IP Address Information For 121.84.21.51
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 121.84.21.51.
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General information:
- IP Address: 121.84.21.51
- DNS Hostname (PTR Record): 121-84-21-51f1.kyt1.eonet.ne.jp
- DNS Nameservers: ns1.eonet.ne.jp, ns7.eonet.ne.jp
- DNS Zone: 21.84.121.in-addr.arpa
- Network route: 121.84.0.0/14
- Network owner: Optage Optage Inc.
- ASN #: 17511
- Part of range: 121.84.21.0/24
Geographic location:
- Country: Japan - JP
- City: Kyoto
- State/Region: Kyoto
- Longitude: 135.768326
- Latitude: 35.011669
- Timezone: +09:00
Location on the map:
Network speed information:
-
Mobile:,Download108.52MbpsUpload14.53Mbps
-
Broadband:,Download363.97MbpsUpload237.02Mbps
IP Address 121.84.21.51 WHOIS Information:
% [whois.apnic.net] % Whois data copyright terms http://www.apnic.net/db/dbcopyright.html % Information related to '121.80.0.0 - 121.87.255.255' % Abuse contact for '121.80.0.0 - 121.87.255.255' is 'hostmaster@nic.ad.jp' inetnum: 121.80.0.0 - 121.87.255.255 netname: K-Opticom descr: OPTAGE Inc. descr: OPTAGE BLDG.,2-1-5 Shiromi,chuo-ku,Osaka 540-8622, Japan country: JP admin-c: JNIC1-AP tech-c: JNIC1-AP status: ALLOCATED PORTABLE remarks: Email address for spam or abuse complaints : abuse@optage.co.jp mnt-by: MAINT-JPNIC mnt-irt: IRT-JPNIC-JP mnt-lower: MAINT-JPNIC last-modified: 2020-10-26T06:30:04Z 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: 2025-04-10T11:04:13Z source: APNIC role: Japan Network Information Center address: Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda address: Chiyoda-ku, Tokyo 101-0047, Japan country: JP phone: +81-3-5297-2311 fax-no: +81-3-5297-2312 e-mail: hostmaster@nic.ad.jp admin-c: JI13-AP tech-c: JE53-AP nic-hdl: JNIC1-AP mnt-by: MAINT-JPNIC last-modified: 2022-01-05T03:04:02Z source: APNIC % Information related to '121.80.0.0 - 121.80.0.31' inetnum: 121.80.0.0 - 121.80.0.31 netname: NESIC descr: NEC Networks & System Integration Corporation country: JP admin-c: JP00211896 tech-c: JP00211896 last-modified: 2021-05-21T19:08:02Z remarks: This information has been partially mirrored by APNIC from remarks: JPNIC. To obtain more specific information, please use the remarks: JPNIC WHOIS Gateway at remarks: http://www.nic.ad.jp/en/db/whois/en-gateway.html or remarks: whois.nic.ad.jp for WHOIS client. (The WHOIS client remarks: defaults to Japanese output, use the /e switch for English remarks: output) source: JPNIC % This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-UK2)
Reputation information:
- Sender score: None - IP doesnt send emails
Blacklists information:
- Listed in Spamhaus: no
- Listed in Barracuda: no
- Listed in Spamcop: no
- More blacklists: Full blacklists test on 121.84.21.51
Email behaviour monitor:
The IP address 121.84.21.51 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 25-08-25 to 04-09-25: