IP address


--172.56.81.87
Shodan(more info)
Passive DNS
Tags:
IP blacklists
PSBL
172.56.81.87 is listed on the PSBL blacklist.

Description: The Passive Spam Block List uses the Spamikaze software to detect spam IPs.
Type of feed: primary (feed detail page)

Last checked at: 2025-09-16 23:45:00.396000
Was present on blacklist at: 2025-09-02 07:45, 2025-09-02 15:45, 2025-09-02 23:45, 2025-09-03 07:45, 2025-09-03 15:45, 2025-09-03 23:45, 2025-09-04 07:45, 2025-09-04 15:45, 2025-09-04 23:45, 2025-09-05 07:45, 2025-09-05 15:45, 2025-09-05 23:45, 2025-09-06 07:45, 2025-09-06 15:45, 2025-09-06 23:45, 2025-09-07 07:45, 2025-09-07 15:45, 2025-09-07 23:45, 2025-09-08 07:45, 2025-09-08 15:45, 2025-09-08 23:45, 2025-09-09 07:45, 2025-09-09 15:45, 2025-09-09 23:45, 2025-09-10 07:45, 2025-09-10 15:45, 2025-09-10 23:45, 2025-09-11 07:45, 2025-09-11 15:45, 2025-09-11 23:45, 2025-09-12 07:45, 2025-09-12 15:45, 2025-09-12 23:45, 2025-09-13 07:45, 2025-09-13 15:45, 2025-09-13 23:45, 2025-09-14 07:45, 2025-09-14 15:45, 2025-09-14 23:45, 2025-09-15 07:45, 2025-09-15 15:45, 2025-09-15 23:45, 2025-09-16 07:45, 2025-09-16 15:45, 2025-09-16 23:45
Spamhaus PBL ISP
172.56.81.87 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: 2025-09-16 07:50:34.202000
Was present on blacklist at: 2025-09-02 07:50, 2025-09-09 07:50, 2025-09-16 07:50
UCEPROTECT L1
172.56.81.87 is listed on the UCEPROTECT L1 blacklist.

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

Last checked at: 2025-09-08 23:45:00.642000
Was present on blacklist at: 2025-09-02 07:45, 2025-09-02 15:45, 2025-09-02 23:45, 2025-09-03 07:45, 2025-09-03 15:45, 2025-09-03 23:45, 2025-09-04 07:45, 2025-09-04 15:45, 2025-09-04 23:45, 2025-09-05 07:45, 2025-09-05 15:45, 2025-09-05 23:45, 2025-09-06 07:45, 2025-09-06 15:45, 2025-09-06 23:45, 2025-09-07 07:45, 2025-09-07 15:45, 2025-09-07 23:45, 2025-09-08 07:45, 2025-09-08 15:45, 2025-09-08 23:45
Origin AS
AS21928 - T-MOBILE-AS21928
BGP Prefix
172.56.80.0/21
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
2025-09-02 07:50:24.566000
ts_last_update
2025-09-16 23:47:38.934000

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Presence on blacklists