Sh4mefulIP Address: 2602:2ad:dc:18::28
Dormant. IP address 2602:2ad:dc:18::28 is registered to Louisiana Tech University and geolocates to United States. It was observed in sh4meful's dataset on July 2, 2025. Over the observation window, it has failed DMARC alignment once, targeting one sender domain. Its reverse DNS resolves to smtp3.latech.edu. Network context: this address sits within BULLDOGS-RESEARCH (Louisiana Tech University), a network sh4meful has observed producing 1 failures across 1 distinct IP during the same window.
Failure Activity Over Time
This IP has claimed to send from 1 sender domain monitored by sh4meful. The single targeted domain suggests either a compromised sending source or a spoofing attempt focused on a specific brand.
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:
- BULLDOGS-RESEARCH
- CIDR:
2602:2AD::/40- Owner:
- Louisiana Tech University
- Org ID:
LTU-1- Address:
- Computing Center Wyly Tower, Railroad Ave, Ruston, LA 71270
- Reverse DNS:
-
smtp3.latech.edu
Last updated: 2/5/2026
Analysis
This IP was observed generating a single DMARC authentication failure on July 2, 2025. With only one data point, the event is better read as a single suspicious observation than a sustained campaign. Every message observed from this source failed both SPF and DKIM verification. Receiving mail providers took no enforcement action beyond reporting, indicating the sending domain's DMARC policy is set to p=none.
The reverse DNS record resolves to smtp3.latech.edu. Whether this represents legitimate mail infrastructure depends on whether the hostname aligns with the domains this address is claiming to send on behalf of. The ::28 host portion of this IPv6 address is notable: cloud providers typically allocate a full /64 to each customer, and low-suffix addresses like this are what default provisioning scripts assign to fresh virtual machines, a pattern more consistent with a short-lived abuse host than a deliberately configured mail relay.
Geolocation places the host in United States, on infrastructure operated by Louisiana Tech University. Abuse-reporting channels in this jurisdiction are generally responsive, and reports to the network operator can result in timely remediation.
The address is registered to Louisiana Tech University (BULLDOGS-RESEARCH). Enterprise-registered addresses that appear in DMARC failure data are typically either compromised hosts on the organization's network or outbound mail relays that are not properly authorized in the domain's SPF record.
Across the wider BULLDOGS-RESEARCH network, 1 distinct IP has been associated with 1 authentication failures over 1 observed messages, spanning 1 country. Activity on this network is sparse in this dataset, suggesting isolated rather than systematic abuse.
For IPv6 addresses, per-address blocking provides minimal protection. Cloud providers and large networks typically allocate a full /64 prefix (containing approximately 18 quintillion addresses) to each customer. An attacker assigned a /64 can rotate through effectively unlimited addresses within the same prefix at no cost. Blocking should target the /48 or /64 prefix rather than the individual address.
If your domain appears in the From header of mail from this address, treat it as probable spoofing. Verify that your SPF record does not authorize this host, directly or through nested include mechanisms, and that no DKIM selector you publish has been issued to it. If both checks come back clean, the receiver's none enforcement action is doing its job.
Your DMARC policy posture matters more than any IP-level response here. A p=none policy provides visibility but no enforcement, meaning mail is reported but not blocked. Moving to p=quarantine and then p=reject closes the gap for attackers who manage partial alignment. Domains that remain at p=none long-term tend to be impersonated repeatedly, because the cost to the attacker of attempting is effectively zero.
Blocking this individual address has limited durability: an attacker can rotate to another address in the same /24 subnet at effectively zero cost. More durable responses include monitoring aggregate DMARC reports so new sources are visible as they emerge, tightening SPF to remove overly permissive include chains or +all mechanisms, and ensuring DKIM is signing every legitimate outbound stream so alignment failures are unambiguous. The formal abuse contact for Louisiana Tech University is listed in ARIN WHOIS records, and timely remediation is achievable through that channel.
External Reputation Lookups
Look up this IP in external threat intelligence and reputation databases (opens in new tab):
Recommended Action
If this IP appears in your own DMARC reports, treat it as an unauthorized sender unless you have specifically verified it as a legitimate service you use. Ensure your DMARC policy is at p=quarantine or p=reject to prevent delivery of messages this IP claims to send from your domain. If you're new to DMARC, our complete guide walks through the mechanics.