IP address
Shodan(more info)

Passive DNS

Tags:
- IP blacklists
- PSBL123.31.20.104 is listed on the PSBL blacklist.Spamhaus SBL CSS
Description: The Passive Spam Block List uses the Spamikaze software to detect spam IPs.
Type of feed: primary (feed detail page)
Last checked at: 2026-09-20 15:45:00.251000
Was present on blacklist at: 2026-06-22 23:45, 2026-06-23 07:45, 2026-06-23 15:45, 2026-06-23 23:45, 2026-06-24 07:45, 2026-06-24 15:45, 2026-06-24 23:45, 2026-06-25 07:45, 2026-06-25 15:45, 2026-06-25 23:45, 2026-06-26 07:45, 2026-06-26 15:45, 2026-06-26 23:45, 2026-06-27 07:45, 2026-06-27 15:45, 2026-06-27 23:45, 2026-06-28 07:45, 2026-06-28 15:45, 2026-06-28 23:45, 2026-06-29 07:45, 2026-06-29 15:45, 2026-06-29 23:45, 2026-06-30 07:45, 2026-06-30 15:45, 2026-06-30 23:45, 2026-07-01 07:45, 2026-07-01 15:45, 2026-07-01 23:45, 2026-07-02 07:45, 2026-07-02 15:45, 2026-07-02 23:45, 2026-07-03 07:45, 2026-07-03 15:45, 2026-07-03 23:45, 2026-07-04 07:45, 2026-07-04 15:45, 2026-07-04 23:45, 2026-07-09 23:45, 2026-07-10 07:45, 2026-07-10 15:45, 2026-07-10 23:45, 2026-07-11 07:45, 2026-07-11 15:45, 2026-07-11 23:45, 2026-07-12 07:45, 2026-07-12 15:45, 2026-07-12 23:45, 2026-07-13 07:45, 2026-07-13 15:45, 2026-07-13 23:45, 2026-07-14 07:45, 2026-07-14 15:45, 2026-07-14 23:45, 2026-07-15 07:45, 2026-07-15 15:45, 2026-07-16 07:45, 2026-07-16 15:45, 2026-07-16 23:45, 2026-07-17 07:45, 2026-07-17 15:45, 2026-07-17 23:45, 2026-07-18 07:45, 2026-07-18 15:45, 2026-07-18 23:45, 2026-07-19 07:45, 2026-07-19 15:45, 2026-07-19 23:45, 2026-07-20 07:45, 2026-07-20 15:45, 2026-07-20 23:45, 2026-07-21 07:45, 2026-07-21 15:45, 2026-07-21 23:45, 2026-07-22 07:45, 2026-07-22 15:45, 2026-07-22 23:45, 2026-07-23 07:45, 2026-07-23 15:45, 2026-07-23 23:45, 2026-07-24 07:45, 2026-07-24 15:45, 2026-07-24 23:45, 2026-07-25 07:45, 2026-07-25 15:45, 2026-07-25 23:45, 2026-07-26 07:45, 2026-07-26 15:45, 2026-07-26 23:45, 2026-07-27 07:45, 2026-07-27 15:45, 2026-07-27 23:45, 2026-07-28 07:45, 2026-07-28 15:45, 2026-07-28 23:45, 2026-07-29 07:45, 2026-07-29 15:45, 2026-07-29 23:45, 2026-07-30 07:45, 2026-07-30 15:45, 2026-07-30 23:45, 2026-07-31 07:45, 2026-07-31 15:45, 2026-07-31 23:45, 2026-08-01 07:45, 2026-08-01 15:45, 2026-08-01 23:45, 2026-08-02 07:45, 2026-08-02 15:45, 2026-08-02 23:45, 2026-08-03 07:45, 2026-08-03 15:45, 2026-08-03 23:45, 2026-08-04 07:45, 2026-08-04 15:45, 2026-08-04 23:45, 2026-08-05 07:45, 2026-08-05 15:45, 2026-08-05 23:45, 2026-08-06 07:45, 2026-08-06 15:45, 2026-08-06 23:45, 2026-08-07 07:45, 2026-08-07 15:45, 2026-08-07 