IP address

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--172.56.81.210

Shodan(more info)

Passive DNS

IP blacklists

Spamhaus XBL CBL

172.56.81.210 is listed on the Spamhaus XBL CBL blacklist.

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: 2025-12-10 05:05:56.761000
Was present on blacklist at: 2025-12-10 05:05

Spamhaus PBL ISP

172.56.81.210 is listed on the Spamhaus PBL ISP 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: 2025-12-10 05:05:56.761000
Was present on blacklist at: 2025-12-10 05:05

DShield reports (IP summary, reports)

2025-12-09

Number of reports: 94

Distinct targets: 10

Origin AS

AS21928 - T-MOBILE-AS21928

BGP Prefix

172.56.80.0/23

geo

United States, Phoenix

🕑 America/Phoenix

hostname

(null)

Address block ('inetnum' or 'NetRange' in whois database)

172.32.0.0 - 172.63.255.255

reserved_range

0

ts_added

2025-12-10 05:05:56.228000

ts_last_update

2025-12-16 05:30:24.093000

Warden event timeline

DShield event timeline

Presence on blacklists