Summary
- Hostname
- —
- ASN
- AS17885
- Organization
- PT XLSMART Telecom Sejahtera Tbk
- Network
- XLNET-ID
- Range
- 121.52.0.0 - 121.52.127.255
- /24 block
- 121.52.94.0/24
- Country
- ID
- Blacklists
- 0 of 14
- Abuse contact
- [email protected]
Presence of 121.52.94.2 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 121.52.94.2
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to '121.52.0.0 - 121.52.127.255'
% Abuse contact for '121.52.0.0 - 121.52.127.255' is '[email protected]'
inetnum: 121.52.0.0 - 121.52.127.255
netname: XLNET-ID
descr: PT XLSMART Telecom Sejahtera Tbk
descr: Cellular, GPRS and Internet Service Provider
country: ID
admin-c: DM131-AP
tech-c: BDS6-AP
remarks: Send Spam & Abuse Reports to : [email protected]
status: ALLOCATED PORTABLE
mnt-by: MNT-APJII-ID
mnt-lower: MAINT-ID-XLNET
mnt-routes: MAINT-ID-XLNET
mnt-irt: IRT-XLNET-ID
last-modified: 2025-08-26T05:36:41Z
source: APNIC
irt: IRT-XLNET-ID
address: PT XL Axiata Tbk
address: XL Axiata Tower
address: Jl. H.R. Rasuna Said X5 Kav. 11 - 12
address: Kuningan Timur, Setiabudi, Jakarta Selatan 12950
e-mail: [email protected]
abuse-mailbox: [email protected]
admin-c: DM131-AP
tech-c: BDS6-AP
auth: # Filtered
mnt-by: MAINT-ID-XLNET
last-modified: 2026-03-09T15:39:30Z
source: APNIC
person: Beny Dwi Setyawan
address: XL Axiata Tower
address: Jl. H.R Rasuna Said X5 Kav.11-12
address: Kuningan Timur Setiabudi Jakarta Selatan 12950
country: ID
phone: +62-21-5761881
phone: +62-21-5761880
e-mail: [email protected]
nic-hdl: BDS6-AP
mnt-by: MAINT-ID-XLNET
last-modified: 2019-08-24T03:46:08Z
source: APNIC
person: Dwi Mahindra
nic-hdl: DM131-AP
e-mail: [email protected]
address: Jl. H.R. Rasuna Said X5 Kav. 11 - 12
address: Kuningan Timur, Setiabudi,
address: Jakarta Selatan 12950
phone: +62-21-579-59415
fax-no: +62-21-579-59184
country: ID
mnt-by: MAINT-ID-XLNET
last-modified: 2018-10-31T07:05:27Z
source: APNIC
% Information related to '121.52.94.0/24AS17885'
route: 121.52.94.0/24
origin: AS17885
descr: Indonesia Network Information Center
APJII - Cyber Building 11th Floor
Jl. Kuningan Barat No. 8
mnt-by: MAINT-ID-XLNET
last-modified: 2019-11-19T16:31:49Z
source: APNIC
% Information related to '121.52.94.0 - 121.52.94.255'
inetnum: 121.52.94.0 - 121.52.94.255
netname: ISP_Lombok
descr: Excelcomindo Pratama, PT.
descr: Cellular, GPRS and Internet Service Provider
country: ID
admin-c: HA168-AP
tech-c: IW106-AP
remarks: Send Spam & Abuse Reports to : [email protected]
status: ALLOCATED NON-PORTABLE
mnt-by: MAINT-ID-XLNET
last-modified: 2008-11-24T08:48:07Z
source: IDNIC
person: Haerani Akbar
nic-hdl: HA168-AP
e-mail: [email protected]
address: Jl. H.R. Rasuna Said X5 Kav. 11 - 12
address: Kuningan Timur, Setiabudi, Jakarta Selatan 12950
phone: +62-21-579-59556
fax-no: +62-21-579-59558
country: ID
mnt-by: MAINT-ID-XLNET
last-modified: 2021-09-10T08:11:51Z
source: IDNIC
person: Iwan Wibisana
nic-hdl: IW106-AP
e-mail: [email protected]
address: XL Axiata Tower
address: JL. H. R. Rasuna Said X5 Kav. 11-12
address: Kuningan Timur, Setiabudi, Jakarta Selatan 12950
phone: +62-21-579-59556
fax-no: +62-21-579-59558
country: ID
mnt-by: MAINT-ID-XLNET
last-modified: 2021-09-10T08:15:10Z
source: IDNIC
% Information related to '121.52.94.0/24AS17885'
route: 121.52.94.0/24
descr: XL-AXIATA Tbk GSM
origin: AS17885
mnt-by: MAINT-ID-XLNET
last-modified: 2021-05-11T07:14:15Z
source: IDNIC
% 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 121.52.94.2.
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 121.52.94.2: 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