Summary
- Hostname
- —
- ASN
- —
- Organization
- CHINANET Guangdong province network
- Network
- CHINANET-GD
- Range
- 121.8.0.0 - 121.15.255.255
- /24 block
- 121.12.140.0/24
- Country
- CN
- Blacklists
- 0 of 14
- Abuse contact
- [email protected]
Presence of 121.12.140.32 in blacklists
| List | Status |
|---|---|
| zen.spamhaus.org | Not listed |
| bl.spamcop.net | Not listed |
| black.junkemailfilter.com | Not listed |
| multi.surbl.org | Not listed |
| dnsbl.sorbs.net | Not listed |
| b.barracudacentral.org | Not listed |
| dnsbl.tornevall.org | Not listed |
| dnsbl.httpbl.org | Not listed |
| dnsbl-1.uceprotect.net | Not listed |
| dnsbl-2.uceprotect.net | Not listed |
| dnsbl-3.uceprotect.net | Not listed |
| v4.fullbogons.cymru.com | Not listed |
| bl.blocklist.de | Not listed |
| rbl.blockedservers.com | Not listed |
What is a blacklist (RBL)?
An RBL (Real-time Blackhole List), also known as a DNSBL (DNS-based Blackhole List), is a mechanism used to fight spam by blocking e-mails coming from sources known to send spam. RBLs are databases listing the IP addresses deemed responsible for sending unsolicited e-mail. Mail server administrators use these lists to filter incoming e-mails by checking whether the sender's IP address appears in one or more RBLs. If it does, the e-mail may be rejected or subjected to additional checks.
There are different types of RBLs, each with its own criteria for listing IP addresses. Some focus on IP addresses that send spam directly, while others list IP addresses belonging to networks known to host computers infected with malware and used as bots to send spam. RBL operators keep their lists up to date through automatic and manual contributions, and IP address owners can often request removal from a list if they believe the listing is unjustified.
WHOIS data for 121.12.140.32
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to '121.8.0.0 - 121.15.255.255'
% Abuse contact for '121.8.0.0 - 121.15.255.255' is '[email protected]'
inetnum: 121.8.0.0 - 121.15.255.255
netname: CHINANET-GD
descr: CHINANET Guangdong province network
descr: China Telecom
descr: No.31,jingrong street
descr: Beijing 100032
country: CN
admin-c: CH93-AP
tech-c: IC83-AP
abuse-c: AC1573-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: --------------------------------------------------------
mnt-by: APNIC-HM
mnt-lower: MAINT-CHINANET-GD
mnt-routes: MAINT-CHINANET-GD
mnt-irt: IRT-CHINANET-CN
last-modified: 2021-06-15T08:06:11Z
source: APNIC
irt: IRT-CHINANET-CN
address: No.31 ,jingrong street,beijing
address: 100032
e-mail: [email protected]
abuse-mailbox: [email protected]
admin-c: CH93-AP
tech-c: CH93-AP
auth: # Filtered
remarks: [email protected] was validated on 2026-05-21
mnt-by: MAINT-CHINANET
last-modified: 2026-05-21T01:31:36Z
source: APNIC
role: ABUSE CHINANETCN
country: ZZ
address: No.31 ,jingrong street,beijing
address: 100032
phone: +000000000
e-mail: [email protected]
admin-c: CH93-AP
tech-c: CH93-AP
nic-hdl: AC1573-AP
remarks: Generated from irt object IRT-CHINANET-CN
remarks: [email protected] was validated on 2026-05-21
abuse-mailbox: [email protected]
mnt-by: APNIC-ABUSE
last-modified: 2026-05-21T01:32:00Z
source: APNIC
person: Chinanet Hostmaster
nic-hdl: CH93-AP
e-mail: [email protected]
address: No.31 ,jingrong street,beijing
address: 100032
phone: +86-10-58501724
fax-no: +86-10-58501724
country: CN
mnt-by: MAINT-CHINANET
last-modified: 2022-02-28T06:53:44Z
source: APNIC
person: IPMASTER CHINANET-GD
nic-hdl: IC83-AP
e-mail: [email protected]
address: NO.18,RO. ZHONGSHANER,YUEXIU DISTRIC,GUANGZHOU
phone: +86-20-87189274
fax-no: +86-20-87189274
country: CN
mnt-by: MAINT-CHINANET-GD
remarks: IPMASTER is not for spam complaint,please send spam complaint to [email protected]
abuse-mailbox: [email protected]
last-modified: 2021-05-12T09:06:58Z
source: APNIC
% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-UK2)
Related domain names
Domains mentioned in the reverse DNS and the WHOIS of 121.12.140.32.
What is an IP address?
An IP address is a unique identifier on the internet that identifies a server or an internet user. Here the IP address is 121.12.140.32: it may be the unique address used to reach a website, or the unique address of an internet user.
An SMTP server (a server used to send e-mails) must have a reverse DNS record associated with its IP address