IP Address: 140.17.137.229

This page shows DMARC authentication failure data for this IP address. Learn more about this data.

Geolocation Information

Country:: US United States
Coordinates:: 37.751, -97.822

WHOIS Information

Network Name:: DNIC-140-017
CIDR:: 140.17.0.0/16
Owner:: United States Department of Defense (DoD)
Org ID:: USDDD
Address:: 3990 E. Broad Street, Columbus, OH 43218

Analysis

This IP was first observed on November 20, 2025 and most recently on December 18, 2025. It has been associated with 2 failed authentication events affecting 2 messages, representing low but recurring activity. The IP belongs to DNIC-140-017 (United States Department of Defense (DoD)), a network with activity associated with United States. 3 other IPs in the same /24 subnet (140.17.137.*) also appear in this dataset.

Network Topology

Failures Detected from this IP

Showing 1-2 of 2 failures, affecting 2 messages

Date ▼	Messages
12/18/2025	1
11/20/2025	1

External Reputation Lookups

Look up this IP in external threat intelligence and reputation databases (opens in new tab):

AbuseIPDB Cisco Talos Project Honey Pot GreyNoise VirusTotal Shodan Censys Spamhaus

Nearby IPs

Other IPs in the 140.17.137.0/24 range observed failing DMARC:

140.17.137.224 (1 failure), 140.17.137.232 (1 failure), 140.17.137.235 (1 failure)