IP address

Search at other sites:
.00723.251.55.216
Shodan(more info)
Passive DNS
Tags:
IP blacklists
Spamhaus SBL CSS
23.251.55.216 was recently listed on the Spamhaus SBL CSS blacklist, but currently it is not.

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: 2026-09-01 16:52:20.613000
Was present on blacklist at: 2026-08-18 16:52, 2026-08-25 16:52
Spamhaus XBL CBL
23.251.55.216 was recently listed on the Spamhaus XBL CBL blacklist, but currently it is not.

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: 2026-09-01 16:52:20.613000
Was present on blacklist at: 2026-08-18 16:52, 2026-08-25 16:52
Spamhaus PBL
23.251.55.216 is listed on the Spamhaus PBL blacklist.

Description: The Spamhaus PBL is a DNSBL database of end-user IP address ranges which should not be delivering unauthenticated SMTP email to any Internet mail server except those provided for specifically by an ISP for that customer's use.
Type of feed: secondary (DNSBL) (feed detail page)

Last checked at: 2026-09-01 16:52:20.613000
Was present on blacklist at: 2026-08-18 16:52, 2026-08-25 16:52, 2026-09-01 16:52
UCEPROTECT L1
23.251.55.216 is listed on the UCEPROTECT L1 blacklist.

Description: UCEPROTECT-NETWORK list of spam IPs.
Type of feed: primary (feed detail page)

Last checked at: 2026-08-26 23:45:00.686000
Was present on blacklist at: 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

Threat categories

TLRoleCategoryDetails
43 src —
38 src login port: 25, 465, 587
protocol: smtp
Warden events (20)
2026-08-25
AttemptLogin (node.ce2b59): 2
IntrusionUserCompromise (node.cfb4f7): 2
2026-08-23
AttemptLogin (node.ce2b59): 1
2026-08-22
AttemptLogin (node.ce2b59): 2
2026-08-20
AttemptLogin (node.ce2b59): 4
IntrusionUserCompromise (node.cfb4f7): 4
2026-08-19
AttemptLogin (node.ce2b59): 4
2026-08-18
AttemptLogin (node.ce2b59): 1
Origin AS
AS62610 - ZEN-DPS
BGP Prefix
23.251.55.0/24
geo
Brazil, São Paulo
🕑 America/Sao_Paulo
hostname
(null)
Address block ('inetnum' or 'NetRange' in whois database)
23.251.32.0 - 23.251.63.255
last_activity
2026-08-25 01:59:22
last_warden_event
2026-08-25 01:59:22
rep
0.007047872040293779
reserved_range
0
Shodan's InternetDB
Open ports: 80, 443, 9100, 16001
Tags: –
CPEs: –
ts_added
2026-08-18 16:52:11.506000
ts_last_update
2026-09-03 16:52:20.130000

Warden event timeline

DShield event timeline

Presence on blacklists