Summary
- Hostname
- —
- ASN
- AS23724
- Organization
- CHINANET IDC center
- Network
- CHINANET-IDC-BJ
- Range
- 218.30.25.0 - 218.30.29.255
- /24 block
- 218.30.26.0/24
- Country
- CN
- Blacklists
- 0 of 14
- Abuse contact
- —
Presence of 218.30.26.4 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 218.30.26.4
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to '218.30.25.0 - 218.30.29.255'
% Abuse contact for '218.30.25.0 - 218.30.29.255' is '[email protected]'
inetnum: 218.30.25.0 - 218.30.29.255
netname: CHINANET-IDC-BJ
descr: CHINANET IDC center
descr: China Telecom
descr: Beijing 100088
country: CN
admin-c: HC55-AP
tech-c: HC55-AP
mnt-by: MAINT-CHINANET
mnt-lower: MAINT-CHINATELECOM-BJ
status: ALLOCATED NON-PORTABLE
last-modified: 2008-09-04T06:54:09Z
source: APNIC
person: Hostmaster of Beijing Telecom corporation CHINA TELECOM
nic-hdl: HC55-AP
e-mail: [email protected]
address: Beijing Telecom
address: No. 107 XiDan Beidajie, Xicheng District Beijing
phone: +86-010-58503461
fax-no: +86-010-58503054
country: cn
mnt-by: MAINT-CHINATELECOM-BJ
last-modified: 2008-09-04T07:29:39Z
source: APNIC
% Information related to '218.30.26.0/24AS23724'
route: 218.30.26.0/24
origin: AS23724
descr: China Telecom
Data Network Management Division
Network Operation & Maintenance Department
No 19 Chaoyangmen North Street
Dongcheng District
mnt-by: MAINT-CHINANET
last-modified: 2018-12-21T03:29:10Z
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 218.30.26.4.
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 218.30.26.4: 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