IP address

Search at other sites:

--73.245.21.31c-73-245-21-31.hsd1.fl.comcast.net

Shodan(more info)

Passive DNS

IP blacklists

Spamhaus PBL ISP

73.245.21.31 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: 2025-12-18 05:11:43.404000
Was present on blacklist at: 2025-12-11 05:07, 2025-12-18 05:11

DShield reports (IP summary, reports)

2025-12-10

Number of reports: 4188

Distinct targets: 19

2025-12-13

Number of reports: 2357

Distinct targets: 19

Origin AS

AS7922 - COMCAST-7922

BGP Prefix

73.0.0.0/8

geo

United States, Fort Lauderdale

🕑 America/New_York

hostname

c-73-245-21-31.hsd1.fl.comcast.net

hostname_class

['isp', 'ip_in_hostname']

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

73.0.0.0 - 73.255.255.255

reserved_range

0

ts_added

2025-12-11 05:07:06.068000

ts_last_update

2025-12-21 05:11:53.771000

Warden event timeline

DShield event timeline

Presence on blacklists