23:45, 2026-08-08 07:45, 2026-08-08 15:45, 2026-08-08 23:45, 2026-08-09 07:45, 2026-08-09 15:45, 2026-08-09 23:45, 2026-08-10 07:45, 2026-08-10 15:45, 2026-08-10 23:45, 2026-08-11 07:45, 2026-08-11 15:45, 2026-08-11 23:45, 2026-08-12 07:45, 2026-08-12 15:45, 2026-08-12 23:45, 2026-08-13 07:45, 2026-08-13 15:45, 2026-08-13 23:45, 2026-08-14 07:45, 2026-08-14 15:45, 2026-08-14 23:45, 2026-08-15 07:45, 2026-08-15 15:45, 2026-08-15 23:45, 2026-08-16 07:45, 2026-08-16 15:45, 2026-08-16 23:45, 2026-08-17 07:45, 2026-08-17 15:45, 2026-08-17 23:45, 2026-08-18 07:45, 2026-08-18 15:45, 2026-08-18 23:45, 2026-08-19 07:45, 2026-08-19 15:45, 2026-08-19 23:45, 2026-08-20 07:45, 2026-08-20 15:45, 2026-08-20 23:45, 2026-08-21 07:45, 2026-08-21 15:45, 2026-08-21 23:45, 2026-08-22 07:45, 2026-08-22 15:45, 2026-08-22 23:45, 2026-08-23 07:45, 2026-08-23 15:45, 2026-08-23 23:45, 2026-08-24 07:45, 2026-08-24 15:45, 2026-08-24 23:45, 2026-08-25 07:45, 2026-08-25 15:45, 2026-08-25 23:45, 2026-08-26 07:45, 2026-08-26 15:45, 2026-08-26 23:45, 2026-08-27 07:45, 2026-08-27 15:45, 2026-08-27 23:45, 2026-08-28 07:45, 2026-08-28 15:45, 2026-08-28 23:45, 2026-08-29 07:45, 2026-08-29 15:45, 2026-08-29 23:45, 2026-08-30 07:45, 2026-08-30 15:45, 2026-08-30 23:45, 2026-08-31 07:45, 2026-08-31 15:45, 2026-08-31 23:45, 2026-09-01 07:45, 2026-09-01 15:45, 2026-09-01 23:45, 2026-09-02 07:45, 2026-09-02 15:45, 2026-09-02 23:45, 2026-09-03 07:45, 2026-09-03 15:45, 2026-09-03 23:45, 2026-09-04 07:45, 2026-09-04 15:45, 2026-09-04 23:45, 2026-09-05 07:45, 2026-09-05 15:45, 2026-09-05 23:45, 2026-09-06 07:45, 2026-09-07 15:45, 2026-09-07 23:45, 2026-09-08 07:45, 2026-09-08 15:45, 2026-09-08 23:45, 2026-09-09 07:45, 2026-09-09 15:45, 2026-09-09 23:45, 2026-09-10 07:45, 2026-09-10 15:45, 2026-09-10 23:45, 2026-09-11 07:45, 2026-09-11 15:45, 2026-09-11 23:45, 2026-09-12 07:45, 2026-09-12 15:45, 2026-09-12 23:45, 2026-09-13 07:45, 2026-09-13 15:45, 2026-09-13 23:45, 2026-09-14 07:45, 2026-09-14 15:45, 2026-09-14 23:45, 2026-09-15 07:45, 2026-09-15 15:45, 2026-09-15 23:45, 2026-09-16 07:45, 2026-09-16 15:45, 2026-09-16 23:45, 2026-09-17 07:45, 2026-09-17 15:45, 2026-09-17 23:45, 2026-09-18 07:45, 2026-09-18 15:45, 2026-09-18 23:45, 2026-09-19 07:45, 2026-09-19 15:45, 2026-09-19 23:45, 2026-09-20 07:45, 2026-09-20 15:45123.31.20.104 is listed on the Spamhaus SBL CSS blacklist.Spamhaus XBL CBL
Description: The Spamhaus CSS is part of the SBL. CSS listings will have return code 127.0.0.3 to differentiate from regular SBL listings, which have return code 127.0.0.2.
