It means that the ASN was allocated many years ago and has a long operational history. Older ASNs tend to be more stable, traceable, and well-established compared to newly created or frequently reallocated ASNs.
The questions every analyst asks before acting on this signal.
It means that the ASN was allocated many years ago and has a long operational history. Older ASNs tend to be more stable, traceable, and well-established compared to newly created or frequently reallocated ASNs.
Long-standing ASNs are usually associated with reputable organizations, regulated infrastructure, or stable network operators. Threat actors rarely operate from very old ASNs because such networks have stronger governance and abuse monitoring.
It is a supportive safe-bias context indicator. While it does not guarantee the absence of malicious activity, it increases confidence in the ASN's legitimacy when combined with other positive infrastructure signals.
A realistic shape of the entry the engine appends to the risk_signals array when this signal fires. Evidence keys are subgroup-default; per-signal overrides documented in the API reference.
{
"slug": "asn_historical_allocation",
"name": "ASN Allocated Long Time Ago",
"group": "dns_history",
"subgroup": "asn_infrastructure_profile",
"direction": "safe",
"evidence": {
"asn": "AS13335",
"asn_org": "Cloudflare, Inc.",
"asn_allocation_year": 2010,
"asn_geo_risk": "low",
"hosted_domain_count": 18420315
}
}13 other signals share the same subgroup. They detect related behaviors and often co-fire on the same IOC.
It indicates that the ASN has been allocated recently in the RIR system. Newly allocated ASNs often represent early-stag…
It indicates that the ASN belongs to hosting environments statistically associated with higher abuse rates, weak onboard…
It indicates that domains hosted under this ASN have been involved in malware distribution, payload hosting, or command-…
It indicates that the ASN shows geolocation anomalies, such as a mismatch between registry country and observed country …
The Verdict Gallery is a curated stream of real verdicts. Filter by this signal to see exactly which IOCs it caught, what other signals fired alongside it, and what the engine recommended.
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