Network: STET_HEEMSKERK_BV

This page shows DMARC authentication failures originating from the STET_HEEMSKERK_BV network. Learn more about this data.

Network Information

WHOIS Owner:: VODAFONE_ZIGGO
Countries:: NL

Unique IPs:: 1

CIDR:: 213.125.128.0/17

Analysis

This network has contributed 1 unique IP address across 5 failed authentication events, accounting for 10 messages. Activity spans from October 1, 2025 to November 13, 2025, with peak volume in October 2025 (4 events). The top countries by failure volume are The Netherlands (100%). The most active source IP from this network includes 213.125.178.186 (8 failures). A single IP dominates activity from STET_HEEMSKERK_BV, suggesting a concentrated or persistent source rather than distributed infrastructure.

Failures Detected from this Network

Showing 1-5 of 5 failures, affecting 10 messages

Show Confoundersⓘ

Date ▼	Source IP	Country	Messages
11/13/2025	213.125.178.186	NL	4
11/12/2025	213.125.178.186	NL	2
10/17/2025	213.125.178.186	NL	1
10/16/2025	213.125.178.186	NL	1
10/1/2025	213.125.178.186	NL	2

Countries

The Netherlands