Summary
- Hostname
- —
- ASN
- AS151616
- Organization
- HOSTLINK (HK) LIMITED
- Network
- HOSTLINKHK-HK
- Range
- 103.91.151.0 - 103.91.151.255
- /24 block
- 103.91.151.0/24
- Country
- HK
- Blacklists
- 0 of 14
- Abuse contact
- [email protected]
Presence of 103.91.151.4 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 103.91.151.4
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to '103.91.151.0 - 103.91.151.255'
% Abuse contact for '103.91.151.0 - 103.91.151.255' is '[email protected]'
inetnum: 103.91.151.0 - 103.91.151.255
netname: HOSTLINKHK-HK
descr: HOSTLINK (HK) LIMITED
country: HK
admin-c: HLA21-AP
tech-c: HLA21-AP
abuse-c: AH1428-AP
status: ALLOCATED NON-PORTABLE
mnt-by: MAINT-HOSTLINKHK-HK
mnt-irt: IRT-HOSTLINKHK-HK
last-modified: 2025-02-21T04:13:47Z
source: APNIC
irt: IRT-HOSTLINKHK-HK
address: UNIT 804, 8/F, SUNBEAM PLAZA, 1155 CANTON ROAD, MONG KOK KOWLOON 00852
e-mail: [email protected]
abuse-mailbox: [email protected]
admin-c: HLA21-AP
tech-c: HLA21-AP
auth: # Filtered
remarks: [email protected] was validated on 2026-09-22
mnt-by: MAINT-HOSTLINKHK-HK
last-modified: 2026-09-22T14:06:02Z
source: APNIC
role: ABUSE HOSTLINKHKHK
country: ZZ
address: UNIT 804, 8/F, SUNBEAM PLAZA, 1155 CANTON ROAD, MONG KOK KOWLOON 00852
phone: +000000000
e-mail: [email protected]
admin-c: HLA21-AP
tech-c: HLA21-AP
nic-hdl: AH1428-AP
remarks: Generated from irt object IRT-HOSTLINKHK-HK
remarks: [email protected] was validated on 2026-09-22
abuse-mailbox: [email protected]
mnt-by: APNIC-ABUSE
last-modified: 2026-09-22T14:06:38Z
source: APNIC
role: HOSTLINKHK LIMITED administrator
address: UNIT 804, 8/F, SUNBEAM PLAZA, 1155 CANTON ROAD, MONG KOK KOWLOON 00852
country: HK
phone: +852-27717387
fax-no: +852-27717369
e-mail: [email protected]
admin-c: HLA21-AP
tech-c: HLA21-AP
nic-hdl: HLA21-AP
mnt-by: MAINT-HOSTLINKHK-HK
last-modified: 2023-02-17T09:31:17Z
source: APNIC
% Information related to '103.91.151.0/24AS151616'
route: 103.91.151.0/24
origin: AS151616
descr: HOSTLINK (HK) LIMITED
UNIT 804, 8/F, SUNBEAM PLAZA
1155 CANTON ROAD
mnt-by: MAINT-HOSTLINKHK-HK
last-modified: 2023-07-23T02:57:56Z
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 103.91.151.4.
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 103.91.151.4: 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