Summary
- Hostname
- ntc.203.80.166.4.neocomisp.com
- ASN
- AS133200
- Organization
- NeocomISP Limited
- Network
- NEOCOMISP-KH
- Range
- 203.80.160.0 - 203.80.167.255
- /24 block
- 203.80.166.0/24
- Country
- KH
- Blacklists
- 1 of 14
- Abuse contact
- [email protected]
Presence of 203.80.166.4 in blacklists
| List | Status |
|---|---|
| zen.spamhaus.org | 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 203.80.166.4
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to '203.80.160.0 - 203.80.167.255'
% Abuse contact for '203.80.160.0 - 203.80.167.255' is '[email protected]'
inetnum: 203.80.160.0 - 203.80.167.255
netname: NEOCOMISP-KH
descr: NeocomISP Limited
descr: No.19, Str.90, Sangkat Sras Chork
descr: Khan Daun Penh, Phnom Penh, Cambodia
country: KH
org: ORG-NL7-AP
admin-c: KL1480-AP
tech-c: KL1480-AP
abuse-c: AN998-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-KH-NEOCOM-AP
mnt-routes: MAINT-KH-NEOCOM-AP
mnt-irt: IRT-NEOCOMISP-KH
last-modified: 2020-09-09T01:21:50Z
source: APNIC
irt: IRT-NEOCOMISP-KH
address: No. 19 St. 90
address: Sangkat Sras Chork
address: Khan Duan Penh Phnom Penh
address: Cambodia
phone: +855 93 22 2020
e-mail: [email protected]
abuse-mailbox: [email protected]
admin-c: PL997-AP
tech-c: PL997-AP
auth: # Filtered
remarks: [email protected] was validated on 2026-07-15
remarks: [email protected] was validated on 2026-08-18
mnt-by: MAINT-NEOCOMISP-KH-AP
last-modified: 2026-08-18T13:44:14Z
source: APNIC
organisation: ORG-NL7-AP
org-name: NeocomISP Limited
org-type: LIR
country: KH
address: No.19, Str.90, Sangkat Sras Chork, Khan Daun Penh, PP
phone: +855-93-222-765
fax-no: +855-23-722-324
e-mail: [email protected]
mnt-ref: APNIC-HM
mnt-by: APNIC-HM
last-modified: 2025-08-13T13:00:42Z
source: APNIC
role: ABUSE NEOCOMISPKH
country: ZZ
address: No. 19 St. 90
address: Sangkat Sras Chork
address: Khan Duan Penh Phnom Penh
address: Cambodia
phone: +855 93 22 2020
e-mail: [email protected]
admin-c: PL997-AP
tech-c: PL997-AP
nic-hdl: AN998-AP
remarks: Generated from irt object IRT-NEOCOMISP-KH
remarks: [email protected] was validated on 2026-07-15
remarks: [email protected] was validated on 2026-08-18
abuse-mailbox: [email protected]
mnt-by: APNIC-ABUSE
last-modified: 2026-08-19T02:40:00Z
source: APNIC
person: Kelvin Law
address: No.19, Street 90, Sangkat Sras Chork, Khan Daun Penh, Phnom Penh, 12201, The Kingdom of Cambodia.
country: KH
phone: +855-93 22 20 20
e-mail: [email protected]
nic-hdl: KL1480-AP
mnt-by: MAINT-NEOCOMISP-KH-AP
last-modified: 2017-11-29T02:01:34Z
source: APNIC
% Information related to '203.80.166.0/24AS133200'
route: 203.80.166.0/24
origin: AS133200
descr: NeocomISP Limited
No.19, Str.90, Sangkat Sras Chork, Khan Daun Penh, PP
mnt-by: MAINT-KH-NEOCOM-AP
last-modified: 2024-07-18T09:05:19Z
source: APNIC
% Information related to '203.80.166.0/24AS9902'
route: 203.80.166.0/24
origin: AS9902
descr: NeocomISP Limited
No.19, Str.90, Sangkat Sras Chork, Khan Daun Penh, PP
mnt-by: MAINT-KH-NEOCOM-AP
last-modified: 2020-10-30T23:49:48Z
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 203.80.166.4.
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 203.80.166.4: 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