Summary
- Hostname
- —
- ASN
- AS18229
- Organization
- JetSynthesys Pvt Ltd
- Network
- JETSYNTHESYS-IN
- Range
- 103.43.2.0 - 103.43.2.255
- /24 block
- 103.43.2.0/24
- Country
- IN
- Blacklists
- 0 of 14
- Abuse contact
- [email protected]
Presence of 103.43.2.9 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 103.43.2.9
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to '103.43.2.0 - 103.43.2.255'
% Abuse contact for '103.43.2.0 - 103.43.2.255' is '[email protected]'
inetnum: 103.43.2.0 - 103.43.2.255
netname: JETSYNTHESYS-IN
descr: JetSynthesys Pvt Ltd
admin-c: IA185-AP
tech-c: PP986-AP
country: IN
mnt-by: MAINT-IN-IRINN
mnt-irt: IRT-JETSYNTHESYS-IN
mnt-routes: MAINT-IN-JETSYNTHESYS
mnt-routes: MAINT-IN-IRINN
status: ASSIGNED PORTABLE
geoloc: 73.8667 18.5333
last-modified: 2025-08-11T22:49:09Z
source: APNIC
irt: IRT-JETSYNTHESYS-IN
address: 101-104, Metro House, Mangaldas Road, Bund Garden
e-mail: [email protected]
abuse-mailbox: [email protected]
admin-c: IA185-AP
tech-c: PP986-AP
auth: # Filtered
mnt-by: MAINT-IN-JETSYNTHESYS
mnt-by: MAINT-IN-IRINN
last-modified: 2026-09-26T06:22:14Z
source: APNIC
role: IT Admin
address: 101-104, Metro House, Mangaldas Road, Bund Garden
country: IN
phone: +91 02026161973
e-mail: [email protected]
admin-c: PP986-AP
tech-c: PP986-AP
nic-hdl: IA185-AP
mnt-by: MAINT-IN-IRINN
last-modified: 2014-11-17T11:54:15Z
source: APNIC
person: Parimit Parmar
address: 101-104, Metro House, Mangaldas Road, Bund Garden
country: IN
phone: +91 02026161973
e-mail: [email protected]
nic-hdl: PP986-AP
mnt-by: MAINT-IN-JETSYNTHESYS
mnt-by: MAINT-IN-IRINN
last-modified: 2025-09-27T09:54:16Z
source: APNIC
% Information related to '103.43.2.0/24AS18229'
route: 103.43.2.0/24
descr: JetSynthesys Pvt Ltd
origin: AS18229
mnt-by: MAINT-IN-IPAPELABS
mnt-by: MAINT-IN-IRINN
mnt-routes: MAINT-IN-IRINN
mnt-routes: MAINT-IN-IPAPELABS
notify: [email protected]
last-modified: 2025-12-14T22:16:54Z
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 103.43.2.9.
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 103.43.2.9: 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