IP address


.206172.245.156.250172-245-156-250-host.colocrossing.com
Shodan(more info)
Passive DNS
Tags: IP in hostname
IP blacklists
PSBL
172.245.156.250 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: 2026-05-28 15:45:00.231000
Was present on blacklist at: 2026-05-15 23:45, 2026-05-16 07:45, 2026-05-16 15:45, 2026-05-16 23:45, 2026-05-17 07:45, 2026-05-17 15:45, 2026-05-17 23:45, 2026-05-18 07:45, 2026-05-18 15:45, 2026-05-18 23:45, 2026-05-19 07:45, 2026-05-19 15:45, 2026-05-19 23:45, 2026-05-20 07:45, 2026-05-20 15:45, 2026-05-20 23:45, 2026-05-21 07:45, 2026-05-21 15:45, 2026-05-21 23:45, 2026-05-22 07:45, 2026-05-23 15:45, 2026-05-23 23:45, 2026-05-24 07:45, 2026-05-24 15:45, 2026-05-24 23:45, 2026-05-25 07:45, 2026-05-25 15:45, 2026-05-25 23:45, 2026-05-26 07:45, 2026-05-26 15:45, 2026-05-26 23:45, 2026-05-27 07:45, 2026-05-27 15:45, 2026-05-27 23:45, 2026-05-28 07:45, 2026-05-28 15:45
Spamhaus SBL CSS
172.245.156.250 was recently listed on the Spamhaus SBL CSS blacklist, but currently it is not.

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: 2026-05-23 19:05:35.589000
Was present on blacklist at: 2026-05-15 23:50
UCEPROTECT L1
172.245.156.250 is listed on the UCEPROTECT L1 blacklist.

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

Last checked at: 2026-05-22 07:45:00.567000
Was present on blacklist at: 2026-05-16 15:45, 2026-05-16 23:45, 2026-05-17 07:45, 2026-05-17 15:45, 2026-05-17 23:45, 2026-05-18 07:45, 2026-05-18 15:45, 2026-05-18 23:45, 2026-05-19 07:45, 2026-05-19 23:45, 2026-05-20 07:45, 2026-05-20 15:45, 2026-05-20 23:45, 2026-05-21 07:45, 2026-05-21 15:45, 2026-05-22 07:45

Threat categories

TLRoleCategoryDetails
41 src spam
37 src

Origin AS
AS36352 - AS-COLOCROSSING
BGP Prefix
172.245.156.0/24
geo
United States, Buffalo
🕑 America/New_York
hostname
172-245-156-250-host.colocrossing.com
hostname_class
['ip_in_hostname']
Address block ('inetnum' or 'NetRange' in whois database)
172.245.0.0 - 172.245.255.255
rep
0.2062994740159002
reserved_range
0
Shodan's InternetDB
Open ports: 587, 2525
Tags: starttls
CPEs:
ts_added
2026-05-15 23:50:24.629000
ts_last_update
2026-05-28 15:50:51.644000

Warden event timeline

DShield event timeline

Presence on blacklists