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Autonomous System

AS211077

UK Home Office (The Secretary of State for the Home Department)

Announced IPs
64,512
CIDR prefixes
14
ASN
AS211077

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

65/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS211077 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
51.64.9.0/24 7,250 2026-07-26 12:24:38
51.64.254.0/24 6,959 2026-07-26 12:24:17

Frequently Asked Questions

What is AS211077?

AS211077 is an Autonomous System Number assigned to UK Home Office (The Secretary of State for the Home Department). An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS211077 announce?

AS211077 announces 64.5K IPv4 addresses distributed across 14 routed CIDR prefixes. The network is registered in United Kingdom.

Who operates AS211077?

AS211077 is operated by UK Home Office (The Secretary of State for the Home Department). The organization is based in United Kingdom. You can view all IP ranges and related ASNs on the organization page.

What country is AS211077 registered in?

AS211077 is registered in United Kingdom. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-26 15:55:31 UTC
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