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Autonomous System

AS16376

SysGroup plc

Announced IPs
4,096
CIDR prefixes
2
ASN
AS16376

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 →

Network profile

Source: PeeringDB →
Network type Content
Traffic level 100-1000Mbps
Geographic scope Europe
Traffic ratio Balanced
Peering policy Open
IRR record AS-SYSGROUP

Present at 1 internet exchange: LINX LON1: Main

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
37.35.88.0/21 2.0K
3.5%
SysGroup plc GB
94.199.184.0/21 2.0K
24.0%
SysGroup plc GB

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS16376 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
37.35.92.0/22 15,401 2026-07-29 23:01:32
94.199.184.0/22 14,517 2026-07-29 23:01:32
37.35.88.0/22 14,246 2026-07-29 23:01:32
94.199.188.0/22 13,507 2026-07-29 23:01:32
37.35.88.0/21 114 2026-07-13 01:59:55
94.199.184.0/21 114 2026-07-13 01:59:55

Frequently Asked Questions

What is AS16376?

AS16376 is an Autonomous System Number assigned to SysGroup plc. 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 AS16376 announce?

AS16376 announces 4.1K IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in United Kingdom.

Who operates AS16376?

AS16376 is operated by SysGroup plc. The organization is based in United Kingdom. You can view all IP ranges and related ASNs on the organization page.

What country is AS16376 registered in?

AS16376 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: 2026-07-29 23:10:32 UTC
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