IP address

Passive DNS

Tags: IP in hostname

IP blacklists: UCEPROTECT L1
173.161.142.21 is listed on the UCEPROTECT L1 blacklist.

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

Last checked at: 2025-12-16 00:45:00.533000
Was present on blacklist at: 2025-12-12 08:45, 2025-12-12 16:45, 2025-12-13 00:45, 2025-12-13 08:45, 2025-12-13 16:45, 2025-12-14 00:45, 2025-12-14 08:45, 2025-12-14 16:45, 2025-12-15 00:45, 2025-12-15 08:45, 2025-12-15 16:45, 2025-12-16 00:45
Spamhaus SBL CSS
173.161.142.21 is listed on the Spamhaus SBL CSS blacklist.

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: 2025-12-12 08:51:26.899000
Was present on blacklist at: 2025-12-12 08:51

Origin AS: AS7922 - COMCAST-7922
BGP Prefix: 173.160.0.0/13
geo: United States, Philadelphia; 🕑 America/New_York
hostname: 173-161-142-21-Philadelphia.hfc.comcastbusiness.net
hostname_class: ['ip_in_hostname']
Address block ('inetnum' or 'NetRange' in whois database): 173.160.0.0 - 173.167.255.255
reserved_range: 0
Shodan's InternetDB: Open ports: 80, 443, 888, 4433; Tags: –; CPEs: –
ts_added: 2025-12-12 08:51:26.616000
ts_last_update: 2025-12-16 00:51:54.727000

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DShield event timeline

Presence on blacklists