75.121.15.149
Classification: Malicious
75.121.15.149 is a malicious IP address in Washington, US. 3 sightings from Barracuda and Rapid7 Open Data (Mail Spammer), last seen 2026-10-17.
Current activity
- Known attacker — Seen launching attacks over the Internet.
Blacklist sightings
| Description | Source | First seen | Last seen | Labels | MITRE ATT&CK |
|---|---|---|---|---|---|
| Mail Spammer | Barracuda | 2019-09-08 09:19:10 | 2026-10-17 14:03:45 | attacker malicious-activity | |
| NTP Open Resolver | Rapid7 Open Data | 2019-08-05 03:47:17 | 2019-08-05 03:47:17 |
Tags
ntp reflection amplification open resolver monlistWhois information
- AS name
- AS22561 CenturyLink Communications, LLC
- AS registry
- arin
- AS date
- 2006-10-05 00:00:00
- AS CIDR
- 75.121.0.0/16
- CIDR
- 75.120.0.0/15
- Registrant
- CenturyLink Communications, LLC
- Address
- 100 CENTURYLINK DR
- City
- Washington
- State
- DC
- Postal code
- 20511
- Country
- US — United States 🇺🇸
- Contact email
- [email protected], [email protected]
- First indexed
- 2019-08-05 03:47:17
- Last updated
- 2026-10-17 14:03:46
Malicious IPs in the same CIDR
75.121.76.234 75.121.68.238 75.121.68.157 75.121.13.231 75.121.84.127 75.121.22.218 75.121.71.203 75.121.83.124 75.121.28.139 75.121.11.182 75.121.57.250 75.121.86.252 75.121.59.138 75.121.15.145 75.121.82.181 75.121.81.146 75.121.72.240 75.121.83.186 75.121.56.114 75.121.83.136 75.121.59.209 75.121.87.164 75.121.56.189 75.121.59.223 75.121.15.224