Type of feed: secondary (DNSBL) (feed detail page)
Last checked at: 2026-09-14 15:49:11.345000
Was present on blacklist at: 2026-07-06 15:49, 2026-07-13 15:49, 2026-07-27 15:49, 2026-08-03 15:49, 2026-08-10 15:49, 2026-08-17 15:49, 2026-08-24 15:49, 2026-08-31 15:49, 2026-09-07 15:49, 2026-09-14 15:49123.31.20.104 is listed on the Spamhaus XBL CBL blacklist.UCEPROTECT L1
Description: The Spamhaus Exploits Block List (XBL) is a realtime database of IP addresses of hijacked PCs infected by illegal 3rd party exploits, including open proxies, worms/viruses with built-in spam engines, and other types of trojan-horse exploits.
Type of feed: secondary (DNSBL) (feed detail page)
Last checked at: 2026-09-14 15:49:11.345000
Was present on blacklist at: 2026-06-29 15:49, 2026-07-13 15:49, 2026-09-14 15:49123.31.20.104 is listed on the UCEPROTECT L1 blacklist.SpamCop
Description: UCEPROTECT-NETWORK list of spam IPs.
Type of feed: primary (feed detail page)
Last checked at: 2026-09-20 15:45:00.609000
Was present on blacklist at: 2026-06-22 23:45, 2026-06-23 07:45, 2026-06-23 15:45, 2026-06-23 23:45, 2026-06-24 07:45, 2026-06-24 15:45, 2026-06-24 23:45, 2026-06-25 07:45, 2026-06-25 15:45, 2026-06-25 23:45, 2026-06-26 07:45, 2026-06-26 15:45, 2026-06-26 23:45, 2026-06-27 07:45, 2026-06-27 15:45, 2026-06-27 23:45, 2026-06-28 07:45, 2026-06-28 15:45, 2026-06-28 23:45, 2026-06-29 07:45, 2026-06-29 15:45, 2026-06-29 23:45, 2026-06-30 07:45, 2026-06-30 15:45, 2026-07-08 07:45, 2026-07-08 15:45, 2026-07-08 23:45, 2026-07-09 07:45, 2026-07-09 15:45, 2026-07-09 23:45, 2026-07-10 07:45, 2026-07-10 15:45, 2026-07-10 23:45, 2026-07-11 07:45, 2026-07-11 15:45, 2026-07-12 07:45, 2026-07-12 15:45, 2026-07-13 07:45, 2026-07-13 15:45, 2026-07-13 23:45, 2026-07-14 07:45, 2026-07-14 15:45, 2026-07-26 23:45, 2026-07-27 07:45, 2026-07-27 15:45, 2026-07-27 23:45, 2026-07-28 07:45, 2026-07-28 15:45, 2026-07-28 23:45, 2026-07-29 07:45, 2026-07-29 15:45, 2026-07-29 23:45, 2026-07-30 07:45, 2026-07-30 15:45, 2026-07-30 23:45, 2026-07-31 07:45, 2026-07-31 15:45, 2026-07-31 23:45, 2026-08-01 07:45, 2026-08-01 15:45, 2026-08-01 23:45, 2026-08-02 07:45, 2026-08-02 15:45, 2026-08-02 23:45, 2026-08-03 07:45, 2026-08-03 15:45, 2026-08-03 23:45, 2026-08-04 07:45, 2026-08-05 07:45, 2026-08-05 15:45, 2026-08-05 23:45, 2026-08-06 07:45, 2026-08-06 15:45, 2026-08-06 23:45, 2026-08-07 15:45, 2026-08-07 23:45, 2026-08-08 07:45, 2026-08-08 15:45, 2026-08-08 23:45, 2026-08-09 07:45, 2026-08-09 15:45, 2026-08-10 07:45, 2026-08-10 15:45, 2026-08-10 23:45, 2026-08-11 07:45, 2026-08-11 15:45, 2026-08-11 23:45, 2026-08-12 07:45, 2026-08-12 15:45, 2026-08-13 07:45, 2026-08-13 15:45, 2026-08-13 23:45, 2026-08-14 07:45, 2026-08-14 15:45, 2026-08-14 23:45, 2026-08-15 07:45, 2026-08-15 15:45, 2026-08-15 23:45, 2026-08-16 07:45, 2026-08-16 15:45, 