Summary
- Hostname
- 58.86-33-host6.kbtelecom.net.tw
- ASN
- —
- Organization
- KBT Co., LTD
- Network
- KBT-NET
- Range
- 58.86.0.0 - 58.86.255.255
- /24 block
- 58.86.33.0/24
- Country
- TW
- Blacklists
- 0 of 14
- Abuse contact
- [email protected]
Presence of 58.86.33.6 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 58.86.33.6
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to '58.86.0.0 - 58.86.255.255'
% Abuse contact for '58.86.0.0 - 58.86.255.255' is '[email protected]'
inetnum: 58.86.0.0 - 58.86.255.255
country: TW
netname: KBT-NET
admin-c: TR423-AP
tech-c: TR423-AP
abuse-c: TR423-AP
mnt-irt: IRT-KBT-TW
descr: KBT Co., LTD
descr: 4F., No.57, Dongxing Rd., Xinyi Dist., Taipei City 110, Taiwan (R.O.C.)
descr: Taipei
status: ALLOCATED PORTABLE
last-modified: 2026-06-18T06:37:54Z
source: APNIC
mnt-by: MAINT-TW-TWNIC
irt: IRT-KBT-TW
address: KBT Co., LTD
address: 4F., No.57, Dongxing Rd., Xinyi Dist., Taipei City 110, Taiwan (R.O.C.)
address: Taipei
phone: +886-2-8751-8255 ext. 26310
e-mail: [email protected]
abuse-mailbox: [email protected]
admin-c: TR423-AP
tech-c: TR423-AP
remarks: (oid:KBT)
mnt-by: MAINT-TW-TWNIC
last-modified: 2026-07-16T02:54:37Z
source: APNIC
auth: # Filtered
role: TWNIC ROLE-KBT
nic-hdl: TR423-AP
address: KBT Co., LTD
address: 4F., No.57, Dongxing Rd., Xinyi Dist., Taipei City 110, Taiwan (R.O.C.)
address: Taipei
country: TW
phone: +886-2-8751-8255 ext. 26310
e-mail: [email protected]
abuse-mailbox: [email protected]
admin-c: JN717-AP
tech-c: JN717-AP
remarks: (hid:JN517-TW)
mnt-by: MAINT-TW-TWNIC
last-modified: 2025-09-11T01:29:23Z
source: APNIC
% Information related to '58.86.33.0 - 58.86.33.127'
inetnum: 58.86.33.0 - 58.86.33.127
netname: Netstock-TW
descr: Netstock Co.,Ltd
descr: 3F., No.51-2, Lane 145, Dunhua N. Rd., Songshan District, Taipei City 105, Taiwan
descr: Taipei City Taiwan
country: TW
admin-c: MC2098-TW
tech-c: MC2098-TW
mnt-by: MAINT-TW-TWNIC
changed: [email protected] 20070726
status: ASSIGNED NON-PORTABLE
remarks: This information has been partially mirrored by APNIC from
remarks: TWNIC. To obtain more specific information, please use the
remarks: TWNIC whois server at whois.twnic.net.
source: TWNIC
% 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 58.86.33.6.
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 58.86.33.6: 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