address: Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda address: Chiyoda-ku, Tokyo 101-0047, japan e-mail: hostmaster@nic.ad.jp abuse-mailbox: hostmaster@nic.ad.jp phone: +81-3-5297-2311 fax-no: +81-3-5297-2312 admin-c: JNIC1-AP tech-c: JNIC1-AP auth: # Filtered remarks: hostmaster@nic.ad.jp was validated on 2024-11-27 mnt-by: MAINT-JPNIC last-modified: 2025-09-04T01:00:00Z source: APNIC person: Akio Yonezawa nic-hdl: AY553-AP e-mail: yonezawa@itc.naist.jp address: 8916-5, Takayama-cho, Ikoma, Nara 630-0192, Japan phone: +81-743-72-5770 country: JP mnt-by: MAINT-JPNIC last-modified: 2021-10-29T09:30:02Z source: APNIC person: Network management Contact nic-hdl: MC1685-AP e-mail: noc@itc.naist.jp address: 8916-5 Takayama-cho, Ikoma, Nara, Japan phone: +81-743-72-5142 fax-no: +81-743-72-5149 country: JP mnt-by: MAINT-JPNIC last-modified: 2014-04-02T00:44:02Z source: APNIC person: Masatoshi Kakiuchi nic-hdl: MK998-AP e-mail: kakiuchi.noc@nara.wide.ad.jp address: 8916-5 Takayama-cho, Ikoma, Nara, Japan phone: +81-743-72-5142 fax-no: +81-743-72-5149 country: JP mnt-by: MAINT-JPNIC last-modified: 2014-04-02T00:44:01Z source: APNIC person: Yoshiaki Sato nic-hdl: YS2498-AP e-mail: yosiaki@itc.naist.jp address: 8916-5, Takayama-cho, Ikoma, Nara 630-0192, Japan phone: +81-743-72-5951 country: JP mnt-by: MAINT-JPNIC last-modified: 2021-10-29T09:30:02Z source: APNIC % This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-UK2)
Reputation information:
- Sender score: 99 (very good)
Blacklists information:
- Listed in Spamhaus: no
- Listed in Barracuda: no
- Listed in Spamcop: no
- More blacklists: Full blacklists test on 163.221.12.236
Email behaviour monitor:
The IP address 163.221.12.236 appears to be an active mail server. The following charts represent data the community has gathered by observing the mail sending behaviour of this IP address during the last 10 days from 29-09-25 to 09-10-25: