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Autonomous System

AS21470

South West Communications Group Ltd

Announced IPs
6,144
CIDR prefixes
2
ASN
AS21470

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.

70/100
Moderate
How this score is built

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

Network profile

Source: PeeringDB →
Geographic scope Not Disclosed
Traffic ratio Not Disclosed
Peering policy Selective
IRR record AS21470

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
81.17.64.0/20 4.1K
66.7%
South West Communications Group Ltd GB
91.102.0.0/21 2.0K
76.5%
South West Communications Group Ltd GB

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS21470 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
91.102.0.0/21 5,010 2026-08-01 04:57:23
81.17.64.0/20 5,004 2026-08-01 04:53:21

Frequently Asked Questions

What is AS21470?

AS21470 is an Autonomous System Number assigned to South West Communications Group Ltd. 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 AS21470 announce?

AS21470 announces 6.1K IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in United Kingdom.

Who operates AS21470?

AS21470 is operated by South West Communications Group Ltd. The organization is based in United Kingdom. You can view all IP ranges and related ASNs on the organization page.

What country is AS21470 registered in?

AS21470 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: 2026-08-01 05:10:30 UTC
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