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Autonomous System

AS51173

Premier Data Networks LTD

Announced IPs
3,328
CIDR prefixes
5
ASN
AS51173

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 →

Top CIDR ranges

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS51173 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
89.106.142.0/24 106,953 2026-07-31 01:46:26
37.203.49.0/24 31,356 2026-07-31 02:00:25
37.203.52.0/24 30,958 2026-07-31 02:00:25
37.203.53.0/24 24,523 2026-07-31 02:04:10
37.203.50.0/24 19,671 2026-07-31 02:00:25
89.106.136.0/24 17,577 2026-07-31 01:46:26
89.106.139.0/24 7,863 2026-07-31 01:46:26
89.106.137.0/24 5,950 2026-07-31 01:46:26
89.106.141.0/24 5,814 2026-07-31 01:46:26
37.203.48.0/24 5,807 2026-07-31 02:00:25
89.106.140.0/24 5,778 2026-07-31 01:46:26
89.106.143.0/24 5,724 2026-07-31 01:46:26
37.203.51.0/24 5,686 2026-07-31 02:00:25

Frequently Asked Questions

What is AS51173?

AS51173 is an Autonomous System Number assigned to Premier Data Networks 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 AS51173 announce?

AS51173 announces 3.3K IPv4 addresses distributed across 5 routed CIDR prefixes. The network is registered in Ireland.

Who operates AS51173?

AS51173 is operated by Premier Data Networks LTD. The organization is based in Ireland. You can view all IP ranges and related ASNs on the organization page.

What country is AS51173 registered in?

AS51173 is registered in Ireland. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-31 02:10:32 UTC
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