Summary
- Hostname
- —
- ASN
- AS7497
- Organization
- CNIC-CAS
- Network
- CSTNET-CN
- Range
- 119.78.0.0 - 119.79.255.255
- /24 block
- 119.78.7.0/24
- Country
- CN
- Blacklists
- 0 of 14
- Abuse contact
- [email protected]
Presence of 119.78.7.81 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 119.78.7.81
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to '119.78.0.0 - 119.79.255.255'
% Abuse contact for '119.78.0.0 - 119.79.255.255' is '[email protected]'
inetnum: 119.78.0.0 - 119.79.255.255
netname: CSTNET-CN
descr: Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)
country: CN
org: ORG-CA107-AP
admin-c: CNIC1-AP
tech-c: CNIC1-AP
abuse-c: AC2741-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-CSTNET-CN
mnt-routes: MAINT-CSTNET-CN
mnt-irt: IRT-CSTNET-CN
last-modified: 2023-10-12T05:10:09Z
source: APNIC
irt: IRT-CSTNET-CN
address: 2 Dongsheng South Road, Haidian District, Beijing Beijing 100190
e-mail: [email protected]
abuse-mailbox: [email protected]
admin-c: CNIC1-AP
tech-c: CNIC1-AP
auth: # Filtered
remarks: [email protected] was validated on 2026-05-11
mnt-by: MAINT-CSTNET-CN
last-modified: 2026-05-11T05:28:58Z
source: APNIC
organisation: ORG-CA107-AP
org-name: CNIC-CAS
org-type: LIR
country: CN
address: 2 Dongsheng South Road, Haidian District
phone: +86.10.58812266
e-mail: [email protected]
mnt-ref: APNIC-HM
mnt-by: APNIC-HM
last-modified: 2023-09-05T02:18:50Z
source: APNIC
role: ABUSE CSTNETCN
country: ZZ
address: 2 Dongsheng South Road, Haidian District, Beijing Beijing 100190
phone: +000000000
e-mail: [email protected]
admin-c: CNIC1-AP
tech-c: CNIC1-AP
nic-hdl: AC2741-AP
remarks: Generated from irt object IRT-CSTNET-CN
remarks: [email protected] was validated on 2026-05-11
abuse-mailbox: [email protected]
mnt-by: APNIC-ABUSE
last-modified: 2026-05-11T05:29:17Z
source: APNIC
role: Computer Network Information Center of Chinese Academy of Sciences administrator
address: 2 Dongsheng South Road, Haidian District, Beijing Beijing 100190
country: CN
phone: +86.10.58812266
e-mail: [email protected]
admin-c: CNIC1-AP
tech-c: CNIC1-AP
nic-hdl: CNIC1-AP
mnt-by: MAINT-CNICOCAOS-CN
last-modified: 2022-05-12T07:31:01Z
source: APNIC
% Information related to '119.78.0.0/15AS7497'
route: 119.78.0.0/15
descr: CSTNET's IP
country: CN
origin: AS7497
remarks: Please contact [email protected] if you have any
remarks: Questions regarding this object.
remarks: Antispam mail please send to [email protected].
notify: [email protected]
mnt-by: MAINT-CSTNET-CN
last-modified: 2023-10-06T05:09:16Z
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 119.78.7.81.
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 119.78.7.81: 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