Skip to content
NewVerdictIQ Connector is here. One Docker image enriches your DNS logs with verdicts inside your network and forwards them to your SIEM.Install guide

Registry–Geo CIDR Full Match

It indicates that the delegated registry CIDR fully matches the geolocation CIDR, meaning the entire IP block consistently maps to a single country or region with no fragmentation.

Analyst Q&A

What this signal answers

The questions every analyst asks before acting on this signal.

What it detects01

What does 'Registry, Geo CIDR Full Match' indicate?

It indicates that the delegated registry CIDR fully matches the geolocation CIDR, meaning the entire IP block consistently maps to a single country or region with no fragmentation.

Why it matters02

Why is full CIDR geolocation alignment considered a safe signal?

Blocks that remain unfragmented and tied to a single region for long periods typically belong to stable operators. Such blocks show low churn and minimal abuse activity across time.

How analysts use it03

How should analysts interpret this indicator?

This is a supportive safe-bias signal. While not sufficient to classify a domain or IP as definitively benign, it adds environmental confidence when combined with other stable or long-term infrastructure signals.

Evidence shape

What Registry–Geo CIDR Full Match looks like in the response

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.

json
{
  "slug": "ip_registry_geo_cidr_full_match",
  "name": "Registry–Geo CIDR Full Match",
  "group": "dns_history",
  "subgroup": "ip_registry_allocation_profile",
  "direction": "safe",
  "evidence": {
    "registry": "ARIN",
    "allocation_class": "datacenter",
    "cidr": "104.21.0.0/16",
    "allocation_recency_days": 1340,
    "block_risk": "low"
  }
}
See in API reference
Siblings

Peers in IP Registry Allocation Profile

5 other signals share the same subgroup. They detect related behaviors and often co-fire on the same IOC.

Large-Scale Enterprise IP Block

It indicates that the IP address belongs to a large-scale, long-established, and officially allocated enterprise network…

SafeCore
Assigned IP Block

It indicates that the IP block has the RIR status 'assigned', which is commonly associated with end-user or reseller add…

Malicious
IP Block Recently Allocated

It means the IP block was assigned in a very recent time window. Newly allocated address space is frequently observed in…

Malicious
Small Allocation Abuse Pattern

It indicates that a small-sized IP prefix shows a concentration of malicious activity, such as repeated blacklist hits, …

Malicious
Show 1 more in IP Registry Allocation Profile

Start free, in five minutes

1,000 verdicts/month on the free tier, LLM layer included. No card required.