2026-08-16 23:45, 2026-08-17 07:45, 2026-08-17 15:45, 2026-08-17 23:45, 2026-08-18 07:45, 2026-08-18 15:45, 2026-08-18 23:45, 2026-08-19 07:45, 2026-08-19 15:45, 2026-08-19 23:45, 2026-08-20 07:45, 2026-08-20 15:45, 2026-08-20 23:45, 2026-08-21 07:45, 2026-08-21 15:45, 2026-08-22 07:45, 2026-08-22 15:45, 2026-08-22 23:45, 2026-08-23 07:45, 2026-08-23 15:45, 2026-08-23 23:45, 2026-08-24 07:45, 2026-08-24 15:45, 2026-08-24 23:45, 2026-08-25 07:45, 2026-08-25 15:45, 2026-08-25 23:45, 2026-08-26 07:45, 2026-08-26 15:45, 2026-08-26 23:45, 2026-08-27 07:45, 2026-08-27 15:45, 2026-08-27 23:45, 2026-08-28 07:45, 2026-08-28 15:45, 2026-08-28 23:45, 2026-08-29 07:45, 2026-08-29 15:45, 2026-08-29 23:45, 2026-08-30 07:45, 2026-08-30 23:45, 2026-08-31 07:45, 2026-08-31 15:45, 2026-08-31 23:45, 2026-09-01 07:45, 2026-09-01 15:45, 2026-09-02 07:45, 2026-09-02 15:45, 2026-09-02 23:45, 2026-09-03 23:45, 2026-09-04 07:45, 2026-09-04 15:45, 2026-09-04 23:45, 2026-09-05 07:45, 2026-09-05 15:45, 2026-09-05 23:45, 2026-09-06 07:45, 2026-09-06 23:45, 2026-09-07 15:45, 2026-09-07 23:45, 2026-09-08 07:45, 2026-09-08 15:45, 2026-09-08 23:45, 2026-09-15 15:45, 2026-09-15 23:45, 2026-09-16 07:45, 2026-09-16 15:45, 2026-09-16 23:45, 2026-09-17 07:45, 2026-09-17 15:45, 2026-09-17 23:45, 2026-09-18 07:45, 2026-09-18 15:45, 2026-09-18 23:45, 2026-09-19 07:45, 2026-09-19 15:45, 2026-09-19 23:45, 2026-09-20 15:45123.31.20.104 is listed on the SpamCop blacklist.blocklist.de mail
Description: The SpamCop Blocking List (SCBL) lists IP addresses which have transmitted reported email to SpamCop users.
Type of feed: secondary (DNSBL) (feed detail page)
Last checked at: 2026-09-14 15:49:11.345000
Was present on blacklist at: 2026-08-10 15:49, 2026-09-07 15:49, 2026-09-14 15:49123.31.20.104 is listed on the blocklist.de mail blacklist.
Description: Blocklist.de feed is a free and voluntary service provided<br>by a Fraud/Abuse-specialist. IPs performing Mail attacks.
Type of feed: primary (feed detail page)
Last checked at: 2026-07-24 16:05:00.398000
Was present on blacklist at: 2026-07-22 22:05, 2026-07-23 04:05, 2026-07-23 10:05, 2026-07-23 16:05, 2026-07-23 22:05, 2026-07-24 04:05, 2026-07-24 10:05, 2026-07-24 16:05
Threat categories
| TL | Role | Category | Details |
|---|---|---|---|
| 43 | src | spam | |
| 39 | src | — |
- Origin AS
- AS45899 - VNPT-AS-VN
- BGP Prefix
- 123.31.20.0/24
- geo
- Vietnam
- 🕑 Asia/Bangkok
- hostname
- (null)
- Address block ('inetnum' or 'NetRange' in whois database)
- 123.16.0.0 - 123.31.255.255
- rep
- 0.2928932188134524
- reserved_range
- 0
- Shodan's InternetDB
- Open ports: 137, 3389, 5985
- Tags: eol-os, self-signed
- CPEs: –
- ts_added
- 2026-03-30 15:49:00.832000
- ts_last_update
- 2026-09-20 15:50:08.183000
Warden event timeline
DShield event timeline
Presence on blacklists

