IP address

Passive DNS

Tags: IP in hostname

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

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

Last checked at: 2025-10-14 15:45:00.528000
Was present on blacklist at: 2025-10-08 07:45, 2025-10-08 15:45, 2025-10-08 23:45, 2025-10-09 07:45, 2025-10-09 15:45, 2025-10-09 23:45, 2025-10-10 07:45, 2025-10-10 15:45, 2025-10-10 23:45, 2025-10-11 07:45, 2025-10-11 15:45, 2025-10-11 23:45, 2025-10-12 07:45, 2025-10-12 15:45, 2025-10-12 23:45, 2025-10-13 07:45, 2025-10-13 15:45, 2025-10-13 23:45, 2025-10-14 07:45, 2025-10-14 15:45
Spamhaus PBL
104.137.122.221 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: 2025-10-08 07:59:19.730000
Was present on blacklist at: 2025-10-08 07:59

Origin AS: AS33363 - BHN-TAMPA
BGP Prefix: 104.137.64.0/18
geo: United States, Wesley Chapel; 🕑 America/New_York
hostname: syn-104-137-122-221.res.spectrum.com
hostname_class: ['ip_in_hostname']
Address block ('inetnum' or 'NetRange' in whois database): 104.136.0.0 - 104.137.255.255
reserved_range: 0
ts_added: 2025-10-08 07:59:19.459000
ts_last_update: 2025-10-14 15:46:32.943